./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_47-fun_write.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_47-fun_write.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4349e9f780aa852bf667d29095b5aaef630c7e32a3c0068468fa5a88e5c63f46 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:13:41,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:13:41,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:13:41,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:13:41,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:13:41,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:13:41,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:13:41,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:13:41,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:13:41,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:13:41,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:13:41,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:13:41,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:13:41,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:13:41,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:13:41,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:13:41,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:13:41,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:13:41,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:13:41,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:13:41,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:13:41,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:13:41,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:13:41,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:13:41,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:13:41,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:13:41,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:13:41,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:13:41,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:13:41,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:13:41,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:13:41,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:13:41,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:13:41,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:13:41,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:13:41,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:13:41,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:13:41,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:13:41,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:13:41,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:13:41,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:13:41,354 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-07 01:13:41,383 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:13:41,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:13:41,385 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:13:41,385 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:13:41,386 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:13:41,386 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:13:41,386 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:13:41,386 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:13:41,387 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:13:41,387 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:13:41,387 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:13:41,388 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:13:41,388 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:13:41,388 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:13:41,389 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:13:41,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:13:41,390 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:13:41,390 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 01:13:41,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:13:41,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:13:41,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:13:41,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:13:41,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:13:41,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:13:41,392 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-07 01:13:41,393 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:13:41,393 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:13:41,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:13:41,394 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:13:41,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:13:41,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:13:41,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:13:41,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:13:41,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:13:41,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:13:41,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:13:41,396 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:13:41,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:13:41,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:13:41,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:13:41,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:13:41,398 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4349e9f780aa852bf667d29095b5aaef630c7e32a3c0068468fa5a88e5c63f46 [2021-11-07 01:13:41,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:13:41,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:13:41,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:13:41,750 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:13:41,751 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:13:41,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/goblint-regression/04-mutex_47-fun_write.i [2021-11-07 01:13:41,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/data/70fdecbeb/99709bc3b24e428babb089166c227b00/FLAG00ed97d66 [2021-11-07 01:13:42,571 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:13:42,573 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/sv-benchmarks/c/goblint-regression/04-mutex_47-fun_write.i [2021-11-07 01:13:42,599 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/data/70fdecbeb/99709bc3b24e428babb089166c227b00/FLAG00ed97d66 [2021-11-07 01:13:42,785 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/data/70fdecbeb/99709bc3b24e428babb089166c227b00 [2021-11-07 01:13:42,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:13:42,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:13:42,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:13:42,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:13:42,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:13:42,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:13:42" (1/1) ... [2021-11-07 01:13:42,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@223e8bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:42, skipping insertion in model container [2021-11-07 01:13:42,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:13:42" (1/1) ... [2021-11-07 01:13:42,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:13:42,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:13:43,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:13:43,563 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:13:43,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:13:43,709 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:13:43,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:43 WrapperNode [2021-11-07 01:13:43,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:13:43,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:13:43,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:13:43,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:13:43,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:43" (1/1) ... [2021-11-07 01:13:43,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:43" (1/1) ... [2021-11-07 01:13:43,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:13:43,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:13:43,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:13:43,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:13:43,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:43" (1/1) ... [2021-11-07 