./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/bubblesort_unsafe.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/array-memsafety/bubblesort_unsafe.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 e06dd3d11d320ef89a2d2c8c527408fda05cf2ff ....................................................................................................................................................................................................................................... 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 0.1.25-9a8b2e8 [2020-10-20 05:48:31,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:48:31,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:48:31,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:48:31,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:48:31,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:48:31,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:48:31,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:48:31,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:48:31,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:48:31,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:48:31,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:48:31,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:48:31,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:48:31,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:48:31,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:48:31,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:48:31,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:48:31,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:48:31,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:48:31,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:48:31,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:48:31,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:48:31,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:48:31,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:48:31,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:48:31,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:48:31,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:48:31,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:48:31,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:48:31,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:48:31,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:48:31,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:48:31,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:48:31,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:48:31,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:48:31,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:48:31,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:48:31,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:48:31,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:48:31,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:48:31,215 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:48:31,249 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:48:31,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:48:31,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:48:31,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:48:31,251 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:48:31,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:48:31,251 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:48:31,252 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:48:31,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:48:31,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:48:31,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:48:31,253 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:48:31,253 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:48:31,253 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:48:31,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:48:31,254 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:48:31,254 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:48:31,254 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:48:31,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:48:31,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:48:31,255 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:48:31,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:48:31,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:48:31,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:48:31,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:48:31,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:48:31,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:48:31,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:48:31,257 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 -> e06dd3d11d320ef89a2d2c8c527408fda05cf2ff [2020-10-20 05:48:31,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:48:31,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:48:31,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:48:31,519 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:48:31,520 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:48:31,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/bubblesort_unsafe.c [2020-10-20 05:48:31,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8490a8146/630d55e60773423bba92bf2639659281/FLAG17d6cef3a [2020-10-20 05:48:32,025 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:48:32,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/bubblesort_unsafe.c [2020-10-20 05:48:32,033 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8490a8146/630d55e60773423bba92bf2639659281/FLAG17d6cef3a [2020-10-20 05:48:32,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8490a8146/630d55e60773423bba92bf2639659281 [2020-10-20 05:48:32,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:48:32,455 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:48:32,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:48:32,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:48:32,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:48:32,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f77b7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:32, skipping insertion in model container [2020-10-20 05:48:32,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:48:32,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:48:32,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:48:32,780 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:48:32,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:48:32,810 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:48:32,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:32 WrapperNode [2020-10-20 05:48:32,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:48:32,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:48:32,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:48:32,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:48:32,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:48:32,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:48:32,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:48:32,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:48:32,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:32" (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 [2020-10-20 05:48:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:48:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:48:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure bubbleSort [2020-10-20 05:48:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:48:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 05:48:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure bubbleSort [2020-10-20 05:48:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 05:48:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 05:48:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:48:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:48:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:48:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:48:33,193 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:48:33,194 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-20 05:48:33,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:48:33 BoogieIcfgContainer [2020-10-20 05:48:33,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:48:33,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:48:33,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:48:33,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:48:33,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:48:32" (1/3) ... [2020-10-20 05:48:33,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec1ecb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:48:33, skipping insertion in model container [2020-10-20 05:48:33,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:32" (2/3) ... [2020-10-20 05:48:33,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec1ecb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:48:33, skipping insertion in model container [2020-10-20 05:48:33,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:48:33" (3/3) ... [2020-10-20 05:48:33,205 INFO L111 eAbstractionObserver]: Analyzing ICFG bubblesort_unsafe.c [2020-10-20 05:48:33,218 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:48:33,226 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-10-20 05:48:33,252 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-10-20 05:48:33,281 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:48:33,282 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:48:33,282 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:48:33,282 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:48:33,283 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:48:33,283 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:48:33,283 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:48:33,283 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:48:33,302 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-10-20 05:48:33,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 05:48:33,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:33,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:33,315 INFO L429 AbstractCegarLoop]: === Iteration 1 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-20 05:48:33,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:33,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1760941198, now seen corresponding path program 1 times [2020-10-20 05:48:33,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:48:33,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077115767] [2020-10-20 05:48:33,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:48:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:48:33,438 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:48:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:48:33,455 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:48:33,477 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 05:48:33,478 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:48:33,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 05:48:33,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:48:33 BoogieIcfgContainer [2020-10-20 05:48:33,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:48:33,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:48:33,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:48:33,507 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:48:33,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:48:33" (3/4) ... [2020-10-20 05:48:33,510 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 05:48:33,591 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 05:48:33,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:48:33,603 INFO L168 Benchmark]: Toolchain (without parser) took 1143.79 ms. Allocated memory was 34.1 MB in the beginning and 47.7 MB in the end (delta: 13.6 MB). Free memory was 7.5 MB in the beginning and 28.9 MB in the end (delta: -21.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:33,604 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 34.1 MB. Free memory is still 13.0 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 05:48:33,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.12 ms. Allocated memory was 34.1 MB in the beginning and 45.6 MB in the end (delta: 11.5 MB). Free memory was 6.7 MB in the beginning and 29.0 MB in the end (delta: -22.3 MB). Peak memory consumption was 7.2 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:33,607 INFO L168 Benchmark]: Boogie Preprocessor took 34.76 ms. Allocated memory is still 45.6 MB. Free memory was 29.0 MB in the beginning and 27.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:33,609 INFO L168 Benchmark]: RCFGBuilder took 349.84 ms. Allocated memory was 45.6 MB in the beginning and 46.7 MB in the end (delta: 1.0 MB). Free memory was 27.2 MB in the beginning and 25.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 15.6 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:33,613 INFO L168 Benchmark]: TraceAbstraction took 308.16 ms. Allocated memory is still 46.7 MB. Free memory was 24.9 MB in the beginning and 11.2 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:33,614 INFO L168 Benchmark]: Witness Printer took 86.76 ms. Allocated memory was 46.7 MB in the beginning and 47.7 MB in the end (delta: 1.0 MB). Free memory was 11.2 MB in the beginning and 28.9 MB in the end (delta: -17.7 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:33,628 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 34.1 MB. Free memory is still 13.0 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 355.12 ms. Allocated memory was 34.1 MB in the beginning and 45.6 MB in the end (delta: 11.5 MB). Free memory was 6.7 MB in the beginning and 29.0 MB in the end (delta: -22.3 MB). Peak memory consumption was 7.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 34.76 ms. Allocated memory is still 45.6 MB. Free memory was 29.0 MB in the beginning and 27.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 349.84 ms. Allocated memory was 45.6 MB in the beginning and 46.7 MB in the end (delta: 1.0 MB). Free memory was 27.2 MB in the beginning and 25.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 15.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 308.16 ms. Allocated memory is still 46.7 MB. Free memory was 24.9 MB in the beginning and 11.2 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 14.3 GB. * Witness Printer took 86.76 ms. Allocated memory was 46.7 MB in the beginning and 47.7 MB in the end (delta: 1.0 MB). Free memory was 11.2 MB in the beginning and 28.9 MB in the end (delta: -17.7 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L19] int* numbers; [L20] int array_size = __VERIFIER_nondet_int(); [L21] CALL bubbleSort(numbers, array_size) VAL [\old(array_size)=2, numbers={6:4}] [L5] int i, j, temp; [L7] i = (array_size - 1) VAL [\old(array_size)=2, array_size=2, i=1, numbers={6:4}, numbers={6:4}] [L7] COND TRUE i >= 0 [L8] j = 1 VAL [\old(array_size)=2, array_size=2, i=1, j=1, numbers={6:4}, numbers={6:4}] [L8] COND TRUE j <= i VAL [\old(array_size)=2, array_size=2, i=1, j=1, numbers={6:4}, numbers={6:4}] [L9] numbers[j-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 41 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 11 NumberOfCodeBlocks, 11 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...