./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI --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 95e3931fe811aa62c0e25f30e6d631683a52857f .................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2021-10-11 02:32:45,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:45,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:45,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:45,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:45,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:45,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:45,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:45,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:45,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:45,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:45,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:45,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:45,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:45,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:45,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:45,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:45,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:45,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:45,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:46,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:46,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:46,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:46,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:46,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:46,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:46,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:46,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:46,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:46,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:46,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:46,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:46,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:46,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:46,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:46,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:46,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:46,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:46,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:46,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:46,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:46,029 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-11 02:32:46,083 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:46,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:46,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:46,085 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:46,085 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:46,086 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:46,086 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:46,086 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:46,086 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:46,087 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:46,088 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:46,088 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:46,088 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:46,089 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:46,089 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:46,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:32:46,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:32:46,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:46,090 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:46,091 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:32:46,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:46,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:46,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:46,092 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:32:46,092 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:32:46,092 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:32:46,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:46,094 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:46,094 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:46,095 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:46,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:46,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:46,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:46,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:46,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:46,096 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:46,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:46,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:46,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:46,097 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_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95e3931fe811aa62c0e25f30e6d631683a52857f [2021-10-11 02:32:46,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:46,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:46,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:46,475 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:46,477 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:46,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/memsafety-ext3/scopes1.c [2021-10-11 02:32:46,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI/data/783340d17/f02bc563c66b4a39a7fe6960b5e7bc70/FLAG9d61cf996 [2021-10-11 02:32:47,094 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:47,096 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/sv-benchmarks/c/memsafety-ext3/scopes1.c [2021-10-11 02:32:47,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI/data/783340d17/f02bc563c66b4a39a7fe6960b5e7bc70/FLAG9d61cf996 [2021-10-11 02:32:47,468 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI/data/783340d17/f02bc563c66b4a39a7fe6960b5e7bc70 [2021-10-11 02:32:47,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:47,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:47,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:47,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:47,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:47,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:47" (1/1) ... [2021-10-11 02:32:47,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cecde4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:47, skipping insertion in model container [2021-10-11 02:32:47,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:47" (1/1) ... [2021-10-11 02:32:47,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:47,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:47,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:47,681 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:47,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:47,713 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:47,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:47 WrapperNode [2021-10-11 02:32:47,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:47,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:47,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:47,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:47,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:47" (1/1) ... [2021-10-11 02:32:47,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:47" (1/1) ... [2021-10-11 02:32:47,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:47,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:47,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:47,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:47,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:47" (1/1) ... [2021-10-11 02:32:47,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:47" (1/1) ... [2021-10-11 02:32:47,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:47" (1/1) ... [2021-10-11 02:32:47,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:47" (1/1) ... [2021-10-11 02:32:47,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:47" (1/1) ... [2021-10-11 02:32:47,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:47" (1/1) ... [2021-10-11 02:32:47,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:47" (1/1) ... [2021-10-11 02:32:47,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:47,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:47,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:47,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:47,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:47" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:47,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:32:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:32:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:32:48,098 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:48,098 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:32:48,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:48 BoogieIcfgContainer [2021-10-11 02:32:48,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:48,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:48,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:48,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:48,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:47" (1/3) ... [2021-10-11 02:32:48,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca626d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:48, skipping insertion in model container [2021-10-11 02:32:48,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:47" (2/3) ... [2021-10-11 02:32:48,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca626d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:48, skipping insertion in model container [2021-10-11 02:32:48,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:48" (3/3) ... [2021-10-11 02:32:48,109 INFO L111 eAbstractionObserver]: Analyzing ICFG scopes1.c [2021-10-11 02:32:48,122 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:48,126 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2021-10-11 02:32:48,137 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-11 02:32:48,156 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:48,156 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:32:48,156 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:48,157 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:48,157 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:48,157 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:48,157 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:48,157 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:48,168 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2021-10-11 02:32:48,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:32:48,174 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:48,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:32:48,175 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:32:48,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:48,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1399, now seen corresponding path program 1 times [2021-10-11 02:32:48,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:48,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342115632] [2021-10-11 02:32:48,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:48,321 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:48,369 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:48,391 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:32:48,391 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:32:48,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:32:48,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:48 BoogieIcfgContainer [2021-10-11 02:32:48,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:48,414 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:48,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:48,415 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:48,415 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:48" (3/4) ... [2021-10-11 02:32:48,417 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:32:48,502 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c87cb0fb-46ee-4e00-8b4e-d34f003a67b7/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:32:48,502 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:48,504 INFO L168 Benchmark]: Toolchain (without parser) took 1031.34 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 51.2 MB in the beginning and 84.6 MB in the end (delta: -33.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:48,505 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 88.1 MB. Free memory was 67.4 MB in the beginning and 67.4 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:48,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.03 ms. Allocated memory is still 88.1 MB. Free memory was 51.1 MB in the beginning and 66.9 MB in the end (delta: -15.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:48,506 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.34 ms. Allocated memory is still 88.1 MB. Free memory was 66.9 MB in the beginning and 65.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:48,507 INFO L168 Benchmark]: Boogie Preprocessor took 18.28 ms. Allocated memory is still 88.1 MB. Free memory was 65.5 MB in the beginning and 64.5 MB in the end (delta: 909.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:48,508 INFO L168 Benchmark]: RCFGBuilder took 335.06 ms. Allocated memory is still 88.1 MB. Free memory was 64.5 MB in the beginning and 50.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:48,508 INFO L168 Benchmark]: TraceAbstraction took 310.43 ms. Allocated memory is still 88.1 MB. Free memory was 49.9 MB in the beginning and 38.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:48,509 INFO L168 Benchmark]: Witness Printer took 88.29 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 38.0 MB in the beginning and 84.6 MB in the end (delta: -46.6 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:48,523 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 88.1 MB. Free memory was 67.4 MB in the beginning and 67.4 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 240.03 ms. Allocated memory is still 88.1 MB. Free memory was 51.1 MB in the beginning and 66.9 MB in the end (delta: -15.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.34 ms. Allocated memory is still 88.1 MB. Free memory was 66.9 MB in the beginning and 65.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.28 ms. Allocated memory is still 88.1 MB. Free memory was 65.5 MB in the beginning and 64.5 MB in the end (delta: 909.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 335.06 ms. Allocated memory is still 88.1 MB. Free memory was 64.5 MB in the beginning and 50.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 310.43 ms. Allocated memory is still 88.1 MB. Free memory was 49.9 MB in the beginning and 38.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 88.29 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 38.0 MB in the beginning and 84.6 MB in the end (delta: -46.6 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 16]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L4] int *myPointerA = ((void*) 0); [L5] int *myPointerB = ((void*) 0); [L8] int myNumberA = 7; [L9] myPointerA = &myNumberA [L8] int myNumberA = 7; [L13] int myNumberB = 3; [L14] myPointerB = &myNumberB [L16] \read(*myPointerA) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=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! Received shutdown request...