./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_f7e99274-ca45-436a-b810-0eaedcb7932d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e99274-ca45-436a-b810-0eaedcb7932d/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_f7e99274-ca45-436a-b810-0eaedcb7932d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e99274-ca45-436a-b810-0eaedcb7932d/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e99274-ca45-436a-b810-0eaedcb7932d/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_f7e99274-ca45-436a-b810-0eaedcb7932d/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 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 --- 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 11:54:31,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:54:31,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:54:31,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:54:31,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:54:31,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:54:31,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:54:31,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:54:31,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:54:31,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:54:31,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:54:31,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:54:31,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:54:31,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:54:31,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:54:31,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:54:31,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:54:31,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:54:31,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:54:31,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:54:31,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:54:31,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:54:31,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:54:31,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:54:31,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:54:31,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:54:31,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:54:31,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:54:31,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:54:31,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:54:31,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:54:31,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:54:31,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:54:31,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:54:31,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:54:31,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:54:31,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:54:31,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:54:31,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:54:31,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:54:31,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:54:31,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e99274-ca45-436a-b810-0eaedcb7932d/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 11:54:31,508 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:54:31,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:54:31,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:54:31,509 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:54:31,509 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:54:31,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:54:31,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:54:31,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:54:31,510 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:54:31,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:54:31,511 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:54:31,511 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:54:31,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:54:31,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:54:31,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:54:31,511 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 11:54:31,512 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 11:54:31,512 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 11:54:31,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:54:31,512 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:54:31,512 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:54:31,512 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:54:31,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:54:31,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:54:31,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:54:31,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:54:31,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:54:31,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:54:31,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:54:31,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:54:31,514 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:54:31,514 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:54:31,514 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:54:31,514 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:54:31,514 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_f7e99274-ca45-436a-b810-0eaedcb7932d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e99274-ca45-436a-b810-0eaedcb7932d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 [2022-12-13 11:54:31,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:54:31,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:54:31,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:54:31,705 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:54:31,705 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:54:31,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e99274-ca45-436a-b810-0eaedcb7932d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i [2022-12-13 11:54:34,265 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:54:34,466 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:54:34,467 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e99274-ca45-436a-b810-0eaedcb7932d/sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i [2022-12-13 11:54:34,476 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e99274-ca45-436a-b810-0eaedcb7932d/bin/uautomizer-uyxdKDjOR8/data/c9762ae3d/63751afe5eeb49d4b910450c43dc2b88/FLAG394519f5c [2022-12-13 11:54:34,826 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e99274-ca45-436a-b810-0eaedcb7932d/bin/uautomizer-uyxdKDjOR8/data/c9762ae3d/63751afe5eeb49d4b910450c43dc2b88 [2022-12-13 11:54:34,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:54:34,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:54:34,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:54:34,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:54:34,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:54:34,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:54:34" (1/1) ... [2022-12-13 11:54:34,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3327c1df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:54:34, skipping insertion in model container [2022-12-13 11:54:34,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:54:34" (1/1) ... [2022-12-13 11:54:34,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:54:34,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:54:35,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:54:35,108 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:54:35,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:54:35,168 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:54:35,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:54:35 WrapperNode [2022-12-13 11:54:35,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:54:35,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:54:35,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:54:35,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:54:35,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:54:35" (1/1) ... [2022-12-13 11:54:35,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:54:35" (1/1) ... [2022-12-13 11:54:35,199 INFO L138 Inliner]: procedures = 262, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2022-12-13 11:54:35,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:54:35,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:54:35,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:54:35,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:54:35,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:54:35" (1/1) ... [2022-12-13 11:54:35,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:54:35" (1/1) ... [2022-12-13 11:54:35,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:54:35" (1/1) ... [2022-12-13 11:54:35,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:54:35" (1/1) ... [2022-12-13 11:54:35,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:54:35" (1/1) ... [2022-12-13 11:54:35,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:54:35" (1/1) ... [2022-12-13 11:54:35,214 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:54:35" (1/1) ... [2022-12-13 11:54:35,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:54:35" (1/1) ... [2022-12-13 11:54:35,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:54:35,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:54:35,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:54:35,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:54:35,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:54:35" (1/1) ... [2022-12-13 11:54:35,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:54:35,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e99274-ca45-436a-b810-0eaedcb7932d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:54:35,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e99274-ca45-436a-b810-0eaedcb7932d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:54:35,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e99274-ca45-436a-b810-0eaedcb7932d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:54:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:54:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:54:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:54:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 11:54:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:54:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 11:54:35,277 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 11:54:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:54:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:54:35,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:54:35,279 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 11:54:35,395 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:54:35,396 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:54:35,505 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:54:35,511 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:54:35,511 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:54:35,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:54:35 BoogieIcfgContainer [2022-12-13 11:54:35,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:54:35,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:54:35,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:54:35,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:54:35,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:54:34" (1/3) ... [2022-12-13 11:54:35,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0c3de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:54:35, skipping insertion in model container [2022-12-13 11:54:35,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:54:35" (2/3) ... [2022-12-13 11:54:35,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0c3de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:54:35, skipping insertion in model container [2022-12-13 11:54:35,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:54:35" (3/3) ... [2022-12-13 11:54:35,519 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_43-thread_create_nr.i [2022-12-13 11:54:35,532 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:54:35,533 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-13 11:54:35,533 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:54:35,561 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 11:54:35,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 58 transitions, 121 flow [2022-12-13 11:54:35,608 INFO L130 PetriNetUnfolder]: 0/57 cut-off events. [2022-12-13 11:54:35,608 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:54:35,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 57 events. 0/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 11:54:35,611 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 58 transitions, 121 flow [2022-12-13 11:54:35,613 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2022-12-13 11:54:35,616 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:54:35,623 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-13 11:54:35,626 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-13 11:54:35,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2022-12-13 11:54:35,636 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-12-13 11:54:35,636 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:54:35,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 11:54:35,637 INFO L119 LiptonReduction]: Number of co-enabled transitions 126 [2022-12-13 11:54:37,173 INFO L134 LiptonReduction]: Checked pairs total: 78 [2022-12-13 11:54:37,173 INFO L136 LiptonReduction]: Total number of compositions: 54 [2022-12-13 11:54:37,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:54:37,196 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;@bde1fd8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:54:37,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 11:54:37,198 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 11:54:37,198 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:54:37,199 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:54:37,199 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 11:54:37,199 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 11:54:37,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:37,203 INFO L85 PathProgramCache]: Analyzing trace with hash 207, now seen corresponding path program 1 times [2022-12-13 11:54:37,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:37,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943599029] [2022-12-13 11:54:37,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:37,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:37,310 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 11:54:37,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:37,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943599029] [2022-12-13 11:54:37,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943599029] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:37,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:37,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 11:54:37,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441183938] [2022-12-13 11:54:37,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:37,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:54:37,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:37,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:54:37,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:54:37,340 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 112 [2022-12-13 11:54:37,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 10 places, 6 transitions, 15 flow. Second operand has 2 states, 2 states have (on average 57.5) internal successors, (115), 2 states have internal predecessors, (115), 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 11:54:37,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:54:37,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 112 [2022-12-13 11:54:37,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:54:37,356 INFO L130 PetriNetUnfolder]: 1/6 cut-off events. [2022-12-13 11:54:37,356 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:54:37,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 6 events. 1/6 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 1 based on Foata normal form. 0/6 useless extension candidates. Maximal degree in co-relation 8. Up to 7 conditions per place. [2022-12-13 11:54:37,358 INFO L137 encePairwiseOnDemand]: 110/112 looper letters, 4 selfloop transitions, 0 changer transitions 0/4 dead transitions. [2022-12-13 11:54:37,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 4 transitions, 19 flow [2022-12-13 11:54:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:54:37,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 11:54:37,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 120 transitions. [2022-12-13 11:54:37,368 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2022-12-13 11:54:37,369 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 120 transitions. [2022-12-13 11:54:37,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 120 transitions. [2022-12-13 11:54:37,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:54:37,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 120 transitions. [2022-12-13 11:54:37,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 60.0) internal successors, (120), 2 states have internal predecessors, (120), 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 11:54:37,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 11:54:37,377 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 11:54:37,378 INFO L175 Difference]: Start difference. First operand has 10 places, 6 transitions, 15 flow. Second operand 2 states and 120 transitions. [2022-12-13 11:54:37,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 4 transitions, 19 flow [2022-12-13 11:54:37,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 8 places, 4 transitions, 18 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:54:37,381 INFO L231 Difference]: Finished difference. Result has 8 places, 4 transitions, 10 flow [2022-12-13 11:54:37,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=10, PETRI_DIFFERENCE_MINUEND_PLACES=7, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=10, PETRI_PLACES=8, PETRI_TRANSITIONS=4} [2022-12-13 11:54:37,385 INFO L288 CegarLoopForPetriNet]: 10 programPoint places, -2 predicate places. [2022-12-13 11:54:37,385 INFO L495 AbstractCegarLoop]: Abstraction has has 8 places, 4 transitions, 10 flow [2022-12-13 11:54:37,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 57.5) internal successors, (115), 2 states have internal predecessors, (115), 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 11:54:37,385 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:54:37,385 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 11:54:37,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:54:37,386 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 11:54:37,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:37,386 INFO L85 PathProgramCache]: Analyzing trace with hash 204863, now seen corresponding path program 1 times [2022-12-13 11:54:37,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:37,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882135048] [2022-12-13 11:54:37,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:37,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:37,518 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 11:54:37,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:37,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882135048] [2022-12-13 11:54:37,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882135048] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:37,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:37,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:54:37,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300518428] [2022-12-13 11:54:37,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:37,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:54:37,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:37,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:54:37,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:54:37,543 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 112 [2022-12-13 11:54:37,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 8 places, 4 transitions, 10 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 11:54:37,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:54:37,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 112 [2022-12-13 11:54:37,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:54:37,550 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-13 11:54:37,550 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:54:37,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11 conditions, 3 events. 0/3 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. 2/5 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-13 11:54:37,550 INFO L137 encePairwiseOnDemand]: 110/112 looper letters, 0 selfloop transitions, 0 changer transitions 3/3 dead transitions. [2022-12-13 11:54:37,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 3 transitions, 14 flow [2022-12-13 11:54:37,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:54:37,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:54:37,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2022-12-13 11:54:37,552 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4851190476190476 [2022-12-13 11:54:37,553 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 163 transitions. [2022-12-13 11:54:37,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 163 transitions. [2022-12-13 11:54:37,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:54:37,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 163 transitions. [2022-12-13 11:54:37,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 11:54:37,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 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 11:54:37,556 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 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 11:54:37,556 INFO L175 Difference]: Start difference. First operand has 8 places, 4 transitions, 10 flow. Second operand 3 states and 163 transitions. [2022-12-13 11:54:37,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 3 transitions, 14 flow [2022-12-13 11:54:37,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 3 transitions, 14 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:54:37,556 INFO L231 Difference]: Finished difference. Result has 9 places, 0 transitions, 0 flow [2022-12-13 11:54:37,557 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=8, PETRI_DIFFERENCE_MINUEND_PLACES=7, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=9, PETRI_TRANSITIONS=0} [2022-12-13 11:54:37,557 INFO L288 CegarLoopForPetriNet]: 10 programPoint places, -1 predicate places. [2022-12-13 11:54:37,557 INFO L495 AbstractCegarLoop]: Abstraction has has 9 places, 0 transitions, 0 flow [2022-12-13 11:54:37,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 11:54:37,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining) [2022-12-13 11:54:37,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining) [2022-12-13 11:54:37,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2022-12-13 11:54:37,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-13 11:54:37,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:54:37,561 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 11:54:37,564 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 11:54:37,564 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:54:37,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:54:37 BasicIcfg [2022-12-13 11:54:37,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:54:37,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:54:37,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:54:37,569 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:54:37,569 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:54:35" (3/4) ... [2022-12-13 11:54:37,572 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 11:54:37,578 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 11:54:37,581 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 11:54:37,582 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 11:54:37,582 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 11:54:37,612 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e99274-ca45-436a-b810-0eaedcb7932d/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:54:37,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:54:37,613 INFO L158 Benchmark]: Toolchain (without parser) took 2784.25ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 106.9MB in the beginning and 111.9MB in the end (delta: -5.0MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2022-12-13 11:54:37,613 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:54:37,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.95ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 80.2MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 11:54:37,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.13ms. Allocated memory is still 142.6MB. Free memory was 79.8MB in the beginning and 77.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:54:37,614 INFO L158 Benchmark]: Boogie Preprocessor took 16.20ms. Allocated memory is still 142.6MB. Free memory was 77.7MB in the beginning and 76.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:54:37,615 INFO L158 Benchmark]: RCFGBuilder took 296.43ms. Allocated memory is still 142.6MB. Free memory was 76.4MB in the beginning and 110.5MB in the end (delta: -34.1MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2022-12-13 11:54:37,615 INFO L158 Benchmark]: TraceAbstraction took 2053.44ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 109.7MB in the beginning and 114.0MB in the end (delta: -4.3MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2022-12-13 11:54:37,616 INFO L158 Benchmark]: Witness Printer took 43.54ms. Allocated memory is still 172.0MB. Free memory was 114.0MB in the beginning and 111.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:54:37,618 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.95ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 80.2MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.13ms. Allocated memory is still 142.6MB. Free memory was 79.8MB in the beginning and 77.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.20ms. Allocated memory is still 142.6MB. Free memory was 77.7MB in the beginning and 76.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 296.43ms. Allocated memory is still 142.6MB. Free memory was 76.4MB in the beginning and 110.5MB in the end (delta: -34.1MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2053.44ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 109.7MB in the beginning and 114.0MB in the end (delta: -4.3MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Witness Printer took 43.54ms. Allocated memory is still 172.0MB. Free memory was 114.0MB in the beginning and 111.9MB 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: 1.5s, 56 PlacesBefore, 10 PlacesAfterwards, 52 TransitionsBefore, 6 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, 78 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 78, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 62, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 78, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 62, unknown conditional: 0, unknown unconditional: 62] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, 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: 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, 68 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: 2.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 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 11:54:37,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e99274-ca45-436a-b810-0eaedcb7932d/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