./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8 --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 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b --- 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-2329fc7 [2022-12-13 20:04:03,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:04:03,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:04:03,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:04:03,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:04:03,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:04:03,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:04:03,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:04:03,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:04:03,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:04:03,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:04:03,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:04:03,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:04:03,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:04:03,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:04:03,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:04:03,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:04:03,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:04:03,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:04:03,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:04:03,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:04:03,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:04:03,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:04:03,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:04:03,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:04:03,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:04:03,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:04:03,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:04:03,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:04:03,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:04:03,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:04:03,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:04:03,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:04:03,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:04:03,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:04:03,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:04:03,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:04:03,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:04:03,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:04:03,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:04:03,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:04:03,424 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 20:04:03,438 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:04:03,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:04:03,450 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:04:03,450 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:04:03,451 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:04:03,451 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:04:03,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:04:03,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:04:03,452 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:04:03,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:04:03,452 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:04:03,452 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:04:03,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:04:03,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:04:03,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:04:03,453 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 20:04:03,453 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 20:04:03,454 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 20:04:03,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:04:03,454 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 20:04:03,454 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:04:03,454 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:04:03,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:04:03,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:04:03,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:04:03,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:04:03,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:04:03,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:04:03,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:04:03,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:04:03,455 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:04:03,456 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:04:03,456 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:04:03,456 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:04:03,456 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_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b [2022-12-13 20:04:03,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:04:03,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:04:03,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:04:03,644 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:04:03,644 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:04:03,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i [2022-12-13 20:04:06,285 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:04:06,493 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:04:06,493 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i [2022-12-13 20:04:06,502 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/data/6fc03f0d5/480cd2aaeb98478087231cb44bbcf141/FLAGdde5e1ab3 [2022-12-13 20:04:06,513 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/data/6fc03f0d5/480cd2aaeb98478087231cb44bbcf141 [2022-12-13 20:04:06,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:04:06,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:04:06,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:04:06,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:04:06,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:04:06,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:04:06" (1/1) ... [2022-12-13 20:04:06,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4b1150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:04:06, skipping insertion in model container [2022-12-13 20:04:06,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:04:06" (1/1) ... [2022-12-13 20:04:06,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:04:06,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:04:06,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:04:06,854 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:04:06,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:04:06,911 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:04:06,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:04:06 WrapperNode [2022-12-13 20:04:06,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:04:06,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:04:06,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:04:06,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:04:06,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:04:06" (1/1) ... [2022-12-13 20:04:06,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:04:06" (1/1) ... [2022-12-13 20:04:06,943 INFO L138 Inliner]: procedures = 266, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-12-13 20:04:06,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:04:06,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:04:06,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:04:06,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:04:06,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:04:06" (1/1) ... [2022-12-13 20:04:06,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:04:06" (1/1) ... [2022-12-13 20:04:06,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:04:06" (1/1) ... [2022-12-13 20:04:06,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:04:06" (1/1) ... [2022-12-13 20:04:06,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:04:06" (1/1) ... [2022-12-13 20:04:06,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:04:06" (1/1) ... [2022-12-13 20:04:06,960 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:04:06" (1/1) ... [2022-12-13 20:04:06,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:04:06" (1/1) ... [2022-12-13 20:04:06,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:04:06,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:04:06,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:04:06,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:04:06,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:04:06" (1/1) ... [2022-12-13 20:04:06,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:04:06,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:04:06,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:04:06,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:04:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:04:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:04:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:04:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 20:04:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:04:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 20:04:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 20:04:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:04:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:04:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:04:07,022 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 20:04:07,135 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:04:07,136 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:04:07,234 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:04:07,241 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:04:07,241 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:04:07,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:04:07 BoogieIcfgContainer [2022-12-13 20:04:07,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:04:07,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:04:07,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:04:07,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:04:07,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:04:06" (1/3) ... [2022-12-13 20:04:07,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b739fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:04:07, skipping insertion in model container [2022-12-13 20:04:07,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:04:06" (2/3) ... [2022-12-13 20:04:07,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b739fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:04:07, skipping insertion in model container [2022-12-13 20:04:07,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:04:07" (3/3) ... [2022-12-13 20:04:07,251 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_07-ps_nr.i [2022-12-13 20:04:07,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:04:07,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-13 20:04:07,271 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:04:07,310 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 20:04:07,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 63 transitions, 131 flow [2022-12-13 20:04:07,373 INFO L130 PetriNetUnfolder]: 3/62 cut-off events. [2022-12-13 20:04:07,373 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:04:07,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2022-12-13 20:04:07,377 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 63 transitions, 131 flow [2022-12-13 20:04:07,380 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 57 transitions, 117 flow [2022-12-13 20:04:07,382 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:04:07,393 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 57 transitions, 117 flow [2022-12-13 20:04:07,396 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 57 transitions, 117 flow [2022-12-13 20:04:07,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 57 transitions, 117 flow [2022-12-13 20:04:07,419 INFO L130 PetriNetUnfolder]: 3/57 cut-off events. [2022-12-13 20:04:07,419 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:04:07,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 57 events. 3/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-12-13 20:04:07,420 INFO L119 LiptonReduction]: Number of co-enabled transitions 378 [2022-12-13 20:04:08,753 INFO L134 LiptonReduction]: Checked pairs total: 735 [2022-12-13 20:04:08,753 INFO L136 LiptonReduction]: Total number of compositions: 56 [2022-12-13 20:04:08,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:04:08,771 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;@425108a1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:04:08,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 20:04:08,772 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 20:04:08,772 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:04:08,773 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:04:08,773 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 20:04:08,773 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2022-12-13 20:04:08,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:04:08,777 INFO L85 PathProgramCache]: Analyzing trace with hash 233, now seen corresponding path program 1 times [2022-12-13 20:04:08,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:04:08,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36913421] [2022-12-13 20:04:08,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:04:08,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:04:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:04:08,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:04:08,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:04:08,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36913421] [2022-12-13 20:04:08,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36913421] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:04:08,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:04:08,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 20:04:08,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642488845] [2022-12-13 20:04:08,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:04:08,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:04:08,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:04:08,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:04:08,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:04:08,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 119 [2022-12-13 20:04:08,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 13 transitions, 29 flow. Second operand has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 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) [2022-12-13 20:04:08,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:04:08,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 119 [2022-12-13 20:04:08,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:04:08,949 INFO L130 PetriNetUnfolder]: 21/47 cut-off events. [2022-12-13 20:04:08,949 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:04:08,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 47 events. 21/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 97 event pairs, 16 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 90. Up to 48 conditions per place. [2022-12-13 20:04:08,950 INFO L137 encePairwiseOnDemand]: 117/119 looper letters, 11 selfloop transitions, 0 changer transitions 0/11 dead transitions. [2022-12-13 20:04:08,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 11 transitions, 47 flow [2022-12-13 20:04:08,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 20:04:08,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 20:04:08,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 137 transitions. [2022-12-13 20:04:08,960 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5756302521008403 [2022-12-13 20:04:08,961 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 137 transitions. [2022-12-13 20:04:08,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 137 transitions. [2022-12-13 20:04:08,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:04:08,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 137 transitions. [2022-12-13 20:04:08,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 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) [2022-12-13 20:04:08,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2022-12-13 20:04:08,969 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2022-12-13 20:04:08,971 INFO L175 Difference]: Start difference. First operand has 16 places, 13 transitions, 29 flow. Second operand 2 states and 137 transitions. [2022-12-13 20:04:08,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 11 transitions, 47 flow [2022-12-13 20:04:08,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 11 transitions, 46 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:04:08,974 INFO L231 Difference]: Finished difference. Result has 14 places, 11 transitions, 24 flow [2022-12-13 20:04:08,976 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=24, PETRI_PLACES=14, PETRI_TRANSITIONS=11} [2022-12-13 20:04:08,978 INFO L288 CegarLoopForPetriNet]: 16 programPoint places, -2 predicate places. [2022-12-13 20:04:08,979 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 11 transitions, 24 flow [2022-12-13 20:04:08,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 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) [2022-12-13 20:04:08,979 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:04:08,979 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 20:04:08,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:04:08,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2022-12-13 20:04:08,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:04:08,980 INFO L85 PathProgramCache]: Analyzing trace with hash 7119691, now seen corresponding path program 1 times [2022-12-13 20:04:08,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:04:08,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640657888] [2022-12-13 20:04:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:04:08,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:04:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:04:09,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:04:09,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:04:09,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640657888] [2022-12-13 20:04:09,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640657888] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:04:09,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:04:09,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:04:09,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844630176] [2022-12-13 20:04:09,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:04:09,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:04:09,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:04:09,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:04:09,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:04:09,211 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 119 [2022-12-13 20:04:09,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 11 transitions, 24 flow. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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) [2022-12-13 20:04:09,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:04:09,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 119 [2022-12-13 20:04:09,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:04:09,246 INFO L130 PetriNetUnfolder]: 16/42 cut-off events. [2022-12-13 20:04:09,246 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:04:09,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 42 events. 16/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 95 event pairs, 12 based on Foata normal form. 10/47 useless extension candidates. Maximal degree in co-relation 86. Up to 33 conditions per place. [2022-12-13 20:04:09,247 INFO L137 encePairwiseOnDemand]: 116/119 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2022-12-13 20:04:09,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 14 transitions, 58 flow [2022-12-13 20:04:09,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:04:09,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 20:04:09,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 220 transitions. [2022-12-13 20:04:09,249 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46218487394957986 [2022-12-13 20:04:09,249 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 220 transitions. [2022-12-13 20:04:09,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 220 transitions. [2022-12-13 20:04:09,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:04:09,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 220 transitions. [2022-12-13 20:04:09,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 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) [2022-12-13 20:04:09,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2022-12-13 20:04:09,253 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2022-12-13 20:04:09,254 INFO L175 Difference]: Start difference. First operand has 14 places, 11 transitions, 24 flow. Second operand 4 states and 220 transitions. [2022-12-13 20:04:09,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 14 transitions, 58 flow [2022-12-13 20:04:09,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 14 transitions, 58 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:04:09,254 INFO L231 Difference]: Finished difference. Result has 16 places, 0 transitions, 0 flow [2022-12-13 20:04:09,254 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=16, PETRI_TRANSITIONS=0} [2022-12-13 20:04:09,255 INFO L288 CegarLoopForPetriNet]: 16 programPoint places, 0 predicate places. [2022-12-13 20:04:09,255 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 0 transitions, 0 flow [2022-12-13 20:04:09,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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) [2022-12-13 20:04:09,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining) [2022-12-13 20:04:09,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining) [2022-12-13 20:04:09,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2022-12-13 20:04:09,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-13 20:04:09,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:04:09,260 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 20:04:09,263 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:04:09,263 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:04:09,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:04:09 BasicIcfg [2022-12-13 20:04:09,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:04:09,268 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:04:09,268 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:04:09,268 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:04:09,269 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:04:07" (3/4) ... [2022-12-13 20:04:09,271 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 20:04:09,277 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 20:04:09,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 20:04:09,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 20:04:09,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 20:04:09,304 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:04:09,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:04:09,305 INFO L158 Benchmark]: Toolchain (without parser) took 2788.78ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 100.8MB in the beginning and 141.9MB in the end (delta: -41.1MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2022-12-13 20:04:09,305 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 136.3MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:04:09,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.90ms. Allocated memory is still 136.3MB. Free memory was 100.8MB in the beginning and 73.6MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 20:04:09,306 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.47ms. Allocated memory is still 136.3MB. Free memory was 73.6MB in the beginning and 71.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:04:09,306 INFO L158 Benchmark]: Boogie Preprocessor took 18.08ms. Allocated memory is still 136.3MB. Free memory was 71.5MB in the beginning and 70.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:04:09,306 INFO L158 Benchmark]: RCFGBuilder took 279.79ms. Allocated memory is still 136.3MB. Free memory was 70.3MB in the beginning and 58.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 20:04:09,307 INFO L158 Benchmark]: TraceAbstraction took 2021.84ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 57.3MB in the beginning and 144.0MB in the end (delta: -86.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:04:09,307 INFO L158 Benchmark]: Witness Printer took 36.45ms. Allocated memory is still 190.8MB. Free memory was 144.0MB in the beginning and 141.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:04:09,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 136.3MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.90ms. Allocated memory is still 136.3MB. Free memory was 100.8MB in the beginning and 73.6MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.47ms. Allocated memory is still 136.3MB. Free memory was 73.6MB in the beginning and 71.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.08ms. Allocated memory is still 136.3MB. Free memory was 71.5MB in the beginning and 70.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 279.79ms. Allocated memory is still 136.3MB. Free memory was 70.3MB in the beginning and 58.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2021.84ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 57.3MB in the beginning and 144.0MB in the end (delta: -86.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 36.45ms. Allocated memory is still 190.8MB. Free memory was 144.0MB in the beginning and 141.9MB 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: 1.4s, 58 PlacesBefore, 16 PlacesAfterwards, 57 TransitionsBefore, 13 TransitionsAfterwards, 378 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 56 TotalNumberOfCompositions, 735 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 462, independent: 388, independent conditional: 0, independent unconditional: 388, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 226, independent: 208, independent conditional: 0, independent unconditional: 208, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 462, independent: 180, independent conditional: 0, independent unconditional: 180, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 226, unknown conditional: 0, unknown unconditional: 226] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, 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: 936]: 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, 72 locations, 4 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: 1.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 20:04:09,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8613cb-dedb-4464-8633-11523170bccc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE