./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.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_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c --- 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 [2022-12-14 03:10:15,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 03:10:15,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 03:10:15,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 03:10:15,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 03:10:15,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 03:10:15,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 03:10:15,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 03:10:15,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 03:10:15,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 03:10:15,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 03:10:15,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 03:10:15,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 03:10:15,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 03:10:15,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 03:10:15,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 03:10:15,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 03:10:15,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 03:10:15,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 03:10:15,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 03:10:15,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 03:10:15,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 03:10:15,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 03:10:15,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 03:10:15,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 03:10:15,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 03:10:15,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 03:10:15,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 03:10:15,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 03:10:15,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 03:10:15,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 03:10:15,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 03:10:15,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 03:10:15,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 03:10:15,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 03:10:15,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 03:10:15,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 03:10:15,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 03:10:15,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 03:10:15,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 03:10:15,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 03:10:15,304 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 03:10:15,326 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 03:10:15,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 03:10:15,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 03:10:15,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 03:10:15,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 03:10:15,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 03:10:15,328 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 03:10:15,328 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 03:10:15,328 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 03:10:15,328 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 03:10:15,329 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 03:10:15,329 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 03:10:15,329 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 03:10:15,329 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 03:10:15,329 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 03:10:15,330 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 03:10:15,330 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 03:10:15,330 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 03:10:15,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 03:10:15,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 03:10:15,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 03:10:15,331 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 03:10:15,332 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 03:10:15,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 03:10:15,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 03:10:15,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 03:10:15,332 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 03:10:15,333 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 03:10:15,333 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 03:10:15,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 03:10:15,333 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 03:10:15,333 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 03:10:15,333 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 03:10:15,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 03:10:15,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 03:10:15,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:10:15,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 03:10:15,335 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 03:10:15,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 03:10:15,335 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 03:10:15,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 03:10:15,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 03:10:15,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c [2022-12-14 03:10:15,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 03:10:15,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 03:10:15,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 03:10:15,550 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 03:10:15,551 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 03:10:15,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-14 03:10:18,099 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 03:10:18,295 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 03:10:18,296 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-14 03:10:18,306 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/data/897067deb/5babfb7e4085436289e5441d68737b9c/FLAG9e428c34f [2022-12-14 03:10:18,320 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/data/897067deb/5babfb7e4085436289e5441d68737b9c [2022-12-14 03:10:18,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 03:10:18,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 03:10:18,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 03:10:18,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 03:10:18,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 03:10:18,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:10:18" (1/1) ... [2022-12-14 03:10:18,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@325d7de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:18, skipping insertion in model container [2022-12-14 03:10:18,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:10:18" (1/1) ... [2022-12-14 03:10:18,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 03:10:18,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 03:10:18,490 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-12-14 03:10:18,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:10:18,621 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 03:10:18,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-12-14 03:10:18,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:10:18,679 INFO L208 MainTranslator]: Completed translation [2022-12-14 03:10:18,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:18 WrapperNode [2022-12-14 03:10:18,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 03:10:18,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 03:10:18,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 03:10:18,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 03:10:18,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:18" (1/1) ... [2022-12-14 03:10:18,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:18" (1/1) ... [2022-12-14 03:10:18,714 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-12-14 03:10:18,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 03:10:18,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 03:10:18,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 03:10:18,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 03:10:18,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:18" (1/1) ... [2022-12-14 03:10:18,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:18" (1/1) ... [2022-12-14 03:10:18,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:18" (1/1) ... [2022-12-14 03:10:18,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:18" (1/1) ... [2022-12-14 03:10:18,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:18" (1/1) ... [2022-12-14 03:10:18,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:18" (1/1) ... [2022-12-14 03:10:18,731 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:18" (1/1) ... [2022-12-14 03:10:18,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:18" (1/1) ... [2022-12-14 03:10:18,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 03:10:18,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 03:10:18,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 03:10:18,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 03:10:18,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:18" (1/1) ... [2022-12-14 03:10:18,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:10:18,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:10:18,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 03:10:18,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 03:10:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 03:10:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 03:10:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 03:10:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 03:10:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 03:10:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 03:10:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 03:10:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 03:10:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 03:10:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 03:10:18,799 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 03:10:18,905 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 03:10:18,907 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 03:10:19,040 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 03:10:19,045 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 03:10:19,045 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 03:10:19,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:10:19 BoogieIcfgContainer [2022-12-14 03:10:19,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 03:10:19,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 03:10:19,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 03:10:19,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 03:10:19,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:10:18" (1/3) ... [2022-12-14 03:10:19,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d0d3b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:10:19, skipping insertion in model container [2022-12-14 03:10:19,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:18" (2/3) ... [2022-12-14 03:10:19,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d0d3b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:10:19, skipping insertion in model container [2022-12-14 03:10:19,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:10:19" (3/3) ... [2022-12-14 03:10:19,054 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-14 03:10:19,068 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 03:10:19,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 03:10:19,068 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 03:10:19,102 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 03:10:19,132 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 03:10:19,144 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 72 transitions, 149 flow [2022-12-14 03:10:19,147 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 72 transitions, 149 flow [2022-12-14 03:10:19,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 149 flow [2022-12-14 03:10:19,186 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2022-12-14 03:10:19,186 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 03:10:19,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2022-12-14 03:10:19,190 INFO L119 LiptonReduction]: Number of co-enabled transitions 520 [2022-12-14 03:10:21,184 INFO L134 LiptonReduction]: Checked pairs total: 1305 [2022-12-14 03:10:21,184 INFO L136 LiptonReduction]: Total number of compositions: 72 [2022-12-14 03:10:21,189 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 18 transitions, 41 flow [2022-12-14 03:10:21,199 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 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) [2022-12-14 03:10:21,210 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:10:21,215 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=FINITE_AUTOMATA, 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;@20f355d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:10:21,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-14 03:10:21,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 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) [2022-12-14 03:10:21,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 03:10:21,220 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:10:21,220 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 03:10:21,220 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-14 03:10:21,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:10:21,224 INFO L85 PathProgramCache]: Analyzing trace with hash 261, now seen corresponding path program 1 times [2022-12-14 03:10:21,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:10:21,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205588917] [2022-12-14 03:10:21,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:10:21,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:10:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:10:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:10:21,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:10:21,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205588917] [2022-12-14 03:10:21,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205588917] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:10:21,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:10:21,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 03:10:21,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949468758] [2022-12-14 03:10:21,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:10:21,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 03:10:21,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:10:21,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 03:10:21,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 03:10:21,342 INFO L87 Difference]: Start difference. First operand has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 03:10:21,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:10:21,365 INFO L93 Difference]: Finished difference Result 44 states and 73 transitions. [2022-12-14 03:10:21,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 03:10:21,368 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-12-14 03:10:21,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:10:21,375 INFO L225 Difference]: With dead ends: 44 [2022-12-14 03:10:21,375 INFO L226 Difference]: Without dead ends: 44 [2022-12-14 03:10:21,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 03:10:21,379 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:10:21,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:10:21,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-14 03:10:21,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-12-14 03:10:21,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 43 states have internal predecessors, (73), 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) [2022-12-14 03:10:21,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 73 transitions. [2022-12-14 03:10:21,410 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 73 transitions. Word has length 1 [2022-12-14 03:10:21,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:10:21,410 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 73 transitions. [2022-12-14 03:10:21,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 03:10:21,411 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 73 transitions. [2022-12-14 03:10:21,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 03:10:21,411 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:10:21,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 03:10:21,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 03:10:21,411 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-14 03:10:21,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:10:21,412 INFO L85 PathProgramCache]: Analyzing trace with hash 245079149, now seen corresponding path program 1 times [2022-12-14 03:10:21,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:10:21,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374634797] [2022-12-14 03:10:21,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:10:21,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:10:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:10:21,456 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 03:10:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:10:21,496 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 03:10:21,497 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 03:10:21,498 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2022-12-14 03:10:21,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-12-14 03:10:21,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2022-12-14 03:10:21,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-12-14 03:10:21,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-14 03:10:21,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 03:10:21,502 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 03:10:21,505 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 03:10:21,505 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 03:10:21,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:10:21 BasicIcfg [2022-12-14 03:10:21,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 03:10:21,519 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 03:10:21,519 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 03:10:21,519 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 03:10:21,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:10:19" (3/4) ... [2022-12-14 03:10:21,522 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 03:10:21,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 03:10:21,522 INFO L158 Benchmark]: Toolchain (without parser) took 3198.32ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 107.4MB in the beginning and 52.2MB in the end (delta: 55.2MB). Peak memory consumption was 101.3MB. Max. memory is 16.1GB. [2022-12-14 03:10:21,522 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 03:10:21,523 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.77ms. Allocated memory is still 140.5MB. Free memory was 107.4MB in the beginning and 88.