01:13:43,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:43" (1/1) ... [2021-11-07 01:13:43,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:43" (1/1) ... [2021-11-07 01:13:43,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:43" (1/1) ... [2021-11-07 01:13:43,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:43" (1/1) ... [2021-11-07 01:13:43,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:43" (1/1) ... [2021-11-07 01:13:43,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:43" (1/1) ... [2021-11-07 01:13:43,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:13:43,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:13:43,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:13:43,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:13:43,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:43" (1/1) ... [2021-11-07 01:13:43,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:13:43,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:13:43,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:13:43,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:13:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:13:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:13:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 01:13:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:13:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-07 01:13:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-07 01:13:43,954 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-07 01:13:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:13:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:13:43,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:13:43,956 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 01:13:44,317 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:13:44,317 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-07 01:13:44,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:13:44 BoogieIcfgContainer [2021-11-07 01:13:44,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:13:44,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:13:44,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:13:44,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:13:44,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:13:42" (1/3) ... [2021-11-07 01:13:44,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eda2d5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:13:44, skipping insertion in model container [2021-11-07 01:13:44,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:43" (2/3) ... [2021-11-07 01:13:44,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eda2d5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:13:44, skipping insertion in model container [2021-11-07 01:13:44,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:13:44" (3/3) ... [2021-11-07 01:13:44,329 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_47-fun_write.i [2021-11-07 01:13:44,335 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 01:13:44,335 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:13:44,336 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-07 01:13:44,336 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 01:13:44,374 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,375 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,375 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,375 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,376 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,376 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,376 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,376 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,377 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,378 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,379 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,379 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,379 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,380 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,380 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,381 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,381 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,382 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,382 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,382 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,383 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,384 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,384 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,385 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,386 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,386 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,387 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,387 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,388 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,388 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,388 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,389 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,389 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,390 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,390 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,390 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,390 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,391 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,391 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,398 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,398 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,399 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,399 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,399 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,400 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,400 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,400 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:13:44,411 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-07 01:13:44,476 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:13:44,486 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=FINITE_AUTOMATA, 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 [2021-11-07 01:13:44,486 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 01:13:44,515 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 01:13:44,530 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 69 transitions, 146 flow [2021-11-07 01:13:44,535 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 69 transitions, 146 flow [2021-11-07 01:13:44,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 69 transitions, 146 flow [2021-11-07 01:13:44,597 INFO L129 PetriNetUnfolder]: 0/68 cut-off events. [2021-11-07 01:13:44,597 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-07 01:13:44,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 68 events. 0/68 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-11-07 01:13:44,623 INFO L116 LiptonReduction]: Number of co-enabled transitions 714 [2021-11-07 01:13:48,309 INFO L131 LiptonReduction]: Checked pairs total: 2954 [2021-11-07 01:13:48,309 INFO L133 LiptonReduction]: Total number of compositions: 56 [2021-11-07 01:13:48,318 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 21 transitions, 50 flow [2021-11-07 01:13:48,333 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 77 states, 69 states have (on average 1.9420289855072463) internal successors, (134), 76 states have internal predecessors, (134), 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) [2021-11-07 01:13:48,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 69 states have (on average 1.9420289855072463) internal successors, (134), 76 states have internal predecessors, (134), 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) [2021-11-07 01:13:48,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-07 01:13:48,341 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:48,341 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-07 01:13:48,342 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-11-07 01:13:48,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:48,348 INFO L85 PathProgramCache]: Analyzing trace with hash 236682, now seen corresponding path program 1 times [2021-11-07 01:13:48,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:13:48,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979407641] [2021-11-07 01:13:48,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:48,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:13:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:48,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:48,555 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:13:48,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979407641] [2021-11-07 01:13:48,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979407641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:48,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:48,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-07 01:13:48,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492901911] [2021-11-07 01:13:48,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:13:48,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:13:48,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:13:48,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:13:48,586 INFO L87 Difference]: Start difference. First operand has 77 states, 69 states have (on average 1.9420289855072463) internal successors, (134), 76 states have internal predecessors, (134), 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) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-07 01:13:48,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:13:48,608 INFO L93 Difference]: Finished difference Result 70 states and 121 transitions. [2021-11-07 01:13:48,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:13:48,610 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2021-11-07 01:13:48,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:13:48,628 INFO L225 Difference]: With dead ends: 70 [2021-11-07 01:13:48,629 INFO L226 Difference]: Without dead ends: 68 [2021-11-07 01:13:48,630 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:13:48,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-07 01:13:48,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-07 01:13:48,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 63 states have (on average 1.8571428571428572) internal successors, (117), 67 states have internal predecessors, (117), 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) [2021-11-07 01:13:48,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 117 transitions. [2021-11-07 01:13:48,692 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 117 transitions. Word has length 3 [2021-11-07 01:13:48,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:13:48,693 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 117 transitions. [2021-11-07 01:13:48,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-07 01:13:48,694 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 117 transitions. [2021-11-07 01:13:48,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 01:13:48,694 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:48,695 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 01:13:48,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:13:48,695 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-11-07 01:13:48,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:48,696 INFO L85 PathProgramCache]: Analyzing trace with hash 227425602, now seen corresponding path program 1 times [2021-11-07 01:13:48,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:13:48,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536994049] [2021-11-07 01:13:48,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:48,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:13:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:48,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:48,797 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:13:48,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536994049] [2021-11-07 01:13:48,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536994049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:48,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:48,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 01:13:48,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838797885] [2021-11-07 01:13:48,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:13:48,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:13:48,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:13:48,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:13:48,815 INFO L87 Difference]: Start difference. First operand 68 states and 117 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-07 01:13:48,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:13:48,848 INFO L93 Difference]: Finished difference Result 77 states and 132 transitions. [2021-11-07 01:13:48,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:13:48,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2021-11-07 01:13:48,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:13:48,851 INFO L225 Difference]: With dead ends: 77 [2021-11-07 01:13:48,852 INFO L226 Difference]: Without dead ends: 77 [2021-11-07 01:13:48,852 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:13:48,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-07 01:13:48,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 69. [2021-11-07 01:13:48,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 64 states have (on average 1.84375) internal successors, (118), 68 states have internal predecessors, (118), 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) [2021-11-07 01:13:48,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 118 transitions. [2021-11-07 01:13:48,864 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 118 transitions. Word has length 5 [2021-11-07 01:13:48,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:13:48,864 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 118 transitions. [2021-11-07 01:13:48,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-07 01:13:48,865 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 118 transitions. [2021-11-07 01:13:48,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 01:13:48,866 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:48,866 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 01:13:48,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 01:13:48,867 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-11-07 01:13:48,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:48,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1539200048, now seen corresponding path program 1 times [2021-11-07 01:13:48,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:13:48,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197644971] [2021-11-07 01:13:48,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:48,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:13:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:48,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:48,917 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:13:48,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197644971] [2021-11-07 01:13:48,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197644971] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:48,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:48,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 01:13:48,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554357070] [2021-11-07 01:13:48,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:13:48,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:13:48,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:13:48,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:13:48,925 INFO L87 Difference]: Start difference. First operand 69 states and 118 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-07 01:13:48,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:13:48,950 INFO L93 Difference]: Finished difference Result 71 states and 119 transitions. [2021-11-07 01:13:48,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:13:48,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2021-11-07 01:13:48,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:13:48,954 INFO L225 Difference]: With dead ends: 71 [2021-11-07 01:13:48,954 INFO L226 Difference]: Without dead ends: 63 [2021-11-07 01:13:48,955 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:13:48,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-07 01:13:48,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-11-07 01:13:48,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 59 states have (on average 1.7796610169491525) internal successors, (105), 62 states have internal predecessors, (105), 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) [2021-11-07 01:13:48,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 105 transitions. [2021-11-07 01:13:48,965 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 105 transitions. Word has length 6 [2021-11-07 01:13:48,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:13:48,965 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 105 transitions. [2021-11-07 01:13:48,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-07 01:13:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 105 transitions. [2021-11-07 01:13:48,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:13:48,967 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:48,967 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:13:48,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 01:13:48,968 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-11-07 01:13:48,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:48,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1710197239, now seen corresponding path program 1 times [2021-11-07 01:13:48,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:13:48,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196020188] [2021-11-07 01:13:48,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:48,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:13:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:13:49,024 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:13:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:13:49,079 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 01:13:49,079 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:13:49,080 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:13:49,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:13:49,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:13:49,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 01:13:49,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:13:49,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:13:49,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 01:13:49,087 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-07 01:13:49,094 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 01:13:49,094 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:13:49,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:13:49 BasicIcfg [2021-11-07 01:13:49,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:13:49,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:13:49,122 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:13:49,122 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:13:49,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:13:44" (3/4) ... [2021-11-07 01:13:49,126 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 01:13:49,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:13:49,129 INFO L168 Benchmark]: Toolchain (without parser) took 6337.69 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 70.7 MB in the beginning and 66.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:13:49,130 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 109.1 MB. Free memory was 79.5 MB in the beginning and 79.5 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:13:49,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 914.60 ms. Allocated memory is still 109.1 MB. Free memory was 70.6 MB in the beginning and 67.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:13:49,131 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.90 ms. Allocated memory is still 109.1 MB. Free memory was 67.2 MB in the beginning and 65.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:13:49,132 INFO L168 Benchmark]: Boogie Preprocessor took 56.60 ms. Allocated memory is still 109.1 MB. Free memory was 64.5 MB in the beginning and 63.6 MB in the end (delta: 954.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:13:49,133 INFO L168 Benchmark]: RCFGBuilder took 460.48 ms. Allocated memory is still 109.1 MB. Free memory was 63.6 MB in the beginning and 51.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:13:49,134 INFO L168 Benchmark]: TraceAbstraction took 4799.85 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 51.1 MB in the beginning and 66.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:13:49,134 INFO L168 Benchmark]: Witness Printer took 4.71 ms. Allocated memory is still 132.1 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:13:49,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 109.1 MB. Free memory was 79.5 MB in the beginning and 79.5 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 914.60 ms. Allocated memory is still 109.1 MB. Free memory was 70.6 MB in the beginning and 67.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.90 ms. Allocated memory is still 109.1 MB. Free memory was 67.2 MB in the beginning and 65.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.60 ms. Allocated memory is still 109.1 MB. Free memory was 64.5 MB in the beginning and 63.6 MB in the end (delta: 954.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 460.48 ms. Allocated memory is still 109.1 MB. Free memory was 63.6 MB in the beginning and 51.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4799.85 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 51.1 MB in the beginning and 66.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.71 ms. Allocated memory is still 132.1 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 73 PlacesBefore, 25 PlacesAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 714 CoEnabledTransitionPairs, 10 FixpointIterations, 26 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 56 TotalNumberOfCompositions, 2954 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1581, positive: 1292, positive conditional: 0, positive unconditional: 1292, negative: 289, negative conditional: 0, negative unconditional: 289, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 554, positive: 512, positive conditional: 0, positive unconditional: 512, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 554, positive: 493, positive conditional: 0, positive unconditional: 493, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 61, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 182, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 140, negative conditional: 0, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1581, positive: 780, positive conditional: 0, positive unconditional: 780, negative: 247, negative conditional: 0, negative unconditional: 247, unknown: 554, unknown conditional: 0, unknown unconditional: 554] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - 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: 933]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L930] 0 pthread_t id; [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [mutex1={3:0}, mutex2={6:0}, myglobal=0] [L933] 0 myglobal+1 VAL [mutex1={3:0}, mutex2={6:0}, myglobal=0] [L921] 1 return 5; [L925] 1 myglobal=f() VAL [mutex1={3:0}, mutex2={6:0}, myglobal=5] [L933] 0 myglobal+1 VAL [mutex1={3:0}, mutex2={6:0}, myglobal=5] Now there is a data race on ~myglobal~0 between C: myglobal=f() [925] and C: myglobal+1 [933] - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 935]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: 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: 925]: 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, 89 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 14 SDslu, 15 SDs, 0 SdLazy, 27 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 01:13:49,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1c0397-1b20-4f9c-9221-37138868e8a5/bin/utaipan-UUZaoUuFF8/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE