./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/bin/uautomizer --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 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 0.1.24-cad4683 [2019-11-15 21:50:30,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:50:30,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:50:30,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:50:30,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:50:30,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:50:30,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:50:30,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:50:30,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:50:30,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:50:30,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:50:30,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:50:30,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:50:30,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:50:30,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:50:30,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:50:30,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:50:30,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:50:30,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:50:30,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:50:30,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:50:30,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:50:30,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:50:30,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:50:30,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:50:30,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:50:30,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:50:30,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:50:30,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:50:30,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:50:30,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:50:30,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:50:30,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:50:30,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:50:30,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:50:30,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:50:30,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:50:30,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:50:30,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:50:30,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:50:30,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:50:30,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-15 21:50:30,915 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:50:30,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:50:30,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:50:30,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:50:30,917 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:50:30,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:50:30,917 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:50:30,917 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:50:30,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:50:30,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:50:30,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:50:30,919 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 21:50:30,920 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 21:50:30,920 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-15 21:50:30,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:50:30,920 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:50:30,921 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:50:30,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:50:30,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:50:30,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:50:30,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:50:30,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:50:30,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:50:30,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:50:30,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:50:30,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:50:30,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/bin/uautomizer 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 -> 95e3931fe811aa62c0e25f30e6d631683a52857f [2019-11-15 21:50:30,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:50:30,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:50:30,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:50:30,990 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:50:30,990 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:50:30,991 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/bin/uautomizer/../../sv-benchmarks/c/memsafety-ext3/scopes1.c [2019-11-15 21:50:31,056 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/bin/uautomizer/data/e78bf54b6/4a1602a140dc402f844c3c64cb984083/FLAG20e9d3288 [2019-11-15 21:50:31,474 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:50:31,474 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/sv-benchmarks/c/memsafety-ext3/scopes1.c [2019-11-15 21:50:31,479 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/bin/uautomizer/data/e78bf54b6/4a1602a140dc402f844c3c64cb984083/FLAG20e9d3288 [2019-11-15 21:50:31,914 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/bin/uautomizer/data/e78bf54b6/4a1602a140dc402f844c3c64cb984083 [2019-11-15 21:50:31,916 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:50:31,917 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 21:50:31,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:50:31,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:50:31,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:50:31,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:50:31" (1/1) ... [2019-11-15 21:50:31,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ff138a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:50:31, skipping insertion in model container [2019-11-15 21:50:31,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:50:31" (1/1) ... [2019-11-15 21:50:31,932 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:50:31,946 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:50:32,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:50:32,223 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:50:32,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:50:32,258 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:50:32,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:50:32 WrapperNode [2019-11-15 21:50:32,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:50:32,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:50:32,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:50:32,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:50:32,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:50:32" (1/1) ... [2019-11-15 21:50:32,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:50:32" (1/1) ... [2019-11-15 21:50:32,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:50:32" (1/1) ... [2019-11-15 21:50:32,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:50:32" (1/1) ... [2019-11-15 21:50:32,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:50:32" (1/1) ... [2019-11-15 21:50:32,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:50:32" (1/1) ... [2019-11-15 21:50:32,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:50:32" (1/1) ... [2019-11-15 21:50:32,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:50:32,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:50:32,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:50:32,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:50:32,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:50:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/bin/uautomizer/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 [2019-11-15 21:50:32,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 21:50:32,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:50:32,373 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 21:50:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-15 21:50:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 21:50:32,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:50:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 21:50:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:50:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 21:50:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 21:50:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:50:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 21:50:32,677 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:50:32,677 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-15 21:50:32,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:50:32 BoogieIcfgContainer [2019-11-15 21:50:32,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:50:32,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:50:32,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:50:32,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:50:32,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:50:31" (1/3) ... [2019-11-15 21:50:32,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547cd936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:50:32, skipping insertion in model container [2019-11-15 21:50:32,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:50:32" (2/3) ... [2019-11-15 21:50:32,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547cd936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:50:32, skipping insertion in model container [2019-11-15 21:50:32,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:50:32" (3/3) ... [2019-11-15 21:50:32,686 INFO L109 eAbstractionObserver]: Analyzing ICFG scopes1.c [2019-11-15 21:50:32,696 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:50:32,703 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-11-15 21:50:32,713 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-15 21:50:32,732 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:50:32,733 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 21:50:32,733 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:50:32,733 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:50:32,733 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:50:32,733 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:50:32,734 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:50:32,734 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:50:32,747 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-11-15 21:50:32,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 21:50:32,757 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:50:32,758 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:50:32,759 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-11-15 21:50:32,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:50:32,765 INFO L82 PathProgramCache]: Analyzing trace with hash -2123086958, now seen corresponding path program 1 times [2019-11-15 21:50:32,773 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:50:32,773 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003765935] [2019-11-15 21:50:32,774 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:50:32,774 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:50:32,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:50:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:50:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:50:32,924 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:50:32,925 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 21:50:32,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:50:32 BoogieIcfgContainer [2019-11-15 21:50:32,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:50:32,946 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:50:32,946 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:50:32,946 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:50:32,947 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:50:32" (3/4) ... [2019-11-15 21:50:32,949 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 21:50:32,987 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_561e0c89-327f-4fd2-8f99-fc478dbf4c6b/bin/uautomizer/witness.graphml [2019-11-15 21:50:32,987 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:50:32,989 INFO L168 Benchmark]: Toolchain (without parser) took 1071.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -143.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:50:32,990 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:50:32,990 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -177.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:50:32,991 INFO L168 Benchmark]: Boogie Preprocessor took 44.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:50:32,991 INFO L168 Benchmark]: RCFGBuilder took 374.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-15 21:50:32,992 INFO L168 Benchmark]: TraceAbstraction took 265.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:50:32,992 INFO L168 Benchmark]: Witness Printer took 41.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:50:32,995 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 341.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -177.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 374.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 265.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 41.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 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 VAL [myNumberB={-1:0}, myPointerA={-2:0}, myPointerB={-1:0}] [L16] \read(*myPointerA) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 5 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 7 NumberOfCodeBlocks, 7 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...