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 03:10:21,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.51ms. Allocated memory is still 140.5MB. Free memory was 88.6MB in the beginning and 86.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 03:10:21,523 INFO L158 Benchmark]: Boogie Preprocessor took 20.32ms. Allocated memory is still 140.5MB. Free memory was 86.5MB in the beginning and 84.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 03:10:21,524 INFO L158 Benchmark]: RCFGBuilder took 311.40ms. Allocated memory is still 140.5MB. Free memory was 84.9MB in the beginning and 72.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 03:10:21,524 INFO L158 Benchmark]: TraceAbstraction took 2469.53ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 71.8MB in the beginning and 52.2MB in the end (delta: 19.6MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2022-12-14 03:10:21,524 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 184.5MB. Free memory is still 52.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 03:10:21,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.77ms. Allocated memory is still 140.5MB. Free memory was 107.4MB in the beginning and 88.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.51ms. Allocated memory is still 140.5MB. Free memory was 88.6MB in the beginning and 86.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.32ms. Allocated memory is still 140.5MB. Free memory was 86.5MB in the beginning and 84.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.40ms. Allocated memory is still 140.5MB. Free memory was 84.9MB in the beginning and 72.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2469.53ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 71.8MB in the beginning and 52.2MB in the end (delta: 19.6MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 184.5MB. Free memory is still 52.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 75 PlacesBefore, 21 PlacesAfterwards, 72 TransitionsBefore, 18 TransitionsAfterwards, 520 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 72 TotalNumberOfCompositions, 1305 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 618, independent: 507, independent conditional: 0, independent unconditional: 507, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 373, independent: 349, independent conditional: 0, independent unconditional: 349, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 373, independent: 330, independent conditional: 0, independent unconditional: 330, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 85, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 618, independent: 158, independent conditional: 0, independent unconditional: 158, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 373, unknown conditional: 0, unknown unconditional: 373] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, cond=0, D={4:0}, g=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 84 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 2 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 03:10:21,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c --- 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 [2022-12-14 03:10:23,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 03:10:23,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 03:10:23,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 03:10:23,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 03:10:23,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 03:10:23,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 03:10:23,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 03:10:23,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 03:10:23,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 03:10:23,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 03:10:23,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 03:10:23,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 03:10:23,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 03:10:23,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 03:10:23,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 03:10:23,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 03:10:23,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 03:10:23,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 03:10:23,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 03:10:23,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 03:10:23,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 03:10:23,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 03:10:23,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 03:10:23,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 03:10:23,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 03:10:23,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 03:10:23,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 03:10:23,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 03:10:23,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 03:10:23,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 03:10:23,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 03:10:23,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 03:10:23,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 03:10:23,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 03:10:23,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 03:10:23,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 03:10:23,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 03:10:23,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 03:10:23,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 03:10:23,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 03:10:23,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 03:10:23,252 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 03:10:23,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 03:10:23,253 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 03:10:23,253 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 03:10:23,254 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 03:10:23,254 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 03:10:23,254 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 03:10:23,254 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 03:10:23,254 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 03:10:23,254 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 03:10:23,255 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 03:10:23,255 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 03:10:23,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 03:10:23,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 03:10:23,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 03:10:23,256 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 03:10:23,256 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 03:10:23,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 03:10:23,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 03:10:23,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 03:10:23,257 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 03:10:23,257 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 03:10:23,257 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 03:10:23,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 03:10:23,257 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 03:10:23,257 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 03:10:23,258 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 03:10:23,258 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 03:10:23,258 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 03:10:23,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 03:10:23,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 03:10:23,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 03:10:23,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:10:23,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 03:10:23,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 03:10:23,259 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 03:10:23,259 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 03:10:23,270 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 03:10:23,271 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 03:10:23,271 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c [2022-12-14 03:10:23,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 03:10:23,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 03:10:23,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 03:10:23,491 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 03:10:23,491 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 03:10:23,492 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-14 03:10:26,022 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 03:10:26,185 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 03:10:26,186 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-14 03:10:26,196 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/data/544714225/f1a454d74348486582818716b27f275a/FLAG75c1dd696 [2022-12-14 03:10:26,207 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/data/544714225/f1a454d74348486582818716b27f275a [2022-12-14 03:10:26,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 03:10:26,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 03:10:26,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 03:10:26,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 03:10:26,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 03:10:26,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:10:26" (1/1) ... [2022-12-14 03:10:26,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70b694aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:26, skipping insertion in model container [2022-12-14 03:10:26,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:10:26" (1/1) ... [2022-12-14 03:10:26,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 03:10:26,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 03:10:26,356 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-12-14 03:10:26,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:10:26,463 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 03:10:26,472 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-12-14 03:10:26,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:10:26,514 INFO L208 MainTranslator]: Completed translation [2022-12-14 03:10:26,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:26 WrapperNode [2022-12-14 03:10:26,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 03:10:26,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 03:10:26,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 03:10:26,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 03:10:26,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:26" (1/1) ... [2022-12-14 03:10:26,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:26" (1/1) ... [2022-12-14 03:10:26,543 INFO L138 Inliner]: procedures = 166, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-14 03:10:26,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 03:10:26,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 03:10:26,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 03:10:26,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 03:10:26,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:26" (1/1) ... [2022-12-14 03:10:26,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:26" (1/1) ... [2022-12-14 03:10:26,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:26" (1/1) ... [2022-12-14 03:10:26,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:26" (1/1) ... [2022-12-14 03:10:26,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:26" (1/1) ... [2022-12-14 03:10:26,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:26" (1/1) ... [2022-12-14 03:10:26,559 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:26" (1/1) ... [2022-12-14 03:10:26,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:26" (1/1) ... [2022-12-14 03:10:26,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 03:10:26,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 03:10:26,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 03:10:26,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 03:10:26,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:26" (1/1) ... [2022-12-14 03:10:26,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:10:26,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:10:26,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 03:10:26,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 03:10:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 03:10:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 03:10:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 03:10:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 03:10:26,621 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 03:10:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 03:10:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 03:10:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 03:10:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-14 03:10:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 03:10:26,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 03:10:26,624 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 03:10:26,753 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 03:10:26,755 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 03:10:26,900 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 03:10:26,905 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 03:10:26,905 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 03:10:26,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:10:26 BoogieIcfgContainer [2022-12-14 03:10:26,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 03:10:26,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 03:10:26,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 03:10:26,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 03:10:26,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:10:26" (1/3) ... [2022-12-14 03:10:26,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7feefbce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:10:26, skipping insertion in model container [2022-12-14 03:10:26,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:26" (2/3) ... [2022-12-14 03:10:26,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7feefbce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:10:26, skipping insertion in model container [2022-12-14 03:10:26,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:10:26" (3/3) ... [2022-12-14 03:10:26,913 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-14 03:10:26,926 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 03:10:26,926 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 03:10:26,926 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 03:10:26,958 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 03:10:26,980 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 03:10:26,991 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 73 transitions, 151 flow [2022-12-14 03:10:26,993 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 73 transitions, 151 flow [2022-12-14 03:10:26,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 73 transitions, 151 flow [2022-12-14 03:10:27,021 INFO L130 PetriNetUnfolder]: 1/72 cut-off events. [2022-12-14 03:10:27,021 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 03:10:27,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 1/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2022-12-14 03:10:27,024 INFO L119 LiptonReduction]: Number of co-enabled transitions 520 [2022-12-14 03:10:31,752 INFO L134 LiptonReduction]: Checked pairs total: 1277 [2022-12-14 03:10:31,752 INFO L136 LiptonReduction]: Total number of compositions: 77 [2022-12-14 03:10:31,758 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 18 transitions, 41 flow [2022-12-14 03:10:31,771 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 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) [2022-12-14 03:10:31,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:10:31,793 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=FINITE_AUTOMATA, 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;@1272c54e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:10:31,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-14 03:10:31,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 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) [2022-12-14 03:10:31,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 03:10:31,800 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:10:31,800 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 03:10:31,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-14 03:10:31,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:10:31,804 INFO L85 PathProgramCache]: Analyzing trace with hash 267, now seen corresponding path program 1 times [2022-12-14 03:10:31,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 03:10:31,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011948828] [2022-12-14 03:10:31,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:10:31,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 03:10:31,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 03:10:31,818 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 03:10:31,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 03:10:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:10:31,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 