./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fef1217f8a35a342f6e4927c3581e159c4208b83ce3f67c4227091859235df56 --- 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-4e7fbc6 [2022-11-23 03:58:04,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:58:04,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:58:04,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:58:04,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:58:04,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:58:04,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:58:04,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:58:04,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:58:04,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:58:04,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:58:04,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:58:04,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:58:04,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:58:04,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:58:04,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:58:04,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:58:04,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:58:04,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:58:04,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:58:04,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:58:04,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:58:04,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:58:04,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:58:04,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:58:04,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:58:04,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:58:04,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:58:04,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:58:04,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:58:04,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:58:04,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:58:04,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:58:04,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:58:04,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:58:04,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:58:04,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:58:04,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:58:04,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:58:04,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:58:04,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:58:04,384 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-23 03:58:04,433 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:58:04,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:58:04,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:58:04,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:58:04,434 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:58:04,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:58:04,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:58:04,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:58:04,435 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:58:04,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:58:04,436 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:58:04,436 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:58:04,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:58:04,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:58:04,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:58:04,436 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 03:58:04,437 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 03:58:04,437 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 03:58:04,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:58:04,437 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 03:58:04,437 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:58:04,438 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:58:04,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:58:04,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:58:04,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:58:04,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:58:04,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:58:04,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:58:04,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:58:04,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:58:04,457 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:58:04,457 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:58:04,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:58:04,457 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fef1217f8a35a342f6e4927c3581e159c4208b83ce3f67c4227091859235df56 [2022-11-23 03:58:04,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:58:04,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:58:04,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:58:04,706 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:58:04,707 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:58:04,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i [2022-11-23 03:58:07,698 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:58:08,019 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:58:08,020 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i [2022-11-23 03:58:08,038 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/data/f773a3716/6a5208d0e8e34162af7927bdad6e7371/FLAG6806923bd [2022-11-23 03:58:08,058 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/data/f773a3716/6a5208d0e8e34162af7927bdad6e7371 [2022-11-23 03:58:08,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:58:08,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:58:08,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:58:08,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:58:08,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:58:08,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:08" (1/1) ... [2022-11-23 03:58:08,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b4da60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:08, skipping insertion in model container [2022-11-23 03:58:08,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:08" (1/1) ... [2022-11-23 03:58:08,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:58:08,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:58:08,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:58:08,707 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:58:08,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:58:08,828 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:58:08,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:08 WrapperNode [2022-11-23 03:58:08,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:58:08,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:58:08,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:58:08,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:58:08,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:08" (1/1) ... [2022-11-23 03:58:08,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:08" (1/1) ... [2022-11-23 03:58:08,895 INFO L138 Inliner]: procedures = 264, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-11-23 03:58:08,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:58:08,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:58:08,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:58:08,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:58:08,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:08" (1/1) ... [2022-11-23 03:58:08,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:08" (1/1) ... [2022-11-23 03:58:08,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:08" (1/1) ... [2022-11-23 03:58:08,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:08" (1/1) ... [2022-11-23 03:58:08,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:08" (1/1) ... [2022-11-23 03:58:08,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:08" (1/1) ... [2022-11-23 03:58:08,917 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:08" (1/1) ... [2022-11-23 03:58:08,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:08" (1/1) ... [2022-11-23 03:58:08,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:58:08,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:58:08,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:58:08,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:58:08,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:08" (1/1) ... [2022-11-23 03:58:08,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:58:08,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:08,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:08,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:58:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2022-11-23 03:58:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:58:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2022-11-23 03:58:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:58:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2022-11-23 03:58:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:58:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:58:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:58:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 03:58:09,033 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 03:58:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:58:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:58:09,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:58:09,035 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:58:09,167 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:58:09,170 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:58:09,334 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:58:09,341 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:58:09,341 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:58:09,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:09 BoogieIcfgContainer [2022-11-23 03:58:09,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:58:09,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:58:09,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:58:09,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:58:09,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:58:08" (1/3) ... [2022-11-23 03:58:09,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e7ccfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:58:09, skipping insertion in model container [2022-11-23 03:58:09,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:08" (2/3) ... [2022-11-23 03:58:09,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e7ccfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:58:09, skipping insertion in model container [2022-11-23 03:58:09,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:09" (3/3) ... [2022-11-23 03:58:09,372 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_41-pt_rwlock.i [2022-11-23 03:58:09,407 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:58:09,407 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-23 03:58:09,407 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:58:09,511 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-23 03:58:09,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 67 transitions, 142 flow [2022-11-23 03:58:09,601 INFO L130 PetriNetUnfolder]: 0/66 cut-off events. [2022-11-23 03:58:09,601 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 03:58:09,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 66 events. 0/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-23 03:58:09,606 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 67 transitions, 142 flow [2022-11-23 03:58:09,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 61 transitions, 128 flow [2022-11-23 03:58:09,621 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:58:09,640 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 61 transitions, 128 flow [2022-11-23 03:58:09,644 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 61 transitions, 128 flow [2022-11-23 03:58:09,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 128 flow [2022-11-23 03:58:09,667 INFO L130 PetriNetUnfolder]: 0/61 cut-off events. [2022-11-23 03:58:09,667 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 03:58:09,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 61 events. 0/61 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-23 03:58:09,668 INFO L119 LiptonReduction]: Number of co-enabled transitions 286 [2022-11-23 03:58:12,695 INFO L134 LiptonReduction]: Checked pairs total: 261 [2022-11-23 03:58:12,695 INFO L136 LiptonReduction]: Total number of compositions: 69 [2022-11-23 03:58:12,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:58:12,718 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@71dc750d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:58:12,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-23 03:58:12,719 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-23 03:58:12,720 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:58:12,720 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:58:12,721 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-23 03:58:12,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-23 03:58:12,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:12,726 INFO L85 PathProgramCache]: Analyzing trace with hash 247, now seen corresponding path program 1 times [2022-11-23 03:58:12,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:12,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203397095] [2022-11-23 03:58:12,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:12,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:12,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:12,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:58:12,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203397095] [2022-11-23 03:58:12,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203397095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:58:12,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:58:12,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 03:58:12,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791719782] [2022-11-23 03:58:12,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:58:12,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:58:12,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:58:12,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:58:12,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:58:12,898 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 136 [2022-11-23 03:58:12,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 26 flow. Second operand has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 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) [2022-11-23 03:58:12,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:58:12,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 136 [2022-11-23 03:58:12,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:58:12,924 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2022-11-23 03:58:12,924 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:58:12,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9 conditions, 2 events. 0/2 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 2/4 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-11-23 03:58:12,925 INFO L137 encePairwiseOnDemand]: 130/136 looper letters, 0 selfloop transitions, 0 changer transitions 2/2 dead transitions. [2022-11-23 03:58:12,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 7 places, 2 transitions, 11 flow [2022-11-23 03:58:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:58:12,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 03:58:12,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 138 transitions. [2022-11-23 03:58:12,941 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5073529411764706 [2022-11-23 03:58:12,942 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 138 transitions. [2022-11-23 03:58:12,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 138 transitions. [2022-11-23 03:58:12,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:58:12,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 138 transitions. [2022-11-23 03:58:12,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 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) [2022-11-23 03:58:12,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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) [2022-11-23 03:58:12,962 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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) [2022-11-23 03:58:12,964 INFO L175 Difference]: Start difference. First operand has 14 places, 10 transitions, 26 flow. Second operand 2 states and 138 transitions. [2022-11-23 03:58:12,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 7 places, 2 transitions, 11 flow [2022-11-23 03:58:12,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 6 places, 2 transitions, 10 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:58:12,968 INFO L231 Difference]: Finished difference. Result has 6 places, 0 transitions, 0 flow [2022-11-23 03:58:12,970 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=6, PETRI_DIFFERENCE_MINUEND_PLACES=5, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=6, PETRI_TRANSITIONS=0} [2022-11-23 03:58:12,976 INFO L288 CegarLoopForPetriNet]: 14 programPoint places, -8 predicate places. [2022-11-23 03:58:12,977 INFO L495 AbstractCegarLoop]: Abstraction has has 6 places, 0 transitions, 0 flow [2022-11-23 03:58:12,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 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) [2022-11-23 03:58:12,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining) [2022-11-23 03:58:12,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-11-23 03:58:12,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-11-23 03:58:12,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 6 remaining) [2022-11-23 03:58:12,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2022-11-23 03:58:12,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2022-11-23 03:58:12,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:58:12,982 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 03:58:12,996 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 03:58:12,996 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:58:13,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:58:13 BasicIcfg [2022-11-23 03:58:13,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:58:13,022 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:58:13,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:58:13,022 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:58:13,023 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:09" (3/4) ... [2022-11-23 03:58:13,025 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 03:58:13,032 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-23 03:58:13,044 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-23 03:58:13,044 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 03:58:13,058 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 03:58:13,135 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:58:13,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:58:13,136 INFO L158 Benchmark]: Toolchain (without parser) took 5071.03ms. Allocated memory was 138.4MB in the beginning and 230.7MB in the end (delta: 92.3MB). Free memory was 71.7MB in the beginning and 195.7MB in the end (delta: -124.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:58:13,136 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 138.4MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:58:13,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 759.01ms. Allocated memory was 138.4MB in the beginning and 190.8MB in the end (delta: 52.4MB). Free memory was 71.5MB in the beginning and 138.6MB in the end (delta: -67.0MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-11-23 03:58:13,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.45ms. Allocated memory is still 190.8MB. Free memory was 138.6MB in the beginning and 136.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:58:13,138 INFO L158 Benchmark]: Boogie Preprocessor took 24.81ms. Allocated memory is still 190.8MB. Free memory was 136.5MB in the beginning and 135.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:58:13,138 INFO L158 Benchmark]: RCFGBuilder took 421.91ms. Allocated memory is still 190.8MB. Free memory was 135.0MB in the beginning and 121.1MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 03:58:13,138 INFO L158 Benchmark]: TraceAbstraction took 3664.60ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 120.3MB in the beginning and 94.5MB in the end (delta: 25.8MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2022-11-23 03:58:13,139 INFO L158 Benchmark]: Witness Printer took 114.00ms. Allocated memory is still 230.7MB. Free memory was 197.7MB in the beginning and 195.7MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:58:13,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 138.4MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 759.01ms. Allocated memory was 138.4MB in the beginning and 190.8MB in the end (delta: 52.4MB). Free memory was 71.5MB in the beginning and 138.6MB in the end (delta: -67.0MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.45ms. Allocated memory is still 190.8MB. Free memory was 138.6MB in the beginning and 136.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.81ms. Allocated memory is still 190.8MB. Free memory was 136.5MB in the beginning and 135.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 421.91ms. Allocated memory is still 190.8MB. Free memory was 135.0MB in the beginning and 121.1MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3664.60ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 120.3MB in the beginning and 94.5MB in the end (delta: 25.8MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. * Witness Printer took 114.00ms. Allocated memory is still 230.7MB. Free memory was 197.7MB in the beginning and 195.7MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 65 PlacesBefore, 14 PlacesAfterwards, 61 TransitionsBefore, 10 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 6 FixpointIterations, 43 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 69 TotalNumberOfCompositions, 261 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 241, independent: 236, independent conditional: 0, independent unconditional: 236, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 198, independent: 195, independent conditional: 0, independent unconditional: 195, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 198, independent: 185, independent conditional: 0, independent unconditional: 185, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 69, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 241, independent: 41, independent conditional: 0, independent unconditional: 41, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 198, unknown conditional: 0, unknown unconditional: 198] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 927]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 81 locations, 6 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: 3.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 03:58:13,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c856e146-9e85-42dd-8004-519acb9a0b7c/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE