./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:39:43,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:39:43,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:39:43,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:39:43,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:39:43,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:39:43,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:39:43,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:39:43,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:39:43,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:39:43,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:39:43,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:39:43,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:39:43,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:39:43,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:39:43,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:39:43,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:39:43,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:39:43,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:39:43,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:39:43,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:39:43,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:39:43,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:39:43,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:39:43,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:39:43,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:39:43,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:39:43,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:39:43,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:39:43,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:39:43,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:39:43,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:39:43,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:39:43,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:39:43,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:39:43,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:39:43,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:39:43,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:39:43,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:39:43,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:39:43,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:39:43,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 20:39:43,451 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:39:43,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:39:43,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:39:43,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:39:43,453 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:39:43,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:39:43,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:39:43,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:39:43,455 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:39:43,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:39:43,456 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:39:43,456 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:39:43,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:39:43,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:39:43,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:39:43,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:39:43,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:39:43,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:39:43,458 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 20:39:43,458 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:39:43,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:39:43,458 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:39:43,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:39:43,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:39:43,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:39:43,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:39:43,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:39:43,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:39:43,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:39:43,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:39:43,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:39:43,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:39:43,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:39:43,461 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_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2022-11-02 20:39:43,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:39:43,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:39:43,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:39:43,799 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:39:43,801 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:39:43,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2022-11-02 20:39:43,872 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc/data/8062b2d52/89cc8b489d8449a4afc5035203d32ca3/FLAG3a3fbb160 [2022-11-02 20:39:44,442 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:39:44,442 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2022-11-02 20:39:44,469 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc/data/8062b2d52/89cc8b489d8449a4afc5035203d32ca3/FLAG3a3fbb160 [2022-11-02 20:39:44,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc/data/8062b2d52/89cc8b489d8449a4afc5035203d32ca3 [2022-11-02 20:39:44,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:39:44,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:39:44,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:39:44,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:39:44,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:39:44,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:39:44" (1/1) ... [2022-11-02 20:39:44,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50169e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:44, skipping insertion in model container [2022-11-02 20:39:44,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:39:44" (1/1) ... [2022-11-02 20:39:44,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:39:44,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:39:45,501 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_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2022-11-02 20:39:45,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:39:45,536 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:39:45,592 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_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2022-11-02 20:39:45,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:39:45,728 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:39:45,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:45 WrapperNode [2022-11-02 20:39:45,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:39:45,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:39:45,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:39:45,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:39:45,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:45" (1/1) ... [2022-11-02 20:39:45,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:45" (1/1) ... [2022-11-02 20:39:45,835 INFO L138 Inliner]: procedures = 428, calls = 126, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 496 [2022-11-02 20:39:45,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:39:45,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:39:45,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:39:45,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:39:45,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:45" (1/1) ... [2022-11-02 20:39:45,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:45" (1/1) ... [2022-11-02 20:39:45,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:45" (1/1) ... [2022-11-02 20:39:45,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:45" (1/1) ... [2022-11-02 20:39:45,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:45" (1/1) ... [2022-11-02 20:39:45,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:45" (1/1) ... [2022-11-02 20:39:45,915 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:45" (1/1) ... [2022-11-02 20:39:45,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:45" (1/1) ... [2022-11-02 20:39:45,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:39:45,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:39:45,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:39:45,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:39:45,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:45" (1/1) ... [2022-11-02 20:39:45,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:39:45,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:39:45,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:39:46,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104eb543-c434-4cf4-a2a8-a03a3f3ba2d8/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:39:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2022-11-02 20:39:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2022-11-02 20:39:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:39:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:39:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:39:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:39:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2022-11-02 20:39:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:39:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:39:46,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:39:46,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:39:46,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:39:46,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:39:46,036 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2022-11-02 20:39:46,036 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2022-11-02 20:39:46,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:39:46,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:39:46,038 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:39:46,273 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:39:46,279 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:39:47,193 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:39:47,207 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:39:47,207 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-02 20:39:47,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:39:47 BoogieIcfgContainer [2022-11-02 20:39:47,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:39:47,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:39:47,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:39:47,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:39:47,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:39:44" (1/3) ... [2022-11-02 20:39:47,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7ab8e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:39:47, skipping insertion in model container [2022-11-02 20:39:47,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:45" (2/3) ... [2022-11-02 20:39:47,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7ab8e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:39:47, skipping insertion in model container [2022-11-02 20:39:47,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:39:47" (3/3) ... [2022-11-02 20:39:47,223 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2022-11-02 20:39:47,236 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:39:47,250 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:39:47,251 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-02 20:39:47,251 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:39:47,449 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-02 20:39:47,520 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:39:47,545 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 490 places, 539 transitions, 1100 flow [2022-11-02 20:39:47,551 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 490 places, 539 transitions, 1100 flow [2022-11-02 20:39:47,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 490 places, 539 transitions, 1100 flow [2022-11-02 20:39:48,064 INFO L130 PetriNetUnfolder]: 122/1192 cut-off events. [2022-11-02 20:39:48,065 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-02 20:39:48,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1212 conditions, 1192 events. 122/1192 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7404 event pairs, 0 based on Foata normal form. 0/1016 useless extension candidates. Maximal degree in co-relation 625. Up to 16 conditions per place. [2022-11-02 20:39:48,212 INFO L118 LiptonReduction]: Number of co-enabled transitions 138674 [2022-11-02 20:42:45,346 WARN L234 SmtUtils]: Spent 58.72s on a formula simplification. DAG size of input: 191 DAG size of output: 189 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-02 20:43:13,142 WARN L234 SmtUtils]: Spent 27.79s on a formula simplification that was a NOOP. DAG size: 187 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)