03:10:31,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:10:31,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:10:31,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:10:31,879 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 03:10:31,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011948828] [2022-12-14 03:10:31,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011948828] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:10:31,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:10:31,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 03:10:31,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135736773] [2022-12-14 03:10:31,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:10:31,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 03:10:31,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 03:10:31,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 03:10:31,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 03:10:31,910 INFO L87 Difference]: Start difference. First operand has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 03:10:31,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:10:31,944 INFO L93 Difference]: Finished difference Result 44 states and 73 transitions. [2022-12-14 03:10:31,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 03:10:31,946 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-12-14 03:10:31,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:10:31,953 INFO L225 Difference]: With dead ends: 44 [2022-12-14 03:10:31,953 INFO L226 Difference]: Without dead ends: 44 [2022-12-14 03:10:31,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 03:10:31,957 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:10:31,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:10:31,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-14 03:10:31,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-12-14 03:10:31,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 43 states have internal predecessors, (73), 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) [2022-12-14 03:10:31,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 73 transitions. [2022-12-14 03:10:31,990 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 73 transitions. Word has length 1 [2022-12-14 03:10:31,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:10:31,990 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 73 transitions. [2022-12-14 03:10:31,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 03:10:31,991 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 73 transitions. [2022-12-14 03:10:31,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 03:10:31,991 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:10:31,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 03:10:31,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 03:10:32,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 03:10:32,194 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-14 03:10:32,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:10:32,196 INFO L85 PathProgramCache]: Analyzing trace with hash 252535682, now seen corresponding path program 1 times [2022-12-14 03:10:32,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 03:10:32,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123347144] [2022-12-14 03:10:32,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:10:32,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 03:10:32,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 03:10:32,202 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 03:10:32,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 03:10:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:10:32,330 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 03:10:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:10:32,373 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 03:10:32,373 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 03:10:32,375 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2022-12-14 03:10:32,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-12-14 03:10:32,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2022-12-14 03:10:32,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-12-14 03:10:32,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-14 03:10:32,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 03:10:32,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 03:10:32,586 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 03:10:32,596 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 03:10:32,596 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 03:10:32,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:10:32 BasicIcfg [2022-12-14 03:10:32,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 03:10:32,634 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 03:10:32,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 03:10:32,635 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 03:10:32,636 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:10:26" (3/4) ... [2022-12-14 03:10:32,641 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 03:10:32,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 03:10:32,643 INFO L158 Benchmark]: Toolchain (without parser) took 6431.69ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 80.7MB in the beginning and 81.4MB in the end (delta: -630.3kB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2022-12-14 03:10:32,643 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 31.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 03:10:32,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.37ms. Allocated memory is still 104.9MB. Free memory was 80.4MB in the beginning and 60.5MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 03:10:32,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.78ms. Allocated memory is still 104.9MB. Free memory was 60.5MB in the beginning and 58.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 03:10:32,646 INFO L158 Benchmark]: Boogie Preprocessor took 18.22ms. Allocated memory is still 104.9MB. Free memory was 58.4MB in the beginning and 57.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 03:10:32,647 INFO L158 Benchmark]: RCFGBuilder took 344.40ms. Allocated memory is still 104.9MB. Free memory was 56.7MB in the beginning and 74.8MB in the end (delta: -18.1MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2022-12-14 03:10:32,648 INFO L158 Benchmark]: TraceAbstraction took 5725.02ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 73.8MB in the beginning and 82.5MB in the end (delta: -8.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-12-14 03:10:32,649 INFO L158 Benchmark]: Witness Printer took 6.81ms. Allocated memory is still 125.8MB. Free memory was 82.5MB in the beginning and 81.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 03:10:32,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 31.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.37ms. Allocated memory is still 104.9MB. Free memory was 80.4MB in the beginning and 60.5MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.78ms. Allocated memory is still 104.9MB. Free memory was 60.5MB in the beginning and 58.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.22ms. Allocated memory is still 104.9MB. Free memory was 58.4MB in the beginning and 57.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 344.40ms. Allocated memory is still 104.9MB. Free memory was 56.7MB in the beginning and 74.8MB in the end (delta: -18.1MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5725.02ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 73.8MB in the beginning and 82.5MB in the end (delta: -8.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Witness Printer took 6.81ms. Allocated memory is still 125.8MB. Free memory was 82.5MB in the beginning and 81.4MB in the end (delta: 1.1MB). 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: 4.8s, 76 PlacesBefore, 21 PlacesAfterwards, 73 TransitionsBefore, 18 TransitionsAfterwards, 520 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 77 TotalNumberOfCompositions, 1277 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 651, independent: 542, independent conditional: 0, independent unconditional: 542, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 387, independent: 362, independent conditional: 0, independent unconditional: 362, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 387, independent: 343, independent conditional: 0, independent unconditional: 343, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 138, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 651, independent: 180, independent conditional: 0, independent unconditional: 180, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 387, unknown conditional: 0, unknown unconditional: 387] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={7:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, cond=0, D={4:0}, g=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 85 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 2 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 03:10:32,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c2a2d43-d200-496e-bb7c-efd91e75b14f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample