./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_08-glob_fld_2_rc.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_fbac9911-466d-44d0-a4d0-4bb52c85d354/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbac9911-466d-44d0-a4d0-4bb52c85d354/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_fbac9911-466d-44d0-a4d0-4bb52c85d354/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbac9911-466d-44d0-a4d0-4bb52c85d354/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_08-glob_fld_2_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbac9911-466d-44d0-a4d0-4bb52c85d354/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_fbac9911-466d-44d0-a4d0-4bb52c85d354/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 9df11a052e2c7230e1edfb210274e89333c68b57c4137552a35d25fe623d9561 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:28:01,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:28:01,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:28:01,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:28:01,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:28:01,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:28:01,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:28:01,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:28:01,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:28:01,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:28:01,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:28:01,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:28:01,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:28:01,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:28:01,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:28:01,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:28:01,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:28:01,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:28:01,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:28:01,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:28:01,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:28:01,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:28:01,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:28:01,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:28:01,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:28:01,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:28:01,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:28:01,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:28:01,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:28:01,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:28:01,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:28:01,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:28:01,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:28:01,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:28:01,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:28:01,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:28:01,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:28:01,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:28:01,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:28:01,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:28:01,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:28:01,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbac9911-466d-44d0-a4d0-4bb52c85d354/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-20 07:28:01,423 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:28:01,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:28:01,424 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:28:01,427 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:28:01,431 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:28:01,431 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:28:01,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:28:01,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:28:01,432 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:28:01,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:28:01,434 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:28:01,434 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:28:01,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:28:01,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:28:01,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:28:01,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:28:01,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:28:01,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:28:01,435 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-20 07:28:01,435 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:28:01,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:28:01,436 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:28:01,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:28:01,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:28:01,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:28:01,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:28:01,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:28:01,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:28:01,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:28:01,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:28:01,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:28:01,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:28:01,438 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:28:01,438 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:28:01,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:28:01,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:28:01,439 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_fbac9911-466d-44d0-a4d0-4bb52c85d354/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbac9911-466d-44d0-a4d0-4bb52c85d354/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9df11a052e2c7230e1edfb210274e89333c68b57c4137552a35d25fe623d9561 [2021-11-20 07:28:01,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:28:01,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:28:01,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:28:01,751 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:28:01,752 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:28:01,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbac9911-466d-44d0-a4d0-4bb52c85d354/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/goblint-regression/05-lval_ls_08-glob_fld_2_rc.i [2021-11-20 07:28:01,840 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbac9911-466d-44d0-a4d0-4bb52c85d354/bin/uautomizer-DQz5hQGWxF/data/a331eead8/dd881832e6614ba6a8432b7d04c67220/FLAGdfc3b38a4 [2021-11-20 07:28:02,446 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:28:02,449 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbac9911-466d-44d0-a4d0-4bb52c85d354/sv-benchmarks/c/goblint-regression/05-lval_ls_08-glob_fld_2_rc.i [2021-11-20 07:28:02,473 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbac9911-466d-44d0-a4d0-4bb52c85d354/bin/uautomizer-DQz5hQGWxF/data/a331eead8/dd881832e6614ba6a8432b7d04c67220/FLAGdfc3b38a4 [2021-11-20 07:28:02,698 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbac9911-466d-44d0-a4d0-4bb52c85d354/bin/uautomizer-DQz5hQGWxF/data/a331eead8/dd881832e6614ba6a8432b7d04c67220 [2021-11-20 07:28:02,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:28:02,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:28:02,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:28:02,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:28:02,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:28:02,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:28:02" (1/1) ... [2021-11-20 07:28:02,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ec82c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:28:02, skipping insertion in model container [2021-11-20 07:28:02,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:28:02" (1/1) ... [2021-11-20 07:28:02,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:28:02,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:28:03,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:28:03,143 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:28:03,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:28:03,215 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:28:03,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:28:03 WrapperNode [2021-11-20 07:28:03,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:28:03,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:28:03,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:28:03,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:28:03,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:28:03" (1/1) ... [2021-11-20 07:28:03,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:28:03" (1/1) ... [2021-11-20 07:28:03,260 INFO L137 Inliner]: procedures = 161, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2021-11-20 07:28:03,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:28:03,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:28:03,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:28:03,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:28:03,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:28:03" (1/1) ... [2021-11-20 07:28:03,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:28:03" (1/1) ... [2021-11-20 07:28:03,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:28:03" (1/1) ... [2021-11-20 07:28:03,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:28:03" (1/1) ... [2021-11-20 07:28:03,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:28:03" (1/1) ... [2021-11-20 07:28:03,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:28:03" (1/1) ... [2021-11-20 07:28:03,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:28:03" (1/1) ... [2021-11-20 07:28:03,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:28:03,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:28:03,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:28:03,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:28:03,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:28:03" (1/1) ... [2021-11-20 07:28:03,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:28:03,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbac9911-466d-44d0-a4d0-4bb52c85d354/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:28:03,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbac9911-466d-44d0-a4d0-4bb52c85d354/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:28:03,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbac9911-466d-44d0-a4d0-4bb52c85d354/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:28:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:28:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:28:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:28:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:28:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-20 07:28:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-20 07:28:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:28:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:28:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:28:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:28:03,401 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 07:28:03,521 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:28:03,523 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:28:03,769 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:28:03,777 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:28:03,779 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:28:03,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:28:03 BoogieIcfgContainer [2021-11-20 07:28:03,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:28:03,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:28:03,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:28:03,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:28:03,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:28:02" (1/3) ... [2021-11-20 07:28:03,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617ab7e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:28:03, skipping insertion in model container [2021-11-20 07:28:03,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:28:03" (2/3) ... [2021-11-20 07:28:03,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617ab7e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:28:03, skipping insertion in model container [2021-11-20 07:28:03,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:28:03" (3/3) ... [2021-11-20 07:28:03,792 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_08-glob_fld_2_rc.i [2021-11-20 07:28:03,797 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 07:28:03,797 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:28:03,798 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-20 07:28:03,798 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 07:28:03,826 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,826 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,827 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,827 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,827 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,827 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,828 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,828 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,828 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,828 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,829 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,830 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,830 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,830 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,830 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,831 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,831 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,831 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,832 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,832 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,832 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,833 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,833 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,833 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,834 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,834 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,834 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,835 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,835 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,835 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,839 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,839 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,840 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,840 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,850 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,850 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,853 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,854 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,854 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,855 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,855 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,858 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,860 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,860 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:28:03,861 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-20 07:28:03,904 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:28:03,912 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 07:28:03,912 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-20 07:28:03,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 99 transitions, 208 flow [2021-11-20 07:28:03,977 INFO L129 PetriNetUnfolder]: 0/97 cut-off events. [2021-11-20 07:28:03,977 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 07:28:03,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 0/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 137 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-11-20 07:28:03,980 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 99 transitions, 208 flow [2021-11-20 07:28:03,985 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 97 transitions, 200 flow [2021-11-20 07:28:03,996 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-11-20 07:28:03,996 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 07:28:03,996 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:28:03,997 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] [2021-11-20 07:28:03,998 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-20 07:28:04,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:28:04,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1717480794, now seen corresponding path program 1 times [2021-11-20 07:28:04,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:28:04,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842447581] [2021-11-20 07:28:04,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:28:04,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:28:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:04,313 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 07:28:04,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:28:04,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842447581] [2021-11-20 07:28:04,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842447581] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:28:04,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:28:04,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:28:04,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326260865] [2021-11-20 07:28:04,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:28:04,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:28:04,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:28:04,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:28:04,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:28:04,358 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 99 [2021-11-20 07:28:04,362 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 97 transitions, 200 flow. Second operand has 6 states, 6 states have (on average 53.666666666666664) internal successors, (322), 6 states have internal predecessors, (322), 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 07:28:04,363 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:28:04,363 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 99 [2021-11-20 07:28:04,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:28:07,542 INFO L129 PetriNetUnfolder]: 10312/20433 cut-off events. [2021-11-20 07:28:07,542 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-11-20 07:28:07,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36526 conditions, 20433 events. 10312/20433 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 179029 event pairs, 2955 based on Foata normal form. 0/18098 useless extension candidates. Maximal degree in co-relation 36498. Up to 6352 conditions per place. [2021-11-20 07:28:07,760 INFO L132 encePairwiseOnDemand]: 77/99 looper letters, 175 selfloop transitions, 42 changer transitions 0/267 dead transitions. [2021-11-20 07:28:07,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 267 transitions, 986 flow [2021-11-20 07:28:07,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:28:07,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:28:07,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 531 transitions. [2021-11-20 07:28:07,786 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8939393939393939 [2021-11-20 07:28:07,787 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 531 transitions. [2021-11-20 07:28:07,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 531 transitions. [2021-11-20 07:28:07,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:28:07,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 531 transitions. [2021-11-20 07:28:07,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.5) internal successors, (531), 6 states have internal predecessors, (531), 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 07:28:07,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 07:28:07,813 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 07:28:07,815 INFO L186 Difference]: Start difference. First operand has 104 places, 97 transitions, 200 flow. Second operand 6 states and 531 transitions. [2021-11-20 07:28:07,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 267 transitions, 986 flow [2021-11-20 07:28:07,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 267 transitions, 980 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-20 07:28:07,836 INFO L242 Difference]: Finished difference. Result has 112 places, 143 transitions, 514 flow [2021-11-20 07:28:07,839 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=514, PETRI_PLACES=112, PETRI_TRANSITIONS=143} [2021-11-20 07:28:07,845 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 8 predicate places. [2021-11-20 07:28:07,846 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 143 transitions, 514 flow [2021-11-20 07:28:07,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.666666666666664) internal successors, (322), 6 states have internal predecessors, (322), 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 07:28:07,847 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:28:07,847 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] [2021-11-20 07:28:07,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:28:07,848 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-20 07:28:07,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:28:07,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1637372685, now seen corresponding path program 1 times [2021-11-20 07:28:07,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:28:07,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272763949] [2021-11-20 07:28:07,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:28:07,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:28:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:08,091 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 07:28:08,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:28:08,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272763949] [2021-11-20 07:28:08,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272763949] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:28:08,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:28:08,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:28:08,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544247911] [2021-11-20 07:28:08,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:28:08,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:28:08,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:28:08,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:28:08,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:28:08,100 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 99 [2021-11-20 07:28:08,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 143 transitions, 514 flow. Second operand has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 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 07:28:08,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:28:08,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 99 [2021-11-20 07:28:08,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:28:11,381 INFO L129 PetriNetUnfolder]: 9600/19766 cut-off events. [2021-11-20 07:28:11,382 INFO L130 PetriNetUnfolder]: For 11987/11987 co-relation queries the response was YES. [2021-11-20 07:28:11,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46152 conditions, 19766 events. 9600/19766 cut-off events. For 11987/11987 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 177834 event pairs, 4048 based on Foata normal form. 0/19376 useless extension candidates. Maximal degree in co-relation 46121. Up to 8402 conditions per place. [2021-11-20 07:28:11,560 INFO L132 encePairwiseOnDemand]: 93/99 looper letters, 383 selfloop transitions, 5 changer transitions 0/438 dead transitions. [2021-11-20 07:28:11,560 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 438 transitions, 2776 flow [2021-11-20 07:28:11,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:28:11,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:28:11,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 471 transitions. [2021-11-20 07:28:11,563 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7929292929292929 [2021-11-20 07:28:11,564 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 471 transitions. [2021-11-20 07:28:11,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 471 transitions. [2021-11-20 07:28:11,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:28:11,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 471 transitions. [2021-11-20 07:28:11,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 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 07:28:11,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 07:28:11,569 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 07:28:11,569 INFO L186 Difference]: Start difference. First operand has 112 places, 143 transitions, 514 flow. Second operand 6 states and 471 transitions. [2021-11-20 07:28:11,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 438 transitions, 2776 flow [2021-11-20 07:28:11,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 438 transitions, 2776 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-20 07:28:11,601 INFO L242 Difference]: Finished difference. Result has 116 places, 142 transitions, 522 flow [2021-11-20 07:28:11,602 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=522, PETRI_PLACES=116, PETRI_TRANSITIONS=142} [2021-11-20 07:28:11,603 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 12 predicate places. [2021-11-20 07:28:11,603 INFO L470 AbstractCegarLoop]: Abstraction has has 116 places, 142 transitions, 522 flow [2021-11-20 07:28:11,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 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 07:28:11,603 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:28:11,604 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] [2021-11-20 07:28:11,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:28:11,605 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-20 07:28:11,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:28:11,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1794345567, now seen corresponding path program 1 times [2021-11-20 07:28:11,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:28:11,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021867263] [2021-11-20 07:28:11,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:28:11,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:28:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:11,751 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 07:28:11,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:28:11,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021867263] [2021-11-20 07:28:11,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021867263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:28:11,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:28:11,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:28:11,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581211149] [2021-11-20 07:28:11,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:28:11,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:28:11,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:28:11,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:28:11,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:28:11,755 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 99 [2021-11-20 07:28:11,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 142 transitions, 522 flow. Second operand has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 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 07:28:11,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:28:11,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 99 [2021-11-20 07:28:11,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:28:15,498 INFO L129 PetriNetUnfolder]: 14399/28083 cut-off events. [2021-11-20 07:28:15,499 INFO L130 PetriNetUnfolder]: For 13809/13827 co-relation queries the response was YES. [2021-11-20 07:28:15,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68902 conditions, 28083 events. 14399/28083 cut-off events. For 13809/13827 co-relation queries the response was YES. Maximal size of possible extension queue 782. Compared 255114 event pairs, 7038 based on Foata normal form. 341/27821 useless extension candidates. Maximal degree in co-relation 68870. Up to 14920 conditions per place. [2021-11-20 07:28:15,784 INFO L132 encePairwiseOnDemand]: 82/99 looper letters, 188 selfloop transitions, 53 changer transitions 0/289 dead transitions. [2021-11-20 07:28:15,784 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 289 transitions, 1540 flow [2021-11-20 07:28:15,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:28:15,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:28:15,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 481 transitions. [2021-11-20 07:28:15,787 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8097643097643098 [2021-11-20 07:28:15,787 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 481 transitions. [2021-11-20 07:28:15,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 481 transitions. [2021-11-20 07:28:15,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:28:15,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 481 transitions. [2021-11-20 07:28:15,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 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 07:28:15,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 07:28:15,792 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 07:28:15,793 INFO L186 Difference]: Start difference. First operand has 116 places, 142 transitions, 522 flow. Second operand 6 states and 481 transitions. [2021-11-20 07:28:15,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 289 transitions, 1540 flow [2021-11-20 07:28:15,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 289 transitions, 1490 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-11-20 07:28:15,811 INFO L242 Difference]: Finished difference. Result has 121 places, 195 transitions, 1028 flow [2021-11-20 07:28:15,812 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1028, PETRI_PLACES=121, PETRI_TRANSITIONS=195} [2021-11-20 07:28:15,814 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 17 predicate places. [2021-11-20 07:28:15,815 INFO L470 AbstractCegarLoop]: Abstraction has has 121 places, 195 transitions, 1028 flow [2021-11-20 07:28:15,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 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 07:28:15,815 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:28:15,816 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] [2021-11-20 07:28:15,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:28:15,816 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-20 07:28:15,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:28:15,818 INFO L85 PathProgramCache]: Analyzing trace with hash 517297037, now seen corresponding path program 1 times [2021-11-20 07:28:15,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:28:15,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572510277] [2021-11-20 07:28:15,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:28:15,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:28:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:15,975 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 07:28:15,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:28:15,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572510277] [2021-11-20 07:28:15,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572510277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:28:15,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:28:15,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:28:15,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41900572] [2021-11-20 07:28:15,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:28:15,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:28:15,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:28:15,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:28:15,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:28:15,980 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 99 [2021-11-20 07:28:15,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 195 transitions, 1028 flow. Second operand has 6 states, 6 states have (on average 53.0) internal successors, (318), 6 states have internal predecessors, (318), 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 07:28:15,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:28:15,981 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 99 [2021-11-20 07:28:15,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:28:20,233 INFO L129 PetriNetUnfolder]: 17969/33777 cut-off events. [2021-11-20 07:28:20,233 INFO L130 PetriNetUnfolder]: For 33542/33563 co-relation queries the response was YES. [2021-11-20 07:28:20,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95687 conditions, 33777 events. 17969/33777 cut-off events. For 33542/33563 co-relation queries the response was YES. Maximal size of possible extension queue 988. Compared 305495 event pairs, 8803 based on Foata normal form. 392/33343 useless extension candidates. Maximal degree in co-relation 95651. Up to 19243 conditions per place. [2021-11-20 07:28:20,583 INFO L132 encePairwiseOnDemand]: 82/99 looper letters, 229 selfloop transitions, 68 changer transitions 0/349 dead transitions. [2021-11-20 07:28:20,583 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 349 transitions, 2294 flow [2021-11-20 07:28:20,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:28:20,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:28:20,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 477 transitions. [2021-11-20 07:28:20,587 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.803030303030303 [2021-11-20 07:28:20,588 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 477 transitions. [2021-11-20 07:28:20,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 477 transitions. [2021-11-20 07:28:20,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:28:20,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 477 transitions. [2021-11-20 07:28:20,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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 07:28:20,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 07:28:20,594 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 07:28:20,595 INFO L186 Difference]: Start difference. First operand has 121 places, 195 transitions, 1028 flow. Second operand 6 states and 477 transitions. [2021-11-20 07:28:20,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 349 transitions, 2294 flow [2021-11-20 07:28:20,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 349 transitions, 2286 flow, removed 4 selfloop flow, removed 0 redundant places. [2021-11-20 07:28:20,822 INFO L242 Difference]: Finished difference. Result has 131 places, 256 transitions, 1740 flow [2021-11-20 07:28:20,823 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1740, PETRI_PLACES=131, PETRI_TRANSITIONS=256} [2021-11-20 07:28:20,824 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 27 predicate places. [2021-11-20 07:28:20,824 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 256 transitions, 1740 flow [2021-11-20 07:28:20,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.0) internal successors, (318), 6 states have internal predecessors, (318), 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 07:28:20,824 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:28:20,825 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] [2021-11-20 07:28:20,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:28:20,825 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-20 07:28:20,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:28:20,826 INFO L85 PathProgramCache]: Analyzing trace with hash -372314589, now seen corresponding path program 1 times [2021-11-20 07:28:20,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:28:20,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624247352] [2021-11-20 07:28:20,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:28:20,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:28:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:20,967 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 07:28:20,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:28:20,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624247352] [2021-11-20 07:28:20,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624247352] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:28:20,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:28:20,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:28:20,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086686786] [2021-11-20 07:28:20,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:28:20,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:28:20,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:28:20,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:28:20,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:28:20,972 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 99 [2021-11-20 07:28:20,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 256 transitions, 1740 flow. Second operand has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 6 states have internal predecessors, (313), 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 07:28:20,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:28:20,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 99 [2021-11-20 07:28:20,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:28:25,544 INFO L129 PetriNetUnfolder]: 17259/32399 cut-off events. [2021-11-20 07:28:25,545 INFO L130 PetriNetUnfolder]: For 75811/75884 co-relation queries the response was YES. [2021-11-20 07:28:25,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108233 conditions, 32399 events. 17259/32399 cut-off events. For 75811/75884 co-relation queries the response was YES. Maximal size of possible extension queue 908. Compared 294082 event pairs, 7397 based on Foata normal form. 0/32360 useless extension candidates. Maximal degree in co-relation 108191. Up to 17480 conditions per place. [2021-11-20 07:28:25,793 INFO L132 encePairwiseOnDemand]: 93/99 looper letters, 745 selfloop transitions, 5 changer transitions 172/975 dead transitions. [2021-11-20 07:28:25,793 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 975 transitions, 9770 flow [2021-11-20 07:28:25,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:28:25,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:28:25,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 455 transitions. [2021-11-20 07:28:25,796 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.765993265993266 [2021-11-20 07:28:25,796 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 455 transitions. [2021-11-20 07:28:25,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 455 transitions. [2021-11-20 07:28:25,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:28:25,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 455 transitions. [2021-11-20 07:28:25,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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 07:28:25,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 07:28:25,801 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 07:28:25,801 INFO L186 Difference]: Start difference. First operand has 131 places, 256 transitions, 1740 flow. Second operand 6 states and 455 transitions. [2021-11-20 07:28:25,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 975 transitions, 9770 flow [2021-11-20 07:28:26,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 975 transitions, 9690 flow, removed 40 selfloop flow, removed 0 redundant places. [2021-11-20 07:28:26,268 INFO L242 Difference]: Finished difference. Result has 135 places, 219 transitions, 1436 flow [2021-11-20 07:28:26,269 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=1722, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1436, PETRI_PLACES=135, PETRI_TRANSITIONS=219} [2021-11-20 07:28:26,270 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 31 predicate places. [2021-11-20 07:28:26,270 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 219 transitions, 1436 flow [2021-11-20 07:28:26,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 6 states have internal predecessors, (313), 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 07:28:26,271 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:28:26,271 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 07:28:26,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:28:26,271 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-20 07:28:26,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:28:26,272 INFO L85 PathProgramCache]: Analyzing trace with hash 118850398, now seen corresponding path program 1 times [2021-11-20 07:28:26,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:28:26,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507584099] [2021-11-20 07:28:26,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:28:26,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:28:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:28:26,293 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:28:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:28:26,352 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:28:26,352 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 07:28:26,353 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2021-11-20 07:28:26,357 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2021-11-20 07:28:26,358 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2021-11-20 07:28:26,358 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (6 of 10 remaining) [2021-11-20 07:28:26,358 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (5 of 10 remaining) [2021-11-20 07:28:26,358 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2021-11-20 07:28:26,359 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2021-11-20 07:28:26,359 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2021-11-20 07:28:26,363 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2021-11-20 07:28:26,363 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2021-11-20 07:28:26,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 07:28:26,370 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-20 07:28:26,376 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-20 07:28:26,376 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:28:26,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:28:26 BasicIcfg [2021-11-20 07:28:26,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:28:26,442 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:28:26,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:28:26,443 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:28:26,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:28:03" (3/4) ... [2021-11-20 07:28:26,446 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:28:26,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:28:26,447 INFO L158 Benchmark]: Toolchain (without parser) took 23742.56ms. Allocated memory was 136.3MB in the beginning and 8.9GB in the end (delta: 8.8GB). Free memory was 97.3MB in the beginning and 7.8GB in the end (delta: -7.7GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2021-11-20 07:28:26,447 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory was 107.8MB in the beginning and 107.8MB in the end (delta: 30.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:28:26,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.25ms. Allocated memory is still 136.3MB. Free memory was 97.1MB in the beginning and 99.4MB in the end (delta: -2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:28:26,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.79ms. Allocated memory is still 136.3MB. Free memory was 99.4MB in the beginning and 97.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:28:26,449 INFO L158 Benchmark]: Boogie Preprocessor took 27.38ms. Allocated memory is still 136.3MB. Free memory was 97.2MB in the beginning and 95.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:28:26,449 INFO L158 Benchmark]: RCFGBuilder took 492.77ms. Allocated memory is still 136.3MB. Free memory was 95.8MB in the beginning and 83.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 07:28:26,450 INFO L158 Benchmark]: TraceAbstraction took 22657.60ms. Allocated memory was 136.3MB in the beginning and 8.9GB in the end (delta: 8.8GB). Free memory was 82.6MB in the beginning and 7.8GB in the end (delta: -7.7GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2021-11-20 07:28:26,450 INFO L158 Benchmark]: Witness Printer took 3.66ms. Allocated memory is still 8.9GB. Free memory is still 7.8GB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:28:26,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory was 107.8MB in the beginning and 107.8MB in the end (delta: 30.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 509.25ms. Allocated memory is still 136.3MB. Free memory was 97.1MB in the beginning and 99.4MB in the end (delta: -2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.79ms. Allocated memory is still 136.3MB. Free memory was 99.4MB in the beginning and 97.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.38ms. Allocated memory is still 136.3MB. Free memory was 97.2MB in the beginning and 95.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 492.77ms. Allocated memory is still 136.3MB. Free memory was 95.8MB in the beginning and 83.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 22657.60ms. Allocated memory was 136.3MB in the beginning and 8.9GB in the end (delta: 8.8GB). Free memory was 82.6MB in the beginning and 7.8GB in the end (delta: -7.7GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 3.66ms. Allocated memory is still 8.9GB. Free memory is still 7.8GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 684]: Data race detected Data race detected The following path leads to a data race: [L679-L682] 0 struct { int x; int y; } data; VAL [data={1:0}] [L688] 0 pthread_t id, id2; VAL [data={1:0}, id={5:0}, id={6:0}] [L689] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, id={6:0}, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L690] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, id={6:0}, id={5:0}, pthread_create(&id2, ((void *)0), t_fun, ((void *)0))=0] [L684] 2 data.x VAL [arg={0:0}, arg={0:0}, data={1:0}, data.x=0] [L684] EXPR 1 data.x VAL [arg={0:0}, arg={0:0}, data={1:0}, data.x=0] [L684] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data.x=0, data.x++=9data.x++=0] Now there is a data race (on the heap) between C: data.x++ [684] and C: data.x++ [684] - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: 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: 689]: 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: 684]: 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 4 procedures, 125 locations, 10 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: 22.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 263 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 263 mSDsluCounter, 195 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 344 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1573 IncrementalHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 344 mSolverCounterUnsat, 195 mSDtfsCounter, 1573 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1740occurred in iteration=4, InterpolantAutomatonStates: 30, 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, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 211 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 735 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 07:28:26,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbac9911-466d-44d0-a4d0-4bb52c85d354/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE