./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_05-lockfuns.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_05-lockfuns.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF --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 26a76453a0148a9083e5ca91fffcb3e5777f05c6718e7fe778e8f06905a5ca02 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:48:16,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:48:16,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:48:16,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:48:16,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:48:16,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:48:16,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:48:16,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:48:16,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:48:16,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:48:16,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:48:16,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:48:16,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:48:16,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:48:16,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:48:16,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:48:16,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:48:16,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:48:16,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:48:16,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:48:16,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:48:16,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:48:16,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:48:16,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:48:16,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:48:16,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:48:16,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:48:16,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:48:16,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:48:16,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:48:16,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:48:16,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:48:16,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:48:16,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:48:16,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:48:16,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:48:16,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:48:16,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:48:16,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:48:16,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:48:16,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:48:16,304 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-20 05:48:16,334 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:48:16,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:48:16,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:48:16,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:48:16,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:48:16,336 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:48:16,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:48:16,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:48:16,337 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:48:16,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:48:16,337 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:48:16,345 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:48:16,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:48:16,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:48:16,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:48:16,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:48:16,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:48:16,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:48:16,346 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-20 05:48:16,346 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:48:16,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:48:16,347 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:48:16,347 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:48:16,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:48:16,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:48:16,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:48:16,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:48:16,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:48:16,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:48:16,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:48:16,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:48:16,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:48:16,349 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:48:16,349 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:48:16,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:48:16,350 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:48:16,350 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_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26a76453a0148a9083e5ca91fffcb3e5777f05c6718e7fe778e8f06905a5ca02 [2021-11-20 05:48:16,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:48:16,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:48:16,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:48:16,761 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:48:16,762 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:48:16,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/goblint-regression/04-mutex_05-lockfuns.i [2021-11-20 05:48:16,869 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/data/889881de3/147ac0a93f2f452b99d8088201bed620/FLAG5ed4c37ef [2021-11-20 05:48:17,743 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:48:17,744 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/sv-benchmarks/c/goblint-regression/04-mutex_05-lockfuns.i [2021-11-20 05:48:17,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/data/889881de3/147ac0a93f2f452b99d8088201bed620/FLAG5ed4c37ef [2021-11-20 05:48:17,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/data/889881de3/147ac0a93f2f452b99d8088201bed620 [2021-11-20 05:48:17,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:48:17,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:48:17,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:48:17,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:48:17,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:48:17,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:48:17" (1/1) ... [2021-11-20 05:48:17,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38885273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:17, skipping insertion in model container [2021-11-20 05:48:17,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:48:17" (1/1) ... [2021-11-20 05:48:17,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:48:18,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:48:18,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:48:18,730 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:48:18,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:48:18,895 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:48:18,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18 WrapperNode [2021-11-20 05:48:18,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:48:18,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:48:18,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:48:18,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:48:18,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,971 INFO L137 Inliner]: procedures = 264, calls = 19, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 65 [2021-11-20 05:48:18,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:48:18,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:48:18,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:48:18,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:48:18,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:19,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:19,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:19,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:19,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:48:19,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:48:19,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:48:19,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:48:19,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:19,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:48:19,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:48:19,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:48:19,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:48:19,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:48:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:48:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:48:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:48:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-20 05:48:19,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:48:19,109 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-20 05:48:19,109 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-20 05:48:19,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:48:19,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:48:19,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:48:19,111 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 05:48:19,230 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:48:19,232 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:48:19,416 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:48:19,424 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:48:19,425 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 05:48:19,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:48:19 BoogieIcfgContainer [2021-11-20 05:48:19,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:48:19,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:48:19,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:48:19,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:48:19,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:48:17" (1/3) ... [2021-11-20 05:48:19,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@324c89d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:48:19, skipping insertion in model container [2021-11-20 05:48:19,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (2/3) ... [2021-11-20 05:48:19,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@324c89d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:48:19, skipping insertion in model container [2021-11-20 05:48:19,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:48:19" (3/3) ... [2021-11-20 05:48:19,437 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_05-lockfuns.i [2021-11-20 05:48:19,443 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 05:48:19,444 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:48:19,444 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-20 05:48:19,444 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 05:48:19,481 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,481 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,482 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,482 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,482 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,483 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,483 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,483 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,484 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,484 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,484 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,485 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,485 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,486 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,486 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,487 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,487 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,487 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,488 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,488 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,489 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,489 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,489 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,490 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,490 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,490 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,491 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,491 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,491 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,492 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,492 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,493 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,493 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,493 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,520 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,520 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:48:19,527 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-20 05:48:19,605 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:48:19,621 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 [2021-11-20 05:48:19,621 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-20 05:48:19,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 80 transitions, 168 flow [2021-11-20 05:48:19,734 INFO L129 PetriNetUnfolder]: 0/79 cut-off events. [2021-11-20 05:48:19,734 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 05:48:19,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 0/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-11-20 05:48:19,737 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 80 transitions, 168 flow [2021-11-20 05:48:19,745 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 71 transitions, 145 flow [2021-11-20 05:48:19,775 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-11-20 05:48:19,775 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 05:48:19,776 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:48:19,776 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] [2021-11-20 05:48:19,777 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)] === [2021-11-20 05:48:19,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:19,787 INFO L85 PathProgramCache]: Analyzing trace with hash -485479743, now seen corresponding path program 1 times [2021-11-20 05:48:19,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:19,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856164752] [2021-11-20 05:48:19,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:19,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:20,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:48:20,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:20,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856164752] [2021-11-20 05:48:20,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856164752] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:20,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:20,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:48:20,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94018362] [2021-11-20 05:48:20,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:20,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:48:20,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:20,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:48:20,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:48:20,176 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 80 [2021-11-20 05:48:20,180 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 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) [2021-11-20 05:48:20,181 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:48:20,181 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 80 [2021-11-20 05:48:20,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:48:20,289 INFO L129 PetriNetUnfolder]: 37/254 cut-off events. [2021-11-20 05:48:20,289 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 05:48:20,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 254 events. 37/254 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1091 event pairs, 15 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 323. Up to 54 conditions per place. [2021-11-20 05:48:20,297 INFO L132 encePairwiseOnDemand]: 72/80 looper letters, 17 selfloop transitions, 6 changer transitions 0/81 dead transitions. [2021-11-20 05:48:20,297 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 81 transitions, 211 flow [2021-11-20 05:48:20,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:48:20,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 05:48:20,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2021-11-20 05:48:20,322 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9291666666666667 [2021-11-20 05:48:20,325 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 223 transitions. [2021-11-20 05:48:20,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 223 transitions. [2021-11-20 05:48:20,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:48:20,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 223 transitions. [2021-11-20 05:48:20,347 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) [2021-11-20 05:48:20,360 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) [2021-11-20 05:48:20,363 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) [2021-11-20 05:48:20,365 INFO L186 Difference]: Start difference. First operand has 75 places, 71 transitions, 145 flow. Second operand 3 states and 223 transitions. [2021-11-20 05:48:20,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 81 transitions, 211 flow [2021-11-20 05:48:20,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 81 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 05:48:20,384 INFO L242 Difference]: Finished difference. Result has 78 places, 77 transitions, 196 flow [2021-11-20 05:48:20,387 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=74, 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=78, PETRI_TRANSITIONS=77} [2021-11-20 05:48:20,392 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, 3 predicate places. [2021-11-20 05:48:20,392 INFO L470 AbstractCegarLoop]: Abstraction has has 78 places, 77 transitions, 196 flow [2021-11-20 05:48:20,393 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) [2021-11-20 05:48:20,393 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:48:20,394 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] [2021-11-20 05:48:20,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:48:20,394 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)] === [2021-11-20 05:48:20,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:20,396 INFO L85 PathProgramCache]: Analyzing trace with hash -2023890899, now seen corresponding path program 1 times [2021-11-20 05:48:20,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:20,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242343985] [2021-11-20 05:48:20,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:20,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:20,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:48:20,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:20,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242343985] [2021-11-20 05:48:20,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242343985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:20,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:20,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:48:20,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851677405] [2021-11-20 05:48:20,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:20,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:48:20,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:20,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:48:20,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:48:20,511 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 80 [2021-11-20 05:48:20,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 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) [2021-11-20 05:48:20,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:48:20,515 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 80 [2021-11-20 05:48:20,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:48:20,672 INFO L129 PetriNetUnfolder]: 55/348 cut-off events. [2021-11-20 05:48:20,672 INFO L130 PetriNetUnfolder]: For 85/90 co-relation queries the response was YES. [2021-11-20 05:48:20,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 348 events. 55/348 cut-off events. For 85/90 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1807 event pairs, 23 based on Foata normal form. 2/317 useless extension candidates. Maximal degree in co-relation 550. Up to 102 conditions per place. [2021-11-20 05:48:20,678 INFO L132 encePairwiseOnDemand]: 74/80 looper letters, 24 selfloop transitions, 7 changer transitions 0/87 dead transitions. [2021-11-20 05:48:20,679 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 87 transitions, 296 flow [2021-11-20 05:48:20,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:48:20,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 05:48:20,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2021-11-20 05:48:20,682 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9 [2021-11-20 05:48:20,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2021-11-20 05:48:20,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2021-11-20 05:48:20,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:48:20,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2021-11-20 05:48:20,685 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) [2021-11-20 05:48:20,687 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) [2021-11-20 05:48:20,688 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) [2021-11-20 05:48:20,688 INFO L186 Difference]: Start difference. First operand has 78 places, 77 transitions, 196 flow. Second operand 3 states and 216 transitions. [2021-11-20 05:48:20,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 87 transitions, 296 flow [2021-11-20 05:48:20,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 87 transitions, 278 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-20 05:48:20,694 INFO L242 Difference]: Finished difference. Result has 80 places, 82 transitions, 240 flow [2021-11-20 05:48:20,695 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=76, 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=80, PETRI_TRANSITIONS=82} [2021-11-20 05:48:20,696 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, 5 predicate places. [2021-11-20 05:48:20,696 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 82 transitions, 240 flow [2021-11-20 05:48:20,697 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) [2021-11-20 05:48:20,697 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:48:20,697 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] [2021-11-20 05:48:20,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:48:20,698 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)] === [2021-11-20 05:48:20,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:20,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1317880328, now seen corresponding path program 1 times [2021-11-20 05:48:20,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:20,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214018597] [2021-11-20 05:48:20,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:20,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:20,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:48:20,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:20,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214018597] [2021-11-20 05:48:20,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214018597] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:20,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:20,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:48:20,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296211161] [2021-11-20 05:48:20,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:20,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:48:20,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:20,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:48:20,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:48:20,794 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 80 [2021-11-20 05:48:20,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 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) [2021-11-20 05:48:20,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:48:20,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 80 [2021-11-20 05:48:20,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:48:20,936 INFO L129 PetriNetUnfolder]: 57/333 cut-off events. [2021-11-20 05:48:20,936 INFO L130 PetriNetUnfolder]: For 140/142 co-relation queries the response was YES. [2021-11-20 05:48:20,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 333 events. 57/333 cut-off events. For 140/142 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1672 event pairs, 16 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 614. Up to 101 conditions per place. [2021-11-20 05:48:20,944 INFO L132 encePairwiseOnDemand]: 74/80 looper letters, 28 selfloop transitions, 9 changer transitions 0/93 dead transitions. [2021-11-20 05:48:20,944 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 93 transitions, 364 flow [2021-11-20 05:48:20,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:48:20,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 05:48:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2021-11-20 05:48:20,953 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8916666666666667 [2021-11-20 05:48:20,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2021-11-20 05:48:20,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2021-11-20 05:48:20,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:48:20,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2021-11-20 05:48:20,957 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) [2021-11-20 05:48:20,960 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) [2021-11-20 05:48:20,961 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) [2021-11-20 05:48:20,961 INFO L186 Difference]: Start difference. First operand has 80 places, 82 transitions, 240 flow. Second operand 3 states and 214 transitions. [2021-11-20 05:48:20,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 93 transitions, 364 flow [2021-11-20 05:48:20,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 93 transitions, 344 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-20 05:48:20,973 INFO L242 Difference]: Finished difference. Result has 82 places, 87 transitions, 294 flow [2021-11-20 05:48:20,974 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=78, 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=82, PETRI_TRANSITIONS=87} [2021-11-20 05:48:20,977 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, 7 predicate places. [2021-11-20 05:48:20,977 INFO L470 AbstractCegarLoop]: Abstraction has has 82 places, 87 transitions, 294 flow [2021-11-20 05:48:20,978 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) [2021-11-20 05:48:20,978 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:48:20,978 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, 1, 1, 1, 1] [2021-11-20 05:48:20,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 05:48:20,980 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)] === [2021-11-20 05:48:20,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:20,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1334683447, now seen corresponding path program 1 times [2021-11-20 05:48:20,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:20,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447954571] [2021-11-20 05:48:20,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:20,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:21,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:48:21,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:21,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447954571] [2021-11-20 05:48:21,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447954571] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:21,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:21,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:48:21,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442198533] [2021-11-20 05:48:21,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:21,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:48:21,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:21,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:48:21,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:48:21,097 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 80 [2021-11-20 05:48:21,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 87 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2021-11-20 05:48:21,098 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:48:21,098 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 80 [2021-11-20 05:48:21,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:48:21,143 INFO L129 PetriNetUnfolder]: 1/98 cut-off events. [2021-11-20 05:48:21,143 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-11-20 05:48:21,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 98 events. 1/98 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 1 based on Foata normal form. 2/99 useless extension candidates. Maximal degree in co-relation 121. Up to 12 conditions per place. [2021-11-20 05:48:21,144 INFO L132 encePairwiseOnDemand]: 76/80 looper letters, 7 selfloop transitions, 4 changer transitions 1/67 dead transitions. [2021-11-20 05:48:21,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 67 transitions, 194 flow [2021-11-20 05:48:21,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:48:21,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 05:48:21,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2021-11-20 05:48:21,160 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9041666666666667 [2021-11-20 05:48:21,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 217 transitions. [2021-11-20 05:48:21,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 217 transitions. [2021-11-20 05:48:21,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:48:21,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 217 transitions. [2021-11-20 05:48:21,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2021-11-20 05:48:21,165 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) [2021-11-20 05:48:21,165 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) [2021-11-20 05:48:21,165 INFO L186 Difference]: Start difference. First operand has 82 places, 87 transitions, 294 flow. Second operand 3 states and 217 transitions. [2021-11-20 05:48:21,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 67 transitions, 194 flow [2021-11-20 05:48:21,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 67 transitions, 158 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-11-20 05:48:21,174 INFO L242 Difference]: Finished difference. Result has 72 places, 66 transitions, 142 flow [2021-11-20 05:48:21,175 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=72, PETRI_TRANSITIONS=66} [2021-11-20 05:48:21,177 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, -3 predicate places. [2021-11-20 05:48:21,177 INFO L470 AbstractCegarLoop]: Abstraction has has 72 places, 66 transitions, 142 flow [2021-11-20 05:48:21,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2021-11-20 05:48:21,178 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:48:21,178 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] [2021-11-20 05:48:21,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 05:48:21,179 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-20 05:48:21,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:21,181 INFO L85 PathProgramCache]: Analyzing trace with hash -716972367, now seen corresponding path program 1 times [2021-11-20 05:48:21,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:21,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197787227] [2021-11-20 05:48:21,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:21,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:21,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:48:21,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:21,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197787227] [2021-11-20 05:48:21,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197787227] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:21,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:21,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:48:21,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317684460] [2021-11-20 05:48:21,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:21,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:48:21,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:21,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:48:21,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:48:21,430 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 80 [2021-11-20 05:48:21,431 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 66 transitions, 142 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 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) [2021-11-20 05:48:21,431 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:48:21,432 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 80 [2021-11-20 05:48:21,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:48:21,485 INFO L129 PetriNetUnfolder]: 1/96 cut-off events. [2021-11-20 05:48:21,485 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 05:48:21,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 96 events. 1/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 1 based on Foata normal form. 1/97 useless extension candidates. Maximal degree in co-relation 88. Up to 6 conditions per place. [2021-11-20 05:48:21,486 INFO L132 encePairwiseOnDemand]: 75/80 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2021-11-20 05:48:21,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 65 transitions, 158 flow [2021-11-20 05:48:21,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:48:21,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 05:48:21,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 406 transitions. [2021-11-20 05:48:21,490 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8458333333333333 [2021-11-20 05:48:21,490 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 406 transitions. [2021-11-20 05:48:21,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 406 transitions. [2021-11-20 05:48:21,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:48:21,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 406 transitions. [2021-11-20 05:48:21,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 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) [2021-11-20 05:48:21,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 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) [2021-11-20 05:48:21,496 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 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) [2021-11-20 05:48:21,497 INFO L186 Difference]: Start difference. First operand has 72 places, 66 transitions, 142 flow. Second operand 6 states and 406 transitions. [2021-11-20 05:48:21,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 65 transitions, 158 flow [2021-11-20 05:48:21,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 65 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 05:48:21,500 INFO L242 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2021-11-20 05:48:21,501 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2021-11-20 05:48:21,505 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, -1 predicate places. [2021-11-20 05:48:21,506 INFO L470 AbstractCegarLoop]: Abstraction has has 74 places, 0 transitions, 0 flow [2021-11-20 05:48:21,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 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) [2021-11-20 05:48:21,510 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2021-11-20 05:48:21,510 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2021-11-20 05:48:21,511 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2021-11-20 05:48:21,511 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 8 remaining) [2021-11-20 05:48:21,512 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2021-11-20 05:48:21,512 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2021-11-20 05:48:21,512 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2021-11-20 05:48:21,513 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2021-11-20 05:48:21,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 05:48:21,521 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-20 05:48:21,527 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-20 05:48:21,528 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 05:48:21,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:48:21 BasicIcfg [2021-11-20 05:48:21,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 05:48:21,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:48:21,542 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:48:21,542 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:48:21,542 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:48:19" (3/4) ... [2021-11-20 05:48:21,545 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 05:48:21,551 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-20 05:48:21,556 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-20 05:48:21,557 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-20 05:48:21,557 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 05:48:21,601 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 05:48:21,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:48:21,602 INFO L158 Benchmark]: Toolchain (without parser) took 3697.85ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 62.6MB in the beginning and 80.3MB in the end (delta: -17.7MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2021-11-20 05:48:21,603 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 73.4MB. Free memory was 46.5MB in the beginning and 46.5MB in the end (delta: 25.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:48:21,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 987.73ms. Allocated memory is still 98.6MB. Free memory was 62.3MB in the beginning and 56.7MB in the end (delta: 5.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 05:48:21,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.83ms. Allocated memory is still 98.6MB. Free memory was 56.7MB in the beginning and 54.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:48:21,604 INFO L158 Benchmark]: Boogie Preprocessor took 44.30ms. Allocated memory is still 98.6MB. Free memory was 54.5MB in the beginning and 53.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:48:21,605 INFO L158 Benchmark]: RCFGBuilder took 409.82ms. Allocated memory is still 98.6MB. Free memory was 53.2MB in the beginning and 41.5MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 05:48:21,606 INFO L158 Benchmark]: TraceAbstraction took 2111.48ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 41.0MB in the beginning and 82.4MB in the end (delta: -41.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:48:21,606 INFO L158 Benchmark]: Witness Printer took 59.75ms. Allocated memory is still 127.9MB. Free memory was 82.4MB in the beginning and 80.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:48:21,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 73.4MB. Free memory was 46.5MB in the beginning and 46.5MB in the end (delta: 25.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 987.73ms. Allocated memory is still 98.6MB. Free memory was 62.3MB in the beginning and 56.7MB in the end (delta: 5.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.83ms. Allocated memory is still 98.6MB. Free memory was 56.7MB in the beginning and 54.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.30ms. Allocated memory is still 98.6MB. Free memory was 54.5MB in the beginning and 53.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 409.82ms. Allocated memory is still 98.6MB. Free memory was 53.2MB in the beginning and 41.5MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2111.48ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 41.0MB in the beginning and 82.4MB in the end (delta: -41.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 59.75ms. Allocated memory is still 127.9MB. Free memory was 82.4MB in the beginning and 80.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 - PositiveResult [Line: 935]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 935]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 937]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 927]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 927]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 105 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: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 54 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294occurred in iteration=3, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 370 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-20 05:48:21,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91b76f5b-235d-4f66-a489-5c8b020e78e9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE