./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-1_2b-join.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_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/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_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_2b-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/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_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/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 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:35:45,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:35:45,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:35:45,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:35:45,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:35:45,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:35:45,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:35:45,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:35:45,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:35:45,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:35:45,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:35:45,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:35:45,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:35:45,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:35:45,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:35:45,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:35:45,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:35:45,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:35:45,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:35:45,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:35:46,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:35:46,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:35:46,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:35:46,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:35:46,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:35:46,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:35:46,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:35:46,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:35:46,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:35:46,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:35:46,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:35:46,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:35:46,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:35:46,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:35:46,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:35:46,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:35:46,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:35:46,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:35:46,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:35:46,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:35:46,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:35:46,024 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-20 06:35:46,048 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:35:46,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:35:46,053 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:35:46,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:35:46,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:35:46,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:35:46,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:35:46,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:35:46,058 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:35:46,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:35:46,060 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:35:46,060 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:35:46,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:35:46,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:35:46,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:35:46,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:35:46,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:35:46,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:35:46,061 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-20 06:35:46,062 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:35:46,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:35:46,062 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:35:46,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:35:46,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:35:46,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:35:46,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:35:46,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:35:46,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:35:46,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:35:46,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:35:46,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:35:46,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:35:46,064 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:35:46,065 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:35:46,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:35:46,065 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:35:46,065 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_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 [2021-11-20 06:35:46,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:35:46,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:35:46,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:35:46,347 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:35:46,347 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:35:46,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-races/race-1_2b-join.i [2021-11-20 06:35:46,438 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/bin/uautomizer-DQz5hQGWxF/data/5f72ab70f/bbe17830c3c644a6a0fe072e0153989b/FLAG684d136a8 [2021-11-20 06:35:47,136 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:35:47,137 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/sv-benchmarks/c/ldv-races/race-1_2b-join.i [2021-11-20 06:35:47,170 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/bin/uautomizer-DQz5hQGWxF/data/5f72ab70f/bbe17830c3c644a6a0fe072e0153989b/FLAG684d136a8 [2021-11-20 06:35:47,336 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/bin/uautomizer-DQz5hQGWxF/data/5f72ab70f/bbe17830c3c644a6a0fe072e0153989b [2021-11-20 06:35:47,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:35:47,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:35:47,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:35:47,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:35:47,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:35:47,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:35:47" (1/1) ... [2021-11-20 06:35:47,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eb13e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:47, skipping insertion in model container [2021-11-20 06:35:47,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:35:47" (1/1) ... [2021-11-20 06:35:47,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:35:47,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:35:48,150 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/sv-benchmarks/c/ldv-races/race-1_2b-join.i[76069,76082] [2021-11-20 06:35:48,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:35:48,187 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:35:48,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/sv-benchmarks/c/ldv-races/race-1_2b-join.i[76069,76082] [2021-11-20 06:35:48,237 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:35:48,331 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:35:48,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48 WrapperNode [2021-11-20 06:35:48,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:35:48,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:35:48,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:35:48,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:35:48,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,401 INFO L137 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2021-11-20 06:35:48,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:35:48,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:35:48,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:35:48,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:35:48,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:35:48,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:35:48,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:35:48,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:35:48,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:35:48,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:35:48,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:35:48,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:35:48,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:35:48,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:35:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-20 06:35:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:35:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:35:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:35:48,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:35:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:35:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-20 06:35:48,561 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-20 06:35:48,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:35:48,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:35:48,562 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 06:35:48,915 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:35:48,917 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:35:49,216 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:35:49,229 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:35:49,229 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 06:35:49,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:35:49 BoogieIcfgContainer [2021-11-20 06:35:49,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:35:49,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:35:49,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:35:49,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:35:49,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:35:47" (1/3) ... [2021-11-20 06:35:49,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b139fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:35:49, skipping insertion in model container [2021-11-20 06:35:49,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (2/3) ... [2021-11-20 06:35:49,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b139fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:35:49, skipping insertion in model container [2021-11-20 06:35:49,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:35:49" (3/3) ... [2021-11-20 06:35:49,240 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.i [2021-11-20 06:35:49,245 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 06:35:49,245 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:35:49,245 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-20 06:35:49,245 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 06:35:49,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,274 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,274 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,275 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,275 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,276 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,276 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,276 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,276 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,277 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,277 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,277 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,277 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,277 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,278 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,278 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,278 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,278 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,278 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,279 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,279 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,279 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,279 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,284 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,284 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 06:35:49,288 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-20 06:35:49,345 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:35:49,365 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 06:35:49,365 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-11-20 06:35:49,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 151 places, 153 transitions, 314 flow [2021-11-20 06:35:49,475 INFO L129 PetriNetUnfolder]: 5/173 cut-off events. [2021-11-20 06:35:49,476 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 06:35:49,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 173 events. 5/173 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 213 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 93. Up to 3 conditions per place. [2021-11-20 06:35:49,480 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 153 transitions, 314 flow [2021-11-20 06:35:49,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 139 transitions, 284 flow [2021-11-20 06:35:49,502 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-11-20 06:35:49,503 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 06:35:49,503 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:35:49,504 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] [2021-11-20 06:35:49,505 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-20 06:35:49,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:35:49,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1989440496, now seen corresponding path program 1 times [2021-11-20 06:35:49,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:35:49,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773497827] [2021-11-20 06:35:49,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:35:49,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:35:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:49,939 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 06:35:49,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:35:49,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773497827] [2021-11-20 06:35:49,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773497827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:35:49,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:35:49,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:35:49,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236061112] [2021-11-20 06:35:49,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:35:49,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:35:49,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:35:49,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:35:49,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:35:50,000 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2021-11-20 06:35:50,007 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 06:35:50,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:35:50,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2021-11-20 06:35:50,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:35:50,193 INFO L129 PetriNetUnfolder]: 18/293 cut-off events. [2021-11-20 06:35:50,193 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-20 06:35:50,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 293 events. 18/293 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1022 event pairs, 18 based on Foata normal form. 6/262 useless extension candidates. Maximal degree in co-relation 237. Up to 65 conditions per place. [2021-11-20 06:35:50,199 INFO L132 encePairwiseOnDemand]: 147/153 looper letters, 28 selfloop transitions, 2 changer transitions 2/132 dead transitions. [2021-11-20 06:35:50,199 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 132 transitions, 330 flow [2021-11-20 06:35:50,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:35:50,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 06:35:50,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2021-11-20 06:35:50,223 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8126361655773421 [2021-11-20 06:35:50,224 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2021-11-20 06:35:50,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2021-11-20 06:35:50,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:35:50,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2021-11-20 06:35:50,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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 06:35:50,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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 06:35:50,251 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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 06:35:50,253 INFO L186 Difference]: Start difference. First operand has 139 places, 139 transitions, 284 flow. Second operand 3 states and 373 transitions. [2021-11-20 06:35:50,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 132 transitions, 330 flow [2021-11-20 06:35:50,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 132 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-20 06:35:50,273 INFO L242 Difference]: Finished difference. Result has 135 places, 130 transitions, 266 flow [2021-11-20 06:35:50,275 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2021-11-20 06:35:50,279 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, -4 predicate places. [2021-11-20 06:35:50,279 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 266 flow [2021-11-20 06:35:50,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 06:35:50,280 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:35:50,280 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:35:50,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:35:50,281 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-20 06:35:50,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:35:50,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1167796940, now seen corresponding path program 1 times [2021-11-20 06:35:50,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:35:50,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324954152] [2021-11-20 06:35:50,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:35:50,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:35:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:50,401 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 06:35:50,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:35:50,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324954152] [2021-11-20 06:35:50,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324954152] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:35:50,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:35:50,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:35:50,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97719780] [2021-11-20 06:35:50,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:35:50,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:35:50,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:35:50,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:35:50,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:35:50,409 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 153 [2021-11-20 06:35:50,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 130 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 06:35:50,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:35:50,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 153 [2021-11-20 06:35:50,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:35:50,525 INFO L129 PetriNetUnfolder]: 19/303 cut-off events. [2021-11-20 06:35:50,525 INFO L130 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2021-11-20 06:35:50,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 303 events. 19/303 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1084 event pairs, 8 based on Foata normal form. 2/272 useless extension candidates. Maximal degree in co-relation 337. Up to 46 conditions per place. [2021-11-20 06:35:50,527 INFO L132 encePairwiseOnDemand]: 140/153 looper letters, 21 selfloop transitions, 8 changer transitions 3/134 dead transitions. [2021-11-20 06:35:50,527 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 134 transitions, 337 flow [2021-11-20 06:35:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:35:50,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 06:35:50,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2021-11-20 06:35:50,530 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8344226579520697 [2021-11-20 06:35:50,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2021-11-20 06:35:50,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2021-11-20 06:35:50,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:35:50,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2021-11-20 06:35:50,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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 06:35:50,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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 06:35:50,536 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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 06:35:50,536 INFO L186 Difference]: Start difference. First operand has 135 places, 130 transitions, 266 flow. Second operand 3 states and 383 transitions. [2021-11-20 06:35:50,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 134 transitions, 337 flow [2021-11-20 06:35:50,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 134 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-20 06:35:50,542 INFO L242 Difference]: Finished difference. Result has 132 places, 128 transitions, 300 flow [2021-11-20 06:35:50,543 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=132, PETRI_TRANSITIONS=128} [2021-11-20 06:35:50,543 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, -7 predicate places. [2021-11-20 06:35:50,544 INFO L470 AbstractCegarLoop]: Abstraction has has 132 places, 128 transitions, 300 flow [2021-11-20 06:35:50,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 06:35:50,544 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:35:50,545 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:35:50,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:35:50,545 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-20 06:35:50,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:35:50,546 INFO L85 PathProgramCache]: Analyzing trace with hash -466407958, now seen corresponding path program 1 times [2021-11-20 06:35:50,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:35:50,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042366072] [2021-11-20 06:35:50,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:35:50,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:35:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:50,712 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 06:35:50,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:35:50,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042366072] [2021-11-20 06:35:50,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042366072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:35:50,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:35:50,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:35:50,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338198073] [2021-11-20 06:35:50,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:35:50,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:35:50,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:35:50,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:35:50,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:35:50,718 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2021-11-20 06:35:50,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 128 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 06:35:50,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:35:50,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2021-11-20 06:35:50,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:35:50,802 INFO L129 PetriNetUnfolder]: 19/299 cut-off events. [2021-11-20 06:35:50,802 INFO L130 PetriNetUnfolder]: For 41/46 co-relation queries the response was YES. [2021-11-20 06:35:50,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 299 events. 19/299 cut-off events. For 41/46 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1088 event pairs, 12 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 55. Up to 66 conditions per place. [2021-11-20 06:35:50,804 INFO L132 encePairwiseOnDemand]: 150/153 looper letters, 26 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2021-11-20 06:35:50,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 127 transitions, 354 flow [2021-11-20 06:35:50,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:35:50,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 06:35:50,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2021-11-20 06:35:50,807 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7930283224400871 [2021-11-20 06:35:50,807 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2021-11-20 06:35:50,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2021-11-20 06:35:50,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:35:50,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2021-11-20 06:35:50,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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 06:35:50,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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 06:35:50,811 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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 06:35:50,811 INFO L186 Difference]: Start difference. First operand has 132 places, 128 transitions, 300 flow. Second operand 3 states and 364 transitions. [2021-11-20 06:35:50,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 127 transitions, 354 flow [2021-11-20 06:35:50,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 127 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-20 06:35:50,818 INFO L242 Difference]: Finished difference. Result has 128 places, 127 transitions, 286 flow [2021-11-20 06:35:50,818 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=128, PETRI_TRANSITIONS=127} [2021-11-20 06:35:50,821 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, -11 predicate places. [2021-11-20 06:35:50,821 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 127 transitions, 286 flow [2021-11-20 06:35:50,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 06:35:50,822 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:35:50,822 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:35:50,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:35:50,822 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-20 06:35:50,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:35:50,826 INFO L85 PathProgramCache]: Analyzing trace with hash 213811667, now seen corresponding path program 1 times [2021-11-20 06:35:50,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:35:50,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718240053] [2021-11-20 06:35:50,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:35:50,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:35:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:50,950 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 06:35:50,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:35:50,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718240053] [2021-11-20 06:35:50,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718240053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:35:50,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:35:50,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:35:50,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340476507] [2021-11-20 06:35:50,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:35:50,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:35:50,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:35:50,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:35:50,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:35:50,962 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2021-11-20 06:35:50,962 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 127 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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 06:35:50,962 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:35:50,963 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2021-11-20 06:35:50,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:35:51,066 INFO L129 PetriNetUnfolder]: 28/319 cut-off events. [2021-11-20 06:35:51,067 INFO L130 PetriNetUnfolder]: For 18/24 co-relation queries the response was YES. [2021-11-20 06:35:51,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 319 events. 28/319 cut-off events. For 18/24 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1178 event pairs, 13 based on Foata normal form. 2/286 useless extension candidates. Maximal degree in co-relation 398. Up to 73 conditions per place. [2021-11-20 06:35:51,070 INFO L132 encePairwiseOnDemand]: 148/153 looper letters, 28 selfloop transitions, 5 changer transitions 0/132 dead transitions. [2021-11-20 06:35:51,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 132 transitions, 364 flow [2021-11-20 06:35:51,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:35:51,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 06:35:51,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2021-11-20 06:35:51,073 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.803921568627451 [2021-11-20 06:35:51,073 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2021-11-20 06:35:51,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2021-11-20 06:35:51,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:35:51,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2021-11-20 06:35:51,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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 06:35:51,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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 06:35:51,077 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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 06:35:51,077 INFO L186 Difference]: Start difference. First operand has 128 places, 127 transitions, 286 flow. Second operand 3 states and 369 transitions. [2021-11-20 06:35:51,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 132 transitions, 364 flow [2021-11-20 06:35:51,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 132 transitions, 360 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-20 06:35:51,085 INFO L242 Difference]: Finished difference. Result has 130 places, 130 transitions, 318 flow [2021-11-20 06:35:51,085 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=130, PETRI_TRANSITIONS=130} [2021-11-20 06:35:51,087 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, -9 predicate places. [2021-11-20 06:35:51,087 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 130 transitions, 318 flow [2021-11-20 06:35:51,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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 06:35:51,088 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:35:51,088 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:35:51,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:35:51,091 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-20 06:35:51,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:35:51,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2137405271, now seen corresponding path program 1 times [2021-11-20 06:35:51,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:35:51,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476173524] [2021-11-20 06:35:51,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:35:51,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:35:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:51,209 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 06:35:51,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:35:51,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476173524] [2021-11-20 06:35:51,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476173524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:35:51,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:35:51,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:35:51,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177834589] [2021-11-20 06:35:51,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:35:51,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:35:51,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:35:51,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:35:51,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:35:51,213 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 153 [2021-11-20 06:35:51,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 130 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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 06:35:51,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 06:35:51,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 153 [2021-11-20 06:35:51,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 06:35:51,320 INFO L129 PetriNetUnfolder]: 33/405 cut-off events. [2021-11-20 06:35:51,321 INFO L130 PetriNetUnfolder]: For 66/70 co-relation queries the response was YES. [2021-11-20 06:35:51,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 405 events. 33/405 cut-off events. For 66/70 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1854 event pairs, 10 based on Foata normal form. 2/379 useless extension candidates. Maximal degree in co-relation 274. Up to 69 conditions per place. [2021-11-20 06:35:51,325 INFO L132 encePairwiseOnDemand]: 147/153 looper letters, 32 selfloop transitions, 7 changer transitions 0/140 dead transitions. [2021-11-20 06:35:51,325 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 140 transitions, 438 flow [2021-11-20 06:35:51,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:35:51,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 06:35:51,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2021-11-20 06:35:51,327 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2021-11-20 06:35:51,328 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 374 transitions. [2021-11-20 06:35:51,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 374 transitions. [2021-11-20 06:35:51,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:35:51,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 374 transitions. [2021-11-20 06:35:51,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 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 06:35:51,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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 06:35:51,332 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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 06:35:51,332 INFO L186 Difference]: Start difference. First operand has 130 places, 130 transitions, 318 flow. Second operand 3 states and 374 transitions. [2021-11-20 06:35:51,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 140 transitions, 438 flow [2021-11-20 06:35:51,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 140 transitions, 422 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-11-20 06:35:51,340 INFO L242 Difference]: Finished difference. Result has 132 places, 134 transitions, 358 flow [2021-11-20 06:35:51,341 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=132, PETRI_TRANSITIONS=134} [2021-11-20 06:35:51,344 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, -7 predicate places. [2021-11-20 06:35:51,344 INFO L470 AbstractCegarLoop]: Abstraction has has 132 places, 134 transitions, 358 flow [2021-11-20 06:35:51,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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 06:35:51,345 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 06:35:51,345 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:35:51,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:35:51,346 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-20 06:35:51,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:35:51,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1662894128, now seen corresponding path program 1 times [2021-11-20 06:35:51,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:35:51,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871244412] [2021-11-20 06:35:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:35:51,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:35:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:35:51,400 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:35:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:35:51,457 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:35:51,457 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 06:35:51,458 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2021-11-20 06:35:51,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2021-11-20 06:35:51,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2021-11-20 06:35:51,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2021-11-20 06:35:51,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2021-11-20 06:35:51,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2021-11-20 06:35:51,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2021-11-20 06:35:51,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2021-11-20 06:35:51,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2021-11-20 06:35:51,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2021-11-20 06:35:51,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 12 remaining) [2021-11-20 06:35:51,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2021-11-20 06:35:51,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:35:51,468 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-20 06:35:51,475 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-20 06:35:51,475 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:35:51,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:35:51 BasicIcfg [2021-11-20 06:35:51,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:35:51,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:35:51,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:35:51,533 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:35:51,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:35:49" (3/4) ... [2021-11-20 06:35:51,536 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:35:51,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:35:51,537 INFO L158 Benchmark]: Toolchain (without parser) took 4195.97ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 74.4MB in the beginning and 53.2MB in the end (delta: 21.2MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2021-11-20 06:35:51,537 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory was 42.4MB in the beginning and 42.4MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:35:51,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 989.98ms. Allocated memory is still 111.1MB. Free memory was 74.4MB in the beginning and 45.5MB in the end (delta: 28.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-20 06:35:51,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.80ms. Allocated memory is still 111.1MB. Free memory was 45.5MB in the beginning and 41.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 06:35:51,539 INFO L158 Benchmark]: Boogie Preprocessor took 46.78ms. Allocated memory is still 111.1MB. Free memory was 41.8MB in the beginning and 39.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:35:51,539 INFO L158 Benchmark]: RCFGBuilder took 781.99ms. Allocated memory is still 111.1MB. Free memory was 39.8MB in the beginning and 69.0MB in the end (delta: -29.3MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2021-11-20 06:35:51,540 INFO L158 Benchmark]: TraceAbstraction took 2298.65ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 68.4MB in the beginning and 53.2MB in the end (delta: 15.2MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2021-11-20 06:35:51,540 INFO L158 Benchmark]: Witness Printer took 3.47ms. Allocated memory is still 134.2MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:35:51,543 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 83.9MB. Free memory was 42.4MB in the beginning and 42.4MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 989.98ms. Allocated memory is still 111.1MB. Free memory was 74.4MB in the beginning and 45.5MB in the end (delta: 28.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.80ms. Allocated memory is still 111.1MB. Free memory was 45.5MB in the beginning and 41.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.78ms. Allocated memory is still 111.1MB. Free memory was 41.8MB in the beginning and 39.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 781.99ms. Allocated memory is still 111.1MB. Free memory was 39.8MB in the beginning and 69.0MB in the end (delta: -29.3MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2298.65ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 68.4MB in the beginning and 53.2MB in the end (delta: 15.2MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. * Witness Printer took 3.47ms. Allocated memory is still 134.2MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1709]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; VAL [t1={3:0}] [L1695] 0 pthread_mutex_t mutex; VAL [mutex={4:0}, t1={3:0}] [L1696] 0 int pdev; VAL [mutex={4:0}, pdev=0, t1={3:0}] [L1726] CALL 0 module_init() [L1705] 0 pdev = 1 VAL [mutex={4:0}, pdev=1, t1={3:0}] [L1706] EXPR 0 pdev==1 VAL [mutex={4:0}, pdev=1, t1={3:0}] [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={4:0}, pdev=1, t1={3:0}] [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, mutex={4:0}, pdev=1, t1={3:0}] [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, mutex={4:0}, pdev=2, pdev = 2=1152, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, pdev = 6=1150, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, pdev = 2=1152, pdev = 6=1150, t1={3:0}] Now there is a data race on ~pdev~0 between C: pdev = 6 [1699] and C: pdev = 2 [1709] - UnprovableResult [Line: 1699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 162 locations, 12 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: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 109 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 109 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=358occurred in iteration=5, InterpolantAutomatonStates: 15, 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, 0.5s InterpolantComputationTime, 278 NumberOfCodeBlocks, 278 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 224 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 06:35:51,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3995fd48-7f76-4da3-ad12-e7ea3a0ab897/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE