./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 30f4e4ab 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 0.1.24-30f4e4a [2019-11-28 02:37:39,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:37:39,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:37:39,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:37:39,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:37:39,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:37:39,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:37:39,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:37:39,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:37:39,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:37:39,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:37:39,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:37:39,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:37:39,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:37:39,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:37:39,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:37:39,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:37:39,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:37:39,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:37:39,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:37:39,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:37:39,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:37:39,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:37:39,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:37:39,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:37:39,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:37:39,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:37:39,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:37:39,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:37:39,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:37:39,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:37:39,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:37:39,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:37:39,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:37:39,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:37:39,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:37:39,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:37:39,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:37:39,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:37:39,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:37:39,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:37:39,284 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 02:37:39,299 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:37:39,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:37:39,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:37:39,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:37:39,301 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:37:39,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:37:39,302 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:37:39,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:37:39,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:37:39,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:37:39,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:37:39,303 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:37:39,304 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:37:39,304 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 02:37:39,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:37:39,304 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:37:39,305 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:37:39,305 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:37:39,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:37:39,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:37:39,306 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:37:39,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:37:39,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:37:39,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:37:39,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:37:39,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:37:39,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:37:39,308 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 02:37:39,660 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:37:39,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:37:39,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:37:39,681 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:37:39,682 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:37:39,683 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2019-11-28 02:37:39,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3229bb9f/579cef7c57784e01aca16b4bf316413f/FLAG10482830d [2019-11-28 02:37:40,243 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:37:40,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2019-11-28 02:37:40,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3229bb9f/579cef7c57784e01aca16b4bf316413f/FLAG10482830d [2019-11-28 02:37:40,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3229bb9f/579cef7c57784e01aca16b4bf316413f [2019-11-28 02:37:40,611 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:37:40,612 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:37:40,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:37:40,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:37:40,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:37:40,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:37:40" (1/1) ... [2019-11-28 02:37:40,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9736e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:40, skipping insertion in model container [2019-11-28 02:37:40,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:37:40" (1/1) ... [2019-11-28 02:37:40,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:37:40,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:37:40,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:37:40,873 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:37:40,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:37:40,916 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:37:40,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:40 WrapperNode [2019-11-28 02:37:40,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:37:40,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:37:40,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:37:40,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:37:41,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:40" (1/1) ... [2019-11-28 02:37:41,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:40" (1/1) ... [2019-11-28 02:37:41,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:40" (1/1) ... [2019-11-28 02:37:41,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:40" (1/1) ... [2019-11-28 02:37:41,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:40" (1/1) ... [2019-11-28 02:37:41,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:40" (1/1) ... [2019-11-28 02:37:41,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:40" (1/1) ... [2019-11-28 02:37:41,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:37:41,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:37:41,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:37:41,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:37:41,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:40" (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 02:37:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:37:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:37:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-11-28 02:37:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:37:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-11-28 02:37:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 02:37:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:37:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 02:37:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 02:37:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:37:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:37:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:37:41,458 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:37:41,459 INFO L297 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-28 02:37:41,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:37:41 BoogieIcfgContainer [2019-11-28 02:37:41,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:37:41,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:37:41,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:37:41,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:37:41,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:37:40" (1/3) ... [2019-11-28 02:37:41,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f9a506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:37:41, skipping insertion in model container [2019-11-28 02:37:41,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:40" (2/3) ... [2019-11-28 02:37:41,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f9a506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:37:41, skipping insertion in model container [2019-11-28 02:37:41,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:37:41" (3/3) ... [2019-11-28 02:37:41,471 INFO L109 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_-read.c [2019-11-28 02:37:41,483 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:37:41,491 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-28 02:37:41,502 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-28 02:37:41,522 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:37:41,522 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:37:41,522 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:37:41,522 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:37:41,522 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:37:41,522 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:37:41,523 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:37:41,523 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:37:41,540 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-11-28 02:37:41,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 02:37:41,549 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:37:41,550 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:37:41,551 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 02:37:41,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:37:41,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1189570050, now seen corresponding path program 1 times [2019-11-28 02:37:41,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:37:41,563 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628643683] [2019-11-28 02:37:41,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:37:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:37:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:37:41,758 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 02:37:41,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628643683] [2019-11-28 02:37:41,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:37:41,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 02:37:41,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432275514] [2019-11-28 02:37:41,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:37:41,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:37:41,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:37:41,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:37:41,787 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 4 states. [2019-11-28 02:37:41,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:37:41,995 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2019-11-28 02:37:41,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:37:41,997 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 02:37:41,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:37:42,008 INFO L225 Difference]: With dead ends: 46 [2019-11-28 02:37:42,008 INFO L226 Difference]: Without dead ends: 43 [2019-11-28 02:37:42,012 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 02:37:42,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-28 02:37:42,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2019-11-28 02:37:42,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 02:37:42,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2019-11-28 02:37:42,072 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 10 [2019-11-28 02:37:42,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:37:42,073 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2019-11-28 02:37:42,074 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:37:42,074 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2019-11-28 02:37:42,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 02:37:42,075 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:37:42,075 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:37:42,076 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 02:37:42,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:37:42,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1775375512, now seen corresponding path program 1 times [2019-11-28 02:37:42,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:37:42,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263861408] [2019-11-28 02:37:42,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:37:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:37:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:37:42,175 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:37:42,175 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:37:42,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:37:42 BoogieIcfgContainer [2019-11-28 02:37:42,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:37:42,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:37:42,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:37:42,199 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:37:42,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:37:41" (3/4) ... [2019-11-28 02:37:42,201 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 02:37:42,243 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:37:42,243 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:37:42,246 INFO L168 Benchmark]: Toolchain (without parser) took 1632.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -134.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:37:42,247 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:37:42,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.48 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:37:42,248 INFO L168 Benchmark]: Boogie Preprocessor took 156.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -205.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:37:42,249 INFO L168 Benchmark]: RCFGBuilder took 387.00 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:37:42,250 INFO L168 Benchmark]: TraceAbstraction took 735.24 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: 40.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:37:42,250 INFO L168 Benchmark]: Witness Printer took 45.31 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 02:37:42,254 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.48 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 156.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -205.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 387.00 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 735.24 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: 40.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 11.5 GB. * Witness Printer took 45.31 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...