./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.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/ldv-memsafety/ArraysOfVariableLength_-read.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 aeae4642ea0f346b37f312868ec7e7128e333d20 ........................................................................................................................................................................................................................................................................... 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 20:10:20,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:10:20,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:10:20,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:10:20,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:10:20,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:10:20,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:10:20,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:10:20,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:10:20,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:10:20,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:10:20,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:10:20,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:10:20,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:10:20,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:10:20,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:10:20,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:10:20,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:10:20,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:10:20,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:10:20,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:10:20,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:10:20,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:10:20,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:10:20,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:10:20,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:10:20,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:10:20,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:10:20,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:10:20,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:10:20,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:10:20,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:10:20,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:10:20,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:10:20,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:10:20,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:10:20,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:10:20,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:10:20,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:10:20,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:10:20,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:10:20,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 20:10:20,426 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:10:20,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:10:20,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:10:20,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:10:20,430 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:10:20,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:10:20,431 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:10:20,431 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:10:20,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:10:20,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:10:20,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:10:20,434 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:10:20,434 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:10:20,434 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:10:20,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:10:20,435 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:10:20,435 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:10:20,435 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:10:20,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:10:20,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:10:20,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:10:20,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:10:20,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:10:20,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:10:20,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:10:20,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:10:20,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:10:20,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:10:20,439 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 -> aeae4642ea0f346b37f312868ec7e7128e333d20 [2019-11-28 20:10:20,742 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:10:20,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:10:20,770 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:10:20,772 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:10:20,772 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:10:20,774 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2019-11-28 20:10:20,850 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c52e9237/0289cf0951b8444092d98566d47c35e8/FLAG40c118a1c [2019-11-28 20:10:21,317 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:10:21,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2019-11-28 20:10:21,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c52e9237/0289cf0951b8444092d98566d47c35e8/FLAG40c118a1c [2019-11-28 20:10:21,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c52e9237/0289cf0951b8444092d98566d47c35e8 [2019-11-28 20:10:21,695 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:10:21,697 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:10:21,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:10:21,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:10:21,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:10:21,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:10:21" (1/1) ... [2019-11-28 20:10:21,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b275abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:21, skipping insertion in model container [2019-11-28 20:10:21,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:10:21" (1/1) ... [2019-11-28 20:10:21,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:10:21,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:10:21,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:10:21,936 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:10:21,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:10:21,966 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:10:21,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:21 WrapperNode [2019-11-28 20:10:21,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:10:21,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:10:21,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:10:21,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:10:22,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:21" (1/1) ... [2019-11-28 20:10:22,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:21" (1/1) ... [2019-11-28 20:10:22,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:21" (1/1) ... [2019-11-28 20:10:22,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:21" (1/1) ... [2019-11-28 20:10:22,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:21" (1/1) ... [2019-11-28 20:10:22,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:21" (1/1) ... [2019-11-28 20:10:22,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:21" (1/1) ... [2019-11-28 20:10:22,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:10:22,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:10:22,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:10:22,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:10:22,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:21" (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 20:10:22,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:10:22,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:10:22,135 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-11-28 20:10:22,136 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:10:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-11-28 20:10:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:10:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:10:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:10:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:10:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:10:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:10:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:10:22,468 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:10:22,468 INFO L287 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-28 20:10:22,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:10:22 BoogieIcfgContainer [2019-11-28 20:10:22,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:10:22,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:10:22,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:10:22,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:10:22,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:10:21" (1/3) ... [2019-11-28 20:10:22,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6accead0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:10:22, skipping insertion in model container [2019-11-28 20:10:22,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:21" (2/3) ... [2019-11-28 20:10:22,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6accead0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:10:22, skipping insertion in model container [2019-11-28 20:10:22,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:10:22" (3/3) ... [2019-11-28 20:10:22,480 INFO L109 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_-read.c [2019-11-28 20:10:22,488 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:10:22,495 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-28 20:10:22,507 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-28 20:10:22,527 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:10:22,527 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:10:22,527 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:10:22,528 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:10:22,528 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:10:22,528 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:10:22,528 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:10:22,528 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:10:22,542 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-11-28 20:10:22,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 20:10:22,551 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:10:22,551 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:10:22,552 INFO L410 AbstractCegarLoop]: === Iteration 1 === [fooErr1REQUIRES_VIOLATION, fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:10:22,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:10:22,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1189570050, now seen corresponding path program 1 times [2019-11-28 20:10:22,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:10:22,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053594863] [2019-11-28 20:10:22,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:10:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:10:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:10:22,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:10:22,739 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053594863] [2019-11-28 20:10:22,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:10:22,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:10:22,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667926758] [2019-11-28 20:10:22,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:10:22,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:10:22,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:10:22,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:10:22,764 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 4 states. [2019-11-28 20:10:22,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:10:22,974 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2019-11-28 20:10:22,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:10:22,977 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 20:10:22,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:10:22,991 INFO L225 Difference]: With dead ends: 46 [2019-11-28 20:10:22,992 INFO L226 Difference]: Without dead ends: 43 [2019-11-28 20:10:22,996 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:10:23,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-28 20:10:23,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2019-11-28 20:10:23,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 20:10:23,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2019-11-28 20:10:23,058 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 10 [2019-11-28 20:10:23,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:10:23,059 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2019-11-28 20:10:23,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:10:23,059 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2019-11-28 20:10:23,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 20:10:23,060 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:10:23,060 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:10:23,061 INFO L410 AbstractCegarLoop]: === Iteration 2 === [fooErr1REQUIRES_VIOLATION, fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:10:23,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:10:23,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1775375512, now seen corresponding path program 1 times [2019-11-28 20:10:23,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:10:23,062 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213085741] [2019-11-28 20:10:23,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:10:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:10:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:10:23,140 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:10:23,141 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:10:23,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:10:23 BoogieIcfgContainer [2019-11-28 20:10:23,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:10:23,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:10:23,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:10:23,166 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:10:23,167 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:10:22" (3/4) ... [2019-11-28 20:10:23,169 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:10:23,211 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:10:23,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:10:23,214 INFO L168 Benchmark]: Toolchain (without parser) took 1516.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -117.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:10:23,215 INFO L168 Benchmark]: CDTParser took 0.39 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 20:10:23,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.35 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:10:23,217 INFO L168 Benchmark]: Boogie Preprocessor took 111.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:10:23,218 INFO L168 Benchmark]: RCFGBuilder took 390.78 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: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:10:23,219 INFO L168 Benchmark]: TraceAbstraction took 694.77 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: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:10:23,219 INFO L168 Benchmark]: Witness Printer took 45.67 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 20:10:23,223 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 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 269.35 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 111.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 390.78 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: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 694.77 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: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. * Witness Printer took 45.67 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: 15]: array index can be out of bounds array index can be out of bounds We found a FailurePath: [L21] int i, b[100]; [L22] i = 0 VAL [b={2:0}, i=0] [L22] COND TRUE i < 100 VAL [b={2:0}, i=0] [L23] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={2:0}] [L13] int a[n], i; [L14] i = 0 VAL [\old(n)=0, \old(size)=0, b={2:0}, b={2:0}, i=0, n=0, size=0] [L14] COND TRUE i < size + 1 VAL [\old(n)=0, \old(size)=0, b={2:0}, b={2:0}, i=0, n=0, size=0] [L15] a[i] VAL [\old(n)=0, \old(size)=0, b={2:0}, b={2:0}, i=0, n=0, size=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 39 locations, 8 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 27 SDslu, 14 SDs, 0 SdLazy, 53 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...