./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrcat_unsafe.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/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcat_unsafe.c -s /tmp/vcloud-vcloud-master/worker/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/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 7cd6be6ad7a65db7d2c064e38ccfb241f9d252c5 ............................................................................................................................................................................................................................ 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 [2019-10-22 08:59:27,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:27,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:27,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:27,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:27,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:27,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:27,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:27,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:27,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:27,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:27,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:27,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:27,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:27,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:27,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:27,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:27,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:27,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:27,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:27,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:27,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:27,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:27,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:27,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:27,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:27,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:27,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:27,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:27,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:27,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:27,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:27,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:27,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:27,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:27,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:27,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:27,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:27,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:27,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:27,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:27,543 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 08:59:27,554 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:27,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:27,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:27,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:27,555 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:27,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:27,556 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:59:27,556 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:59:27,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:59:27,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:59:27,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:27,556 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:59:27,557 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:59:27,557 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:59:27,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:59:27,557 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:59:27,557 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:27,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:27,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:27,558 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:59:27,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:59:27,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:59:27,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:27,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:59:27,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:59:27,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:59:27,559 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/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/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 -> 7cd6be6ad7a65db7d2c064e38ccfb241f9d252c5 [2019-10-22 08:59:27,581 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:27,590 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:27,592 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:27,594 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:27,594 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:27,594 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrcat_unsafe.c [2019-10-22 08:59:27,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/bin/uautomizer/data/78c47d5f5/739c0a583dc9438488ae90b4dd8ffcba/FLAG8c5411041 [2019-10-22 08:59:27,979 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:27,979 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/sv-benchmarks/c/array-memsafety/cstrcat_unsafe.c [2019-10-22 08:59:27,985 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/bin/uautomizer/data/78c47d5f5/739c0a583dc9438488ae90b4dd8ffcba/FLAG8c5411041 [2019-10-22 08:59:27,996 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/bin/uautomizer/data/78c47d5f5/739c0a583dc9438488ae90b4dd8ffcba [2019-10-22 08:59:27,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:28,000 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:59:28,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:28,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:28,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:28,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:27" (1/1) ... [2019-10-22 08:59:28,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff8676e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28, skipping insertion in model container [2019-10-22 08:59:28,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:27" (1/1) ... [2019-10-22 08:59:28,014 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:28,028 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:28,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:28,213 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:28,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:28,325 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:28,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28 WrapperNode [2019-10-22 08:59:28,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:28,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:28,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:28,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:28,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... [2019-10-22 08:59:28,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:28,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:28,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:28,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:28,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/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 [2019-10-22 08:59:28,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:59:28,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:28,402 INFO L138 BoogieDeclarations]: Found implementation of procedure cstrcat [2019-10-22 08:59:28,402 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:59:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure cstrcat [2019-10-22 08:59:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:59:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:59:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:59:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:59:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:59:28,569 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:28,570 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-22 08:59:28,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:28 BoogieIcfgContainer [2019-10-22 08:59:28,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:28,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:59:28,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:59:28,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:59:28,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:59:27" (1/3) ... [2019-10-22 08:59:28,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b153813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:28, skipping insertion in model container [2019-10-22 08:59:28,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:28" (2/3) ... [2019-10-22 08:59:28,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b153813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:28, skipping insertion in model container [2019-10-22 08:59:28,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:28" (3/3) ... [2019-10-22 08:59:28,578 INFO L109 eAbstractionObserver]: Analyzing ICFG cstrcat_unsafe.c [2019-10-22 08:59:28,595 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:59:28,610 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-10-22 08:59:28,632 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-10-22 08:59:28,660 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:59:28,660 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:59:28,660 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:59:28,660 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:28,660 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:28,661 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:59:28,661 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:28,661 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:59:28,683 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-10-22 08:59:28,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:59:28,711 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:28,712 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:28,714 INFO L410 AbstractCegarLoop]: === Iteration 1 === [cstrcatErr2REQUIRES_VIOLATION, cstrcatErr3REQUIRES_VIOLATION, cstrcatErr5REQUIRES_VIOLATION, cstrcatErr4REQUIRES_VIOLATION, cstrcatErr1REQUIRES_VIOLATION, cstrcatErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:59:28,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:28,724 INFO L82 PathProgramCache]: Analyzing trace with hash 543632158, now seen corresponding path program 1 times [2019-10-22 08:59:28,731 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:28,732 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067127969] [2019-10-22 08:59:28,732 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:28,733 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:28,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:28,826 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:28,827 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:59:28,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:59:28 BoogieIcfgContainer [2019-10-22 08:59:28,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:59:28,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:28,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:28,842 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:28,843 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:28" (3/4) ... [2019-10-22 08:59:28,845 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:59:28,877 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_03a080ad-b766-46c0-a93f-b8735c2adab8/bin/uautomizer/witness.graphml [2019-10-22 08:59:28,878 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:28,880 INFO L168 Benchmark]: Toolchain (without parser) took 879.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:28,880 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:28,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -204.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:28,881 INFO L168 Benchmark]: Boogie Preprocessor took 28.20 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. [2019-10-22 08:59:28,881 INFO L168 Benchmark]: RCFGBuilder took 215.42 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:28,882 INFO L168 Benchmark]: TraceAbstraction took 269.67 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:28,882 INFO L168 Benchmark]: Witness Printer took 35.89 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. [2019-10-22 08:59:28,884 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 325.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -204.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.20 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 215.42 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 269.67 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 35.89 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: 5]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L15] char *s1; [L16] char *s2; [L17] CALL cstrcat(s1, s2) VAL [s1={5:6}, s2={8:3}] [L3] char *s = s1; VAL [s={5:6}, s1={5:6}, s1={5:6}, s2={8:3}, s2={8:3}] [L5] \read(*s) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 7 error locations. Result: UNSAFE, OverallTime: 0.1s, 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=29occurred 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, 9 NumberOfCodeBlocks, 9 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...