./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG --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 e5aa7fc476b23cf3c590ec0e83134b87eb137366becc080b05d62a7d4a14bb8b ........................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:38:41,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:38:41,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:38:41,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:38:41,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:38:41,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:38:41,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:38:41,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:38:41,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:38:41,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:38:41,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:38:41,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:38:41,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:38:41,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:38:41,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:38:41,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:38:41,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:38:41,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:38:41,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:38:41,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:38:41,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:38:41,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:38:41,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:38:41,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:38:41,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:38:41,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:38:41,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:38:41,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:38:41,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:38:41,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:38:41,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:38:41,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:38:41,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:38:41,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:38:41,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:38:41,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:38:41,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:38:41,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:38:41,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:38:41,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:38:41,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:38:41,420 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-29 04:38:41,447 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:38:41,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:38:41,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:38:41,448 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:38:41,449 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:38:41,449 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:38:41,449 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:38:41,450 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:38:41,450 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:38:41,450 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:38:41,451 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:38:41,451 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:38:41,451 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:38:41,452 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:38:41,452 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:38:41,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:38:41,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:38:41,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:38:41,454 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:38:41,454 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:38:41,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:38:41,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:38:41,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:38:41,455 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:38:41,456 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:38:41,456 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:38:41,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:38:41,456 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:38:41,457 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:38:41,457 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:38:41,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:38:41,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:38:41,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:38:41,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:38:41,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:38:41,459 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:38:41,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:38:41,460 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:38:41,460 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:38:41,460 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5aa7fc476b23cf3c590ec0e83134b87eb137366becc080b05d62a7d4a14bb8b [2021-10-29 04:38:41,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:38:41,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:38:41,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:38:41,713 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:38:41,714 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:38:41,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/memsafety-ext3/scopes5.c [2021-10-29 04:38:41,780 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/data/baa00e3db/889f728825ea4002a1d24ba9038d27e7/FLAGbfc56ded1 [2021-10-29 04:38:42,321 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:38:42,321 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/sv-benchmarks/c/memsafety-ext3/scopes5.c [2021-10-29 04:38:42,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/data/baa00e3db/889f728825ea4002a1d24ba9038d27e7/FLAGbfc56ded1 [2021-10-29 04:38:42,698 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/data/baa00e3db/889f728825ea4002a1d24ba9038d27e7 [2021-10-29 04:38:42,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:38:42,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:38:42,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:38:42,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:38:42,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:38:42,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:38:42" (1/1) ... [2021-10-29 04:38:42,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7282e086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:42, skipping insertion in model container [2021-10-29 04:38:42,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:38:42" (1/1) ... [2021-10-29 04:38:42,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:38:42,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:38:42,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:38:42,902 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:38:42,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:38:42,954 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:38:42,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:42 WrapperNode [2021-10-29 04:38:42,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:38:42,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:38:42,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:38:42,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:38:42,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:42" (1/1) ... [2021-10-29 04:38:42,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:42" (1/1) ... [2021-10-29 04:38:42,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:38:42,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:38:42,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:38:42,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:38:43,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:42" (1/1) ... [2021-10-29 04:38:43,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:42" (1/1) ... [2021-10-29 04:38:43,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:42" (1/1) ... [2021-10-29 04:38:43,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:42" (1/1) ... [2021-10-29 04:38:43,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:42" (1/1) ... [2021-10-29 04:38:43,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:42" (1/1) ... [2021-10-29 04:38:43,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:42" (1/1) ... [2021-10-29 04:38:43,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:38:43,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:38:43,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:38:43,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:38:43,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:42" (1/1) ... [2021-10-29 04:38:43,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:38:43,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:38:43,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:38:43,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:38:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:38:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:38:43,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:38:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:38:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:38:43,338 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:38:43,339 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 04:38:43,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:38:43 BoogieIcfgContainer [2021-10-29 04:38:43,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:38:43,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:38:43,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:38:43,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:38:43,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:38:42" (1/3) ... [2021-10-29 04:38:43,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b98b2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:38:43, skipping insertion in model container [2021-10-29 04:38:43,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:42" (2/3) ... [2021-10-29 04:38:43,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b98b2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:38:43, skipping insertion in model container [2021-10-29 04:38:43,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:38:43" (3/3) ... [2021-10-29 04:38:43,356 INFO L111 eAbstractionObserver]: Analyzing ICFG scopes5.c [2021-10-29 04:38:43,368 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:38:43,368 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 04:38:43,423 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:38:43,433 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 04:38:43,434 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 04:38:43,447 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 3 states have (on average 2.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2021-10-29 04:38:43,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-29 04:38:43,453 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:38:43,453 INFO L513 BasicCegarLoop]: trace histogram [1, 1] [2021-10-29 04:38:43,454 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 04:38:43,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:38:43,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1560, now seen corresponding path program 1 times [2021-10-29 04:38:43,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:38:43,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536479445] [2021-10-29 04:38:43,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:38:43,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:38:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:38:43,579 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:38:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:38:43,630 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 04:38:43,637 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:38:43,638 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-29 04:38:43,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-29 04:38:43,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:38:43,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:38:43,645 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-29 04:38:43,648 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:38:43,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:38:43 BoogieIcfgContainer [2021-10-29 04:38:43,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:38:43,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:38:43,660 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:38:43,660 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:38:43,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:38:43" (3/4) ... [2021-10-29 04:38:43,662 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:38:43,689 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:38:43,690 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:38:43,692 INFO L168 Benchmark]: Toolchain (without parser) took 988.56 ms. Allocated memory is still 115.3 MB. Free memory was 85.1 MB in the beginning and 65.7 MB in the end (delta: 19.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:38:43,692 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 115.3 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:38:43,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.72 ms. Allocated memory is still 115.3 MB. Free memory was 85.1 MB in the beginning and 91.4 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:38:43,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.57 ms. Allocated memory is still 115.3 MB. Free memory was 91.4 MB in the beginning and 90.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:38:43,694 INFO L168 Benchmark]: Boogie Preprocessor took 37.85 ms. Allocated memory is still 115.3 MB. Free memory was 90.2 MB in the beginning and 89.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:38:43,695 INFO L168 Benchmark]: RCFGBuilder took 308.53 ms. Allocated memory is still 115.3 MB. Free memory was 89.1 MB in the beginning and 79.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:38:43,696 INFO L168 Benchmark]: TraceAbstraction took 316.11 ms. Allocated memory is still 115.3 MB. Free memory was 79.3 MB in the beginning and 67.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:38:43,696 INFO L168 Benchmark]: Witness Printer took 30.21 ms. Allocated memory is still 115.3 MB. Free memory was 67.2 MB in the beginning and 65.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:38:43,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 115.3 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 251.72 ms. Allocated memory is still 115.3 MB. Free memory was 85.1 MB in the beginning and 91.4 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.57 ms. Allocated memory is still 115.3 MB. Free memory was 91.4 MB in the beginning and 90.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.85 ms. Allocated memory is still 115.3 MB. Free memory was 90.2 MB in the beginning and 89.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 308.53 ms. Allocated memory is still 115.3 MB. Free memory was 89.1 MB in the beginning and 79.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 316.11 ms. Allocated memory is still 115.3 MB. Free memory was 79.3 MB in the beginning and 67.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 30.21 ms. Allocated memory is still 115.3 MB. Free memory was 67.2 MB in the beginning and 65.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 7]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L2] int* p; [L4] int a[10]; [L5] p = a [L7] p[0] = 1 - UnprovableResult [Line: 7]: 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 all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2021-10-29 04:38:43,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_399c5195-2c9f-42fe-bd03-53e58ca6a34c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...