./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e5aa7fc476b23cf3c590ec0e83134b87eb137366becc080b05d62a7d4a14bb8b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:08:36,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:08:36,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:08:36,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:08:36,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:08:36,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:08:36,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:08:36,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:08:36,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:08:36,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:08:36,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:08:36,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:08:36,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:08:36,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:08:36,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:08:36,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:08:36,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:08:36,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:08:36,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:08:36,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:08:36,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:08:36,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:08:36,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:08:36,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:08:36,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:08:36,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:08:36,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:08:36,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:08:36,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:08:36,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:08:36,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:08:36,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:08:36,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:08:36,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:08:36,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:08:36,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:08:36,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:08:36,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:08:36,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:08:36,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:08:36,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:08:36,685 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-20 06:08:36,744 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:08:36,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:08:36,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:08:36,753 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:08:36,755 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:08:36,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:08:36,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:08:36,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:08:36,757 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:08:36,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:08:36,759 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:08:36,759 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:08:36,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:08:36,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:08:36,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:08:36,760 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 06:08:36,760 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 06:08:36,761 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-20 06:08:36,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:08:36,761 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 06:08:36,762 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:08:36,762 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:08:36,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:08:36,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:08:36,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:08:36,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:08:36,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:08:36,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:08:36,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:08:36,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:08:36,766 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:08:36,767 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_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5aa7fc476b23cf3c590ec0e83134b87eb137366becc080b05d62a7d4a14bb8b [2021-11-20 06:08:37,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:08:37,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:08:37,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:08:37,205 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:08:37,205 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:08:37,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/memsafety-ext3/scopes5.c [2021-11-20 06:08:37,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/data/2d3fc672c/f5f85382defe455282e9e91df2955da3/FLAG6ce8357ee [2021-11-20 06:08:37,817 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:08:37,818 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/sv-benchmarks/c/memsafety-ext3/scopes5.c [2021-11-20 06:08:37,827 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/data/2d3fc672c/f5f85382defe455282e9e91df2955da3/FLAG6ce8357ee [2021-11-20 06:08:38,186 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/data/2d3fc672c/f5f85382defe455282e9e91df2955da3 [2021-11-20 06:08:38,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:08:38,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:08:38,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:08:38,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:08:38,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:08:38,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:08:38" (1/1) ... [2021-11-20 06:08:38,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5256ebe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:38, skipping insertion in model container [2021-11-20 06:08:38,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:08:38" (1/1) ... [2021-11-20 06:08:38,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:08:38,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:08:38,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:08:38,426 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:08:38,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:08:38,458 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:08:38,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:38 WrapperNode [2021-11-20 06:08:38,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:08:38,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:08:38,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:08:38,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:08:38,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:38" (1/1) ... [2021-11-20 06:08:38,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:38" (1/1) ... [2021-11-20 06:08:38,510 INFO L137 Inliner]: procedures = 7, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12 [2021-11-20 06:08:38,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:08:38,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:08:38,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:08:38,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:08:38,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:38" (1/1) ... [2021-11-20 06:08:38,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:38" (1/1) ... [2021-11-20 06:08:38,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:38" (1/1) ... [2021-11-20 06:08:38,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:38" (1/1) ... [2021-11-20 06:08:38,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:38" (1/1) ... [2021-11-20 06:08:38,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:38" (1/1) ... [2021-11-20 06:08:38,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:38" (1/1) ... [2021-11-20 06:08:38,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:08:38,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:08:38,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:08:38,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:08:38,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:38" (1/1) ... [2021-11-20 06:08:38,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:08:38,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:08:38,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:08:38,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:08:38,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:08:38,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:08:38,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:08:38,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:08:38,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:08:38,762 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:08:38,766 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:08:38,887 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:08:38,892 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:08:38,893 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:08:38,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:08:38 BoogieIcfgContainer [2021-11-20 06:08:38,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:08:38,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:08:38,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:08:38,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:08:38,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:08:38" (1/3) ... [2021-11-20 06:08:38,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d3f6fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:08:38, skipping insertion in model container [2021-11-20 06:08:38,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:38" (2/3) ... [2021-11-20 06:08:38,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d3f6fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:08:38, skipping insertion in model container [2021-11-20 06:08:38,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:08:38" (3/3) ... [2021-11-20 06:08:38,906 INFO L111 eAbstractionObserver]: Analyzing ICFG scopes5.c [2021-11-20 06:08:38,913 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:08:38,914 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-20 06:08:38,968 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:08:38,977 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 [2021-11-20 06:08:38,977 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-20 06:08:38,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 9 states have internal predecessors, (10), 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) [2021-11-20 06:08:39,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 06:08:39,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:08:39,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 06:08:39,004 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 06:08:39,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:08:39,012 INFO L85 PathProgramCache]: Analyzing trace with hash 925608, now seen corresponding path program 1 times [2021-11-20 06:08:39,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:08:39,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082115488] [2021-11-20 06:08:39,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:08:39,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:08:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:08:39,134 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:08:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:08:39,168 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:08:39,171 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 06:08:39,173 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0REQUIRES_VIOLATION (2 of 3 remaining) [2021-11-20 06:08:39,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION (1 of 3 remaining) [2021-11-20 06:08:39,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2021-11-20 06:08:39,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:08:39,184 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-20 06:08:39,189 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:08:39,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:08:39 BoogieIcfgContainer [2021-11-20 06:08:39,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:08:39,209 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:08:39,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:08:39,210 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:08:39,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:08:38" (3/4) ... [2021-11-20 06:08:39,213 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-20 06:08:39,251 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:08:39,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:08:39,254 INFO L158 Benchmark]: Toolchain (without parser) took 1062.36ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 48.4MB in the beginning and 73.7MB in the end (delta: -25.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-11-20 06:08:39,254 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory was 64.6MB in the beginning and 64.6MB in the end (delta: 68.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:08:39,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.23ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 48.2MB in the beginning and 99.2MB in the end (delta: -50.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-11-20 06:08:39,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.59ms. Allocated memory is still 121.6MB. Free memory was 99.2MB in the beginning and 97.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:08:39,257 INFO L158 Benchmark]: Boogie Preprocessor took 50.94ms. Allocated memory is still 121.6MB. Free memory was 97.9MB in the beginning and 96.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:08:39,258 INFO L158 Benchmark]: RCFGBuilder took 331.83ms. Allocated memory is still 121.6MB. Free memory was 96.8MB in the beginning and 88.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:08:39,259 INFO L158 Benchmark]: TraceAbstraction took 310.68ms. Allocated memory is still 121.6MB. Free memory was 87.8MB in the beginning and 75.5MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 06:08:39,260 INFO L158 Benchmark]: Witness Printer took 42.72ms. Allocated memory is still 121.6MB. Free memory was 75.5MB in the beginning and 74.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:08:39,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory was 64.6MB in the beginning and 64.6MB in the end (delta: 68.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.23ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 48.2MB in the beginning and 99.2MB in the end (delta: -50.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.59ms. Allocated memory is still 121.6MB. Free memory was 99.2MB in the beginning and 97.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.94ms. Allocated memory is still 121.6MB. Free memory was 97.9MB in the beginning and 96.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 331.83ms. Allocated memory is still 121.6MB. Free memory was 96.8MB in the beginning and 88.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 310.68ms. Allocated memory is still 121.6MB. Free memory was 87.8MB in the beginning and 75.5MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 42.72ms. Allocated memory is still 121.6MB. Free memory was 75.5MB in the beginning and 74.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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, 10 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: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 4 NumberOfCodeBlocks, 4 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! [2021-11-20 06:08:39,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1052c021-132f-4353-8849-efe183a2c767/bin/uautomizer-DQz5hQGWxF/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)