./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 f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/memsafety-ext3/scopes1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.1.25-f470102 [2019-11-28 20:19:09,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:19:09,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:19:09,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:19:09,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:19:09,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:19:09,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:19:09,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:19:09,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:19:09,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:19:09,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:19:09,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:19:09,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:19:09,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:19:09,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:19:09,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:19:09,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:19:09,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:19:09,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:19:09,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:19:09,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:19:09,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:19:09,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:19:09,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:19:09,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:19:09,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:19:09,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:19:09,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:19:09,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:19:09,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:19:09,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:19:09,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:19:09,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:19:09,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:19:09,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:19:09,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:19:09,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:19:09,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:19:09,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:19:09,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:19:09,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:19:09,479 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 20:19:09,495 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:19:09,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:19:09,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:19:09,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:19:09,497 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:19:09,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:19:09,498 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:19:09,498 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:19:09,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:19:09,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:19:09,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:19:09,499 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:19:09,499 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:19:09,500 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:19:09,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:19:09,500 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:19:09,501 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:19:09,501 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:19:09,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:19:09,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:19:09,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:19:09,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:19:09,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:19:09,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:19:09,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:19:09,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:19:09,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:19:09,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:19:09,504 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 [2019-11-28 20:19:09,816 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:19:09,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:19:09,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:19:09,837 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:19:09,838 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:19:09,838 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/scopes1.c [2019-11-28 20:19:09,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c17c951ce/6e5543e7f5ac4dae8d532e1414a69a3e/FLAGd622602cc [2019-11-28 20:19:10,409 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:19:10,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/scopes1.c [2019-11-28 20:19:10,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c17c951ce/6e5543e7f5ac4dae8d532e1414a69a3e/FLAGd622602cc [2019-11-28 20:19:10,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c17c951ce/6e5543e7f5ac4dae8d532e1414a69a3e [2019-11-28 20:19:10,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:19:10,783 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:19:10,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:19:10,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:19:10,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:19:10,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:19:10" (1/1) ... [2019-11-28 20:19:10,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318a92e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:10, skipping insertion in model container [2019-11-28 20:19:10,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:19:10" (1/1) ... [2019-11-28 20:19:10,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:19:10,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:19:11,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:19:11,019 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:19:11,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:19:11,053 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:19:11,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11 WrapperNode [2019-11-28 20:19:11,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:19:11,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:19:11,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:19:11,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:19:11,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... [2019-11-28 20:19:11,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:19:11,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:19:11,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:19:11,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:19:11,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:19:11,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:19:11,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:19:11,224 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:19:11,224 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-28 20:19:11,224 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:19:11,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:19:11,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 20:19:11,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:19:11,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:19:11,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:19:11,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:19:11,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:19:11,453 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:19:11,453 INFO L287 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-28 20:19:11,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:11 BoogieIcfgContainer [2019-11-28 20:19:11,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:19:11,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:19:11,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:19:11,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:19:11,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:19:10" (1/3) ... [2019-11-28 20:19:11,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dcb69e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:19:11, skipping insertion in model container [2019-11-28 20:19:11,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:11" (2/3) ... [2019-11-28 20:19:11,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dcb69e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:19:11, skipping insertion in model container [2019-11-28 20:19:11,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:11" (3/3) ... [2019-11-28 20:19:11,464 INFO L109 eAbstractionObserver]: Analyzing ICFG scopes1.c [2019-11-28 20:19:11,478 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:19:11,493 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-11-28 20:19:11,532 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-28 20:19:11,579 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:19:11,580 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:19:11,580 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:19:11,580 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:19:11,580 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:19:11,581 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:19:11,581 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:19:11,581 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:19:11,597 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-11-28 20:19:11,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:19:11,608 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:11,609 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:11,610 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:19:11,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:11,615 INFO L82 PathProgramCache]: Analyzing trace with hash -2123086958, now seen corresponding path program 1 times [2019-11-28 20:19:11,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:11,623 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920278491] [2019-11-28 20:19:11,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:19:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:19:11,782 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:19:11,782 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:19:11,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:19:11 BoogieIcfgContainer [2019-11-28 20:19:11,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:19:11,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:19:11,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:19:11,806 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:19:11,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:11" (3/4) ... [2019-11-28 20:19:11,809 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:19:11,853 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:19:11,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:19:11,856 INFO L168 Benchmark]: Toolchain (without parser) took 1072.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -140.5 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:11,857 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:19:11,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.14 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:11,859 INFO L168 Benchmark]: Boogie Preprocessor took 110.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:11,860 INFO L168 Benchmark]: RCFGBuilder took 288.04 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:11,861 INFO L168 Benchmark]: TraceAbstraction took 348.70 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:11,861 INFO L168 Benchmark]: Witness Printer took 48.73 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. [2019-11-28 20:19:11,865 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.14 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 110.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 288.04 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 348.70 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Witness Printer took 48.73 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. * 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={8:0}, myPointerA={5:0}, myPointerB={8:0}] [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...