./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/reorder_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 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_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/reorder_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba --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 c2478eeb4380713960dd80551c9d8e99269809d2bcbd284785221597bb31a471 --- 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-b5237d8 [2022-11-22 00:19:56,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:19:56,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:19:56,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:19:56,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:19:56,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:19:56,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:19:56,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:19:56,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:19:56,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:19:56,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:19:56,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:19:56,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:19:56,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:19:56,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:19:56,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:19:56,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:19:56,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:19:56,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:19:56,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:19:56,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:19:56,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:19:56,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:19:56,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:19:56,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:19:56,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:19:56,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:19:56,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:19:56,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:19:56,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:19:56,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:19:56,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:19:56,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:19:56,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:19:56,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:19:56,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:19:56,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:19:56,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:19:56,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:19:56,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:19:56,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:19:56,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 00:19:56,328 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:19:56,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:19:56,329 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:19:56,329 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:19:56,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:19:56,330 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:19:56,330 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:19:56,330 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:19:56,330 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:19:56,331 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:19:56,331 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:19:56,331 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:19:56,331 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:19:56,331 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:19:56,332 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:19:56,332 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:19:56,332 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:19:56,332 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:19:56,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 00:19:56,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 00:19:56,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:19:56,334 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:19:56,334 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:19:56,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:19:56,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:19:56,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:19:56,335 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 00:19:56,335 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 00:19:56,335 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 00:19:56,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:19:56,335 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 00:19:56,336 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:19:56,336 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:19:56,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:19:56,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:19:56,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:19:56,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:19:56,337 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:19:56,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:19:56,337 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:19:56,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:19:56,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:19:56,338 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_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2478eeb4380713960dd80551c9d8e99269809d2bcbd284785221597bb31a471 [2022-11-22 00:19:56,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:19:56,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:19:56,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:19:56,628 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:19:56,629 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:19:56,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread/reorder_5.i [2022-11-22 00:19:59,718 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:20:00,121 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:20:00,122 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/sv-benchmarks/c/pthread/reorder_5.i [2022-11-22 00:20:00,147 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/data/7e0a03211/abdad38315074767a2f2e0ba823a2051/FLAG97146076f [2022-11-22 00:20:00,170 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/data/7e0a03211/abdad38315074767a2f2e0ba823a2051 [2022-11-22 00:20:00,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:20:00,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:20:00,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:20:00,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:20:00,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:20:00,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:20:00" (1/1) ... [2022-11-22 00:20:00,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c7bc74f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:00, skipping insertion in model container [2022-11-22 00:20:00,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:20:00" (1/1) ... [2022-11-22 00:20:00,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:20:00,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:20:00,863 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_bdc29092-57b1-4804-9cf8-1cd9be6916f5/sv-benchmarks/c/pthread/reorder_5.i[59329,59342] [2022-11-22 00:20:00,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:20:00,884 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:20:00,937 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_bdc29092-57b1-4804-9cf8-1cd9be6916f5/sv-benchmarks/c/pthread/reorder_5.i[59329,59342] [2022-11-22 00:20:00,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:20:01,013 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:20:01,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:01 WrapperNode [2022-11-22 00:20:01,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:20:01,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:20:01,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:20:01,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:20:01,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:01" (1/1) ... [2022-11-22 00:20:01,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:01" (1/1) ... [2022-11-22 00:20:01,083 INFO L138 Inliner]: procedures = 369, calls = 37, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 136 [2022-11-22 00:20:01,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:20:01,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:20:01,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:20:01,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:20:01,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:01" (1/1) ... [2022-11-22 00:20:01,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:01" (1/1) ... [2022-11-22 00:20:01,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:01" (1/1) ... [2022-11-22 00:20:01,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:01" (1/1) ... [2022-11-22 00:20:01,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:01" (1/1) ... [2022-11-22 00:20:01,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:01" (1/1) ... [2022-11-22 00:20:01,138 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:01" (1/1) ... [2022-11-22 00:20:01,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:01" (1/1) ... [2022-11-22 00:20:01,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:20:01,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:20:01,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:20:01,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:20:01,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:01" (1/1) ... [2022-11-22 00:20:01,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:20:01,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:20:01,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:20:01,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:20:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:20:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:20:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:20:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-11-22 00:20:01,228 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-11-22 00:20:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:20:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:20:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-11-22 00:20:01,228 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-11-22 00:20:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:20:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:20:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:20:01,231 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 00:20:01,438 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:20:01,440 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:20:01,790 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:20:01,810 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:20:01,810 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 00:20:01,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:20:01 BoogieIcfgContainer [2022-11-22 00:20:01,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:20:01,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:20:01,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:20:01,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:20:01,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:20:00" (1/3) ... [2022-11-22 00:20:01,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4039c06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:20:01, skipping insertion in model container [2022-11-22 00:20:01,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:01" (2/3) ... [2022-11-22 00:20:01,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4039c06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:20:01, skipping insertion in model container [2022-11-22 00:20:01,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:20:01" (3/3) ... [2022-11-22 00:20:01,823 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2022-11-22 00:20:01,843 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:20:01,843 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-22 00:20:01,843 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 00:20:01,929 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-22 00:20:01,981 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:20:02,003 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 186 transitions, 394 flow [2022-11-22 00:20:02,017 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 186 transitions, 394 flow [2022-11-22 00:20:02,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 186 transitions, 394 flow [2022-11-22 00:20:02,181 INFO L130 PetriNetUnfolder]: 35/411 cut-off events. [2022-11-22 00:20:02,182 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-22 00:20:02,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 411 events. 35/411 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1675 event pairs, 0 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 218. Up to 8 conditions per place. [2022-11-22 00:20:02,202 INFO L119 LiptonReduction]: Number of co-enabled transitions 2694 [2022-11-22 00:20:16,899 INFO L134 LiptonReduction]: Checked pairs total: 4467 [2022-11-22 00:20:16,899 INFO L136 LiptonReduction]: Total number of compositions: 209 [2022-11-22 00:20:16,908 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 52 transitions, 126 flow [2022-11-22 00:20:16,952 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 410 states, 302 states have (on average 2.6324503311258276) internal successors, (795), 409 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:16,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:20:16,985 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;@79e7c228, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:20:16,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-22 00:20:16,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 410 states, 302 states have (on average 2.6324503311258276) internal successors, (795), 409 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:16,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 00:20:16,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:16,995 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 00:20:17,007 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-22 00:20:17,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:17,012 INFO L85 PathProgramCache]: Analyzing trace with hash 687, now seen corresponding path program 1 times [2022-11-22 00:20:17,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:17,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668821259] [2022-11-22 00:20:17,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:17,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:17,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:17,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:17,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668821259] [2022-11-22 00:20:17,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668821259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:17,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:17,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 00:20:17,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407957363] [2022-11-22 00:20:17,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:17,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 00:20:17,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:17,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 00:20:17,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:20:17,213 INFO L87 Difference]: Start difference. First operand has 410 states, 302 states have (on average 2.6324503311258276) internal successors, (795), 409 states have internal predecessors, (795), 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) [2022-11-22 00:20:17,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:17,328 INFO L93 Difference]: Finished difference Result 402 states and 787 transitions. [2022-11-22 00:20:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 00:20:17,333 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 [2022-11-22 00:20:17,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:17,349 INFO L225 Difference]: With dead ends: 402 [2022-11-22 00:20:17,351 INFO L226 Difference]: Without dead ends: 393 [2022-11-22 00:20:17,352 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 [2022-11-22 00:20:17,357 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:17,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:20:17,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-11-22 00:20:17,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-11-22 00:20:17,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 298 states have (on average 2.5838926174496644) internal successors, (770), 392 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:17,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 770 transitions. [2022-11-22 00:20:17,449 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 770 transitions. Word has length 1 [2022-11-22 00:20:17,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:17,450 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 770 transitions. [2022-11-22 00:20:17,454 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) [2022-11-22 00:20:17,455 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 770 transitions. [2022-11-22 00:20:17,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 00:20:17,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:17,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 00:20:17,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:20:17,457 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-22 00:20:17,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:17,458 INFO L85 PathProgramCache]: Analyzing trace with hash 21751, now seen corresponding path program 1 times [2022-11-22 00:20:17,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:17,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447382569] [2022-11-22 00:20:17,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:17,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:20:17,594 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 00:20:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:20:17,693 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 00:20:17,697 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 00:20:17,699 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 29 remaining) [2022-11-22 00:20:17,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (27 of 29 remaining) [2022-11-22 00:20:17,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 29 remaining) [2022-11-22 00:20:17,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 29 remaining) [2022-11-22 00:20:17,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 29 remaining) [2022-11-22 00:20:17,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 29 remaining) [2022-11-22 00:20:17,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 29 remaining) [2022-11-22 00:20:17,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 29 remaining) [2022-11-22 00:20:17,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 29 remaining) [2022-11-22 00:20:17,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 29 remaining) [2022-11-22 00:20:17,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 29 remaining) [2022-11-22 00:20:17,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 29 remaining) [2022-11-22 00:20:17,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 29 remaining) [2022-11-22 00:20:17,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 29 remaining) [2022-11-22 00:20:17,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 29 remaining) [2022-11-22 00:20:17,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 29 remaining) [2022-11-22 00:20:17,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 29 remaining) [2022-11-22 00:20:17,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 29 remaining) [2022-11-22 00:20:17,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 29 remaining) [2022-11-22 00:20:17,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 29 remaining) [2022-11-22 00:20:17,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 29 remaining) [2022-11-22 00:20:17,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 29 remaining) [2022-11-22 00:20:17,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 29 remaining) [2022-11-22 00:20:17,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 29 remaining) [2022-11-22 00:20:17,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 29 remaining) [2022-11-22 00:20:17,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (3 of 29 remaining) [2022-11-22 00:20:17,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 29 remaining) [2022-11-22 00:20:17,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 29 remaining) [2022-11-22 00:20:17,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 29 remaining) [2022-11-22 00:20:17,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:20:17,725 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 00:20:17,731 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 00:20:17,731 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:20:17,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:20:17 BasicIcfg [2022-11-22 00:20:17,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:20:17,758 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:20:17,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:20:17,759 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:20:17,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:20:01" (3/4) ... [2022-11-22 00:20:17,764 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 00:20:17,819 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:20:17,819 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:20:17,820 INFO L158 Benchmark]: Toolchain (without parser) took 17635.66ms. Allocated memory was 151.0MB in the beginning and 245.4MB in the end (delta: 94.4MB). Free memory was 117.2MB in the beginning and 85.3MB in the end (delta: 32.0MB). Peak memory consumption was 127.7MB. Max. memory is 16.1GB. [2022-11-22 00:20:17,820 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory was 96.2MB in the beginning and 96.2MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:20:17,820 INFO L158 Benchmark]: CACSL2BoogieTranslator took 827.05ms. Allocated memory is still 151.0MB. Free memory was 116.9MB in the beginning and 78.2MB in the end (delta: 38.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-22 00:20:17,820 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.34ms. Allocated memory is still 151.0MB. Free memory was 78.2MB in the beginning and 75.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:20:17,821 INFO L158 Benchmark]: Boogie Preprocessor took 57.56ms. Allocated memory was 151.0MB in the beginning and 203.4MB in the end (delta: 52.4MB). Free memory was 75.4MB in the beginning and 174.0MB in the end (delta: -98.6MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-11-22 00:20:17,821 INFO L158 Benchmark]: RCFGBuilder took 672.32ms. Allocated memory is still 203.4MB. Free memory was 173.9MB in the beginning and 155.3MB in the end (delta: 18.6MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-11-22 00:20:17,822 INFO L158 Benchmark]: TraceAbstraction took 15940.57ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 154.2MB in the beginning and 87.4MB in the end (delta: 66.9MB). Peak memory consumption was 107.7MB. Max. memory is 16.1GB. [2022-11-22 00:20:17,822 INFO L158 Benchmark]: Witness Printer took 61.24ms. Allocated memory is still 245.4MB. Free memory was 87.4MB in the beginning and 85.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:20:17,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory was 96.2MB in the beginning and 96.2MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 827.05ms. Allocated memory is still 151.0MB. Free memory was 116.9MB in the beginning and 78.2MB in the end (delta: 38.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.34ms. Allocated memory is still 151.0MB. Free memory was 78.2MB in the beginning and 75.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.56ms. Allocated memory was 151.0MB in the beginning and 203.4MB in the end (delta: 52.4MB). Free memory was 75.4MB in the beginning and 174.0MB in the end (delta: -98.6MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * RCFGBuilder took 672.32ms. Allocated memory is still 203.4MB. Free memory was 173.9MB in the beginning and 155.3MB in the end (delta: 18.6MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * TraceAbstraction took 15940.57ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 154.2MB in the beginning and 87.4MB in the end (delta: 66.9MB). Peak memory consumption was 107.7MB. Max. memory is 16.1GB. * Witness Printer took 61.24ms. Allocated memory is still 245.4MB. Free memory was 87.4MB in the beginning and 85.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.9s, 176 PlacesBefore, 53 PlacesAfterwards, 186 TransitionsBefore, 52 TransitionsAfterwards, 2694 CoEnabledTransitionPairs, 7 FixpointIterations, 81 TrivialSequentialCompositions, 95 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 22 ConcurrentYvCompositions, 11 ChoiceCompositions, 209 TotalNumberOfCompositions, 4467 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3289, independent: 3249, independent conditional: 0, independent unconditional: 3249, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2002, independent: 1985, independent conditional: 0, independent unconditional: 1985, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2002, independent: 1985, independent conditional: 0, independent unconditional: 1985, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 56, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3289, independent: 1264, independent conditional: 0, independent unconditional: 1264, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 2002, unknown conditional: 0, unknown unconditional: 2002] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, 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 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1227] static int iSet = 4; [L1228] static int iCheck = 1; [L1229] static int a = 0; [L1230] static int b = 0; [L1237] int i, err; [L1238] COND TRUE argc != 1 [L1239] COND FALSE !(argc != 3) [L1247] EXPR \read(iSet) [L1247] pthread_t setPool[iSet]; [L1248] EXPR \read(iCheck) [L1248] pthread_t checkPool[iCheck]; [L1249] i = 0 VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1073741824, a=0, argc=3, argv={1073741826:1073741825}, argv={1073741826:1073741825}, b=0, checkPool={13:0}, i=0, iCheck={11:0}, iSet={10:0}, setPool={16:0}] [L1249] EXPR \read(iSet) [L1249] COND TRUE i < iSet - UnprovableResult [Line: 1284]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: -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: -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: -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: -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: -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: -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: -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: -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: -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: -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: -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: 1236]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1256]: 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. - UnprovableResult [Line: 1250]: 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 5 procedures, 187 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 15.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 32 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=410occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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 proved your program to be incorrect! [2022-11-22 00:20:17,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc29092-57b1-4804-9cf8-1cd9be6916f5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)