./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 38b53e6a 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_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/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_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R --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-38b53e6 [2022-11-25 15:53:01,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:53:01,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:53:01,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:53:01,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:53:01,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:53:01,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:53:01,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:53:01,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:53:01,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:53:01,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:53:01,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:53:01,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:53:01,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:53:01,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:53:01,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:53:01,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:53:01,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:53:01,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:53:01,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:53:01,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:53:01,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:53:01,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:53:01,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:53:01,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:53:01,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:53:01,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:53:01,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:53:01,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:53:01,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:53:01,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:53:01,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:53:01,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:53:01,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:53:01,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:53:01,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:53:01,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:53:01,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:53:01,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:53:01,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:53:01,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:53:01,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-25 15:53:01,818 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:53:01,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:53:01,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:53:01,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:53:01,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:53:01,821 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:53:01,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:53:01,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:53:01,823 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:53:01,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:53:01,825 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:53:01,825 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:53:01,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:53:01,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:53:01,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:53:01,826 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 15:53:01,826 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 15:53:01,827 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 15:53:01,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:53:01,827 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 15:53:01,828 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:53:01,828 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:53:01,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:53:01,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:53:01,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:53:01,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:53:01,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:53:01,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:53:01,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:53:01,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:53:01,831 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:53:01,831 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:53:01,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:53:01,832 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_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fef1217f8a35a342f6e4927c3581e159c4208b83ce3f67c4227091859235df56 [2022-11-25 15:53:02,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:53:02,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:53:02,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:53:02,212 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:53:02,213 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:53:02,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i [2022-11-25 15:53:05,977 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:53:06,402 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:53:06,405 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i [2022-11-25 15:53:06,432 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/data/7b35f1942/7c17e5da1ff84059934ce55bc83facd7/FLAG49997900f [2022-11-25 15:53:06,450 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/data/7b35f1942/7c17e5da1ff84059934ce55bc83facd7 [2022-11-25 15:53:06,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:53:06,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:53:06,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:53:06,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:53:06,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:53:06,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:53:06" (1/1) ... [2022-11-25 15:53:06,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@273df589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:53:06, skipping insertion in model container [2022-11-25 15:53:06,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:53:06" (1/1) ... [2022-11-25 15:53:06,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:53:06,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:53:07,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:53:07,158 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:53:07,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:53:07,286 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:53:07,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:53:07 WrapperNode [2022-11-25 15:53:07,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:53:07,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:53:07,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:53:07,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:53:07,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:53:07" (1/1) ... [2022-11-25 15:53:07,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:53:07" (1/1) ... [2022-11-25 15:53:07,376 INFO L138 Inliner]: procedures = 264, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-11-25 15:53:07,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:53:07,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:53:07,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:53:07,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:53:07,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:53:07" (1/1) ... [2022-11-25 15:53:07,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:53:07" (1/1) ... [2022-11-25 15:53:07,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:53:07" (1/1) ... [2022-11-25 15:53:07,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:53:07" (1/1) ... [2022-11-25 15:53:07,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:53:07" (1/1) ... [2022-11-25 15:53:07,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:53:07" (1/1) ... [2022-11-25 15:53:07,424 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:53:07" (1/1) ... [2022-11-25 15:53:07,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:53:07" (1/1) ... [2022-11-25 15:53:07,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:53:07,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:53:07,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:53:07,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:53:07,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:53:07" (1/1) ... [2022-11-25 15:53:07,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:53:07,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:53:07,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:53:07,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:53:07,552 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2022-11-25 15:53:07,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:53:07,553 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2022-11-25 15:53:07,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:53:07,553 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2022-11-25 15:53:07,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:53:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:53:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:53:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 15:53:07,555 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 15:53:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:53:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:53:07,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:53:07,558 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 15:53:07,751 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:53:07,753 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:53:08,008 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:53:08,017 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:53:08,017 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:53:08,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:53:08 BoogieIcfgContainer [2022-11-25 15:53:08,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:53:08,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:53:08,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:53:08,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:53:08,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:53:06" (1/3) ... [2022-11-25 15:53:08,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72aff545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:53:08, skipping insertion in model container [2022-11-25 15:53:08,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:53:07" (2/3) ... [2022-11-25 15:53:08,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72aff545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:53:08, skipping insertion in model container [2022-11-25 15:53:08,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:53:08" (3/3) ... [2022-11-25 15:53:08,033 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_41-pt_rwlock.i [2022-11-25 15:53:08,058 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:53:08,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-25 15:53:08,059 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 15:53:08,121 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-25 15:53:08,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 67 transitions, 142 flow [2022-11-25 15:53:08,222 INFO L130 PetriNetUnfolder]: 0/66 cut-off events. [2022-11-25 15:53:08,222 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 15:53:08,226 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. [2022-11-25 15:53:08,227 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 67 transitions, 142 flow [2022-11-25 15:53:08,232 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 61 transitions, 128 flow [2022-11-25 15:53:08,237 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 15:53:08,258 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 61 transitions, 128 flow [2022-11-25 15:53:08,261 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 61 transitions, 128 flow [2022-11-25 15:53:08,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 128 flow [2022-11-25 15:53:08,289 INFO L130 PetriNetUnfolder]: 0/61 cut-off events. [2022-11-25 15:53:08,289 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 15:53:08,290 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. [2022-11-25 15:53:08,291 INFO L119 LiptonReduction]: Number of co-enabled transitions 286 [2022-11-25 15:53:12,013 INFO L134 LiptonReduction]: Checked pairs total: 261 [2022-11-25 15:53:12,014 INFO L136 LiptonReduction]: Total number of compositions: 69 [2022-11-25 15:53:12,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:53:12,061 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;@10890128, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:53:12,062 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 15:53:12,069 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 15:53:12,070 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:53:12,070 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:53:12,072 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 15:53:12,073 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)] === [2022-11-25 15:53:12,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:53:12,081 INFO L85 PathProgramCache]: Analyzing trace with hash 247, now seen corresponding path program 1 times [2022-11-25 15:53:12,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:53:12,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331932498] [2022-11-25 15:53:12,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:12,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:53:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:53:12,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:53:12,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:53:12,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331932498] [2022-11-25 15:53:12,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331932498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:53:12,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:53:12,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 15:53:12,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466612680] [2022-11-25 15:53:12,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:53:12,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 15:53:12,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:53:12,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 15:53:12,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:53:12,322 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 136 [2022-11-25 15:53:12,326 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) [2022-11-25 15:53:12,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:53:12,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 136 [2022-11-25 15:53:12,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:53:12,354 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2022-11-25 15:53:12,355 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:53:12,355 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. [2022-11-25 15:53:12,356 INFO L137 encePairwiseOnDemand]: 130/136 looper letters, 0 selfloop transitions, 0 changer transitions 2/2 dead transitions. [2022-11-25 15:53:12,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 7 places, 2 transitions, 11 flow [2022-11-25 15:53:12,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 15:53:12,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 15:53:12,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 138 transitions. [2022-11-25 15:53:12,377 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5073529411764706 [2022-11-25 15:53:12,378 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 138 transitions. [2022-11-25 15:53:12,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 138 transitions. [2022-11-25 15:53:12,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:53:12,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 138 transitions. [2022-11-25 15:53:12,393 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) [2022-11-25 15:53:12,400 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) [2022-11-25 15:53:12,401 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) [2022-11-25 15:53:12,404 INFO L175 Difference]: Start difference. First operand has 14 places, 10 transitions, 26 flow. Second operand 2 states and 138 transitions. [2022-11-25 15:53:12,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 7 places, 2 transitions, 11 flow [2022-11-25 15:53:12,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 6 places, 2 transitions, 10 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:53:12,410 INFO L231 Difference]: Finished difference. Result has 6 places, 0 transitions, 0 flow [2022-11-25 15:53:12,412 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} [2022-11-25 15:53:12,427 INFO L288 CegarLoopForPetriNet]: 14 programPoint places, -8 predicate places. [2022-11-25 15:53:12,427 INFO L495 AbstractCegarLoop]: Abstraction has has 6 places, 0 transitions, 0 flow [2022-11-25 15:53:12,428 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) [2022-11-25 15:53:12,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining) [2022-11-25 15:53:12,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-11-25 15:53:12,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-11-25 15:53:12,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 6 remaining) [2022-11-25 15:53:12,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2022-11-25 15:53:12,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2022-11-25 15:53:12,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:53:12,436 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 15:53:12,453 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 15:53:12,454 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:53:12,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:53:12 BasicIcfg [2022-11-25 15:53:12,463 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:53:12,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:53:12,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:53:12,468 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:53:12,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:53:08" (3/4) ... [2022-11-25 15:53:12,474 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 15:53:12,488 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-25 15:53:12,497 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-25 15:53:12,497 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 15:53:12,498 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 15:53:12,563 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:53:12,564 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:53:12,564 INFO L158 Benchmark]: Toolchain (without parser) took 6109.03ms. Allocated memory is still 220.2MB. Free memory was 186.4MB in the beginning and 154.1MB in the end (delta: 32.4MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2022-11-25 15:53:12,565 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 146.8MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:53:12,565 INFO L158 Benchmark]: CACSL2BoogieTranslator took 830.04ms. Allocated memory is still 220.2MB. Free memory was 186.4MB in the beginning and 159.3MB in the end (delta: 27.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 15:53:12,566 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.20ms. Allocated memory is still 220.2MB. Free memory was 159.3MB in the beginning and 157.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:53:12,566 INFO L158 Benchmark]: Boogie Preprocessor took 67.89ms. Allocated memory is still 220.2MB. Free memory was 157.0MB in the beginning and 154.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:53:12,571 INFO L158 Benchmark]: RCFGBuilder took 574.73ms. Allocated memory is still 220.2MB. Free memory was 154.9MB in the beginning and 141.7MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 15:53:12,572 INFO L158 Benchmark]: TraceAbstraction took 4441.96ms. Allocated memory is still 220.2MB. Free memory was 141.0MB in the beginning and 156.2MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:53:12,573 INFO L158 Benchmark]: Witness Printer took 97.14ms. Allocated memory is still 220.2MB. Free memory was 156.2MB in the beginning and 154.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:53:12,575 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 146.8MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 830.04ms. Allocated memory is still 220.2MB. Free memory was 186.4MB in the beginning and 159.3MB in the end (delta: 27.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.20ms. Allocated memory is still 220.2MB. Free memory was 159.3MB in the beginning and 157.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.89ms. Allocated memory is still 220.2MB. Free memory was 157.0MB in the beginning and 154.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 574.73ms. Allocated memory is still 220.2MB. Free memory was 154.9MB in the beginning and 141.7MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4441.96ms. Allocated memory is still 220.2MB. Free memory was 141.0MB in the beginning and 156.2MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 97.14ms. Allocated memory is still 220.2MB. Free memory was 156.2MB in the beginning and 154.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 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: 87, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 15, dependent conditional: 0, dependent unconditional: 15, 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: 4.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, 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! [2022-11-25 15:53:12,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6196ec48-239f-417e-93db-f0cb8e793364/bin/uautomizer-ZsLfNo2U6R/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