./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/bubblesort_unsafe.c -s /tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 0.2.0-a4ecdab [2020-11-28 03:20:55,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:20:55,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:20:55,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:20:55,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:20:55,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:20:55,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:20:55,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:20:55,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:20:55,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:20:55,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:20:55,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:20:55,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:20:55,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:20:55,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:20:55,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:20:55,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:20:55,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:20:55,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:20:55,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:20:55,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:20:55,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:20:55,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:20:55,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:20:55,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:20:55,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:20:55,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:20:55,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:20:55,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:20:55,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:20:55,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:20:55,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:20:55,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:20:55,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:20:55,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:20:55,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:20:55,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:20:55,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:20:55,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:20:55,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:20:55,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:20:55,147 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 03:20:55,194 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:20:55,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:20:55,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:20:55,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:20:55,196 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:20:55,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:20:55,196 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:20:55,196 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:20:55,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:20:55,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:20:55,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:20:55,197 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:20:55,197 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:20:55,200 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:20:55,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:20:55,201 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:20:55,201 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:20:55,201 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:20:55,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:20:55,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:20:55,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:20:55,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:20:55,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:20:55,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:20:55,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:20:55,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:20:55,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:20:55,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:20:55,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e06dd3d11d320ef89a2d2c8c527408fda05cf2ff [2020-11-28 03:20:55,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:20:55,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:20:55,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:20:55,491 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:20:55,493 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:20:55,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/bubblesort_unsafe.c [2020-11-28 03:20:55,564 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer/data/b362c0a04/09dcc3c0acf74663b3b862a3bff9df63/FLAGf26898872 [2020-11-28 03:20:56,123 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:20:56,124 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/sv-benchmarks/c/array-memsafety/bubblesort_unsafe.c [2020-11-28 03:20:56,130 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer/data/b362c0a04/09dcc3c0acf74663b3b862a3bff9df63/FLAGf26898872 [2020-11-28 03:20:56,502 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer/data/b362c0a04/09dcc3c0acf74663b3b862a3bff9df63 [2020-11-28 03:20:56,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:20:56,506 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:20:56,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:56,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:20:56,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:20:56,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:56" (1/1) ... [2020-11-28 03:20:56,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62fa8036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:56, skipping insertion in model container [2020-11-28 03:20:56,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:56" (1/1) ... [2020-11-28 03:20:56,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:20:56,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:20:56,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:56,726 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:20:56,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:56,775 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:20:56,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:56 WrapperNode [2020-11-28 03:20:56,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:56,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:20:56,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:20:56,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:20:56,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:56" (1/1) ... [2020-11-28 03:20:56,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:56" (1/1) ... [2020-11-28 03:20:56,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:56" (1/1) ... [2020-11-28 03:20:56,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:56" (1/1) ... [2020-11-28 03:20:56,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:56" (1/1) ... [2020-11-28 03:20:56,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:56" (1/1) ... [2020-11-28 03:20:56,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:56" (1/1) ... [2020-11-28 03:20:56,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:20:56,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:20:56,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:20:56,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:20:56,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:20:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:20:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:20:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure bubbleSort [2020-11-28 03:20:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:20:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:20:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure bubbleSort [2020-11-28 03:20:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:20:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:20:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:20:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:20:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:20:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:20:57,208 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:20:57,208 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-28 03:20:57,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:57 BoogieIcfgContainer [2020-11-28 03:20:57,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:20:57,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:20:57,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:20:57,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:20:57,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:20:56" (1/3) ... [2020-11-28 03:20:57,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6f15c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:57, skipping insertion in model container [2020-11-28 03:20:57,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:56" (2/3) ... [2020-11-28 03:20:57,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6f15c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:57, skipping insertion in model container [2020-11-28 03:20:57,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:57" (3/3) ... [2020-11-28 03:20:57,247 INFO L111 eAbstractionObserver]: Analyzing ICFG bubblesort_unsafe.c [2020-11-28 03:20:57,259 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:20:57,263 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-11-28 03:20:57,278 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-11-28 03:20:57,303 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:20:57,303 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:20:57,303 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:20:57,304 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:20:57,304 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:20:57,304 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:20:57,304 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:20:57,305 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:20:57,321 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-11-28 03:20:57,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:20:57,333 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:57,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:57,334 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]=== [2020-11-28 03:20:57,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:57,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1760941198, now seen corresponding path program 1 times [2020-11-28 03:20:57,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:57,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786702513] [2020-11-28 03:20:57,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:57,461 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:57,501 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:57,541 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:57,542 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:20:57,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:20:57,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:20:57 BoogieIcfgContainer [2020-11-28 03:20:57,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:20:57,576 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:20:57,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:20:57,577 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:20:57,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:57" (3/4) ... [2020-11-28 03:20:57,580 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:20:57,633 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_13529919-75fc-409a-ac17-3dd14d929824/bin/uautomizer/witness.graphml [2020-11-28 03:20:57,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:20:57,635 INFO L168 Benchmark]: Toolchain (without parser) took 1128.23 ms. Allocated memory is still 121.6 MB. Free memory was 91.1 MB in the beginning and 68.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:57,636 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 79.7 MB. Free memory is still 39.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:57,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.93 ms. Allocated memory is still 121.6 MB. Free memory was 90.9 MB in the beginning and 98.7 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:57,638 INFO L168 Benchmark]: Boogie Preprocessor took 33.05 ms. Allocated memory is still 121.6 MB. Free memory was 98.7 MB in the beginning and 97.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:57,639 INFO L168 Benchmark]: RCFGBuilder took 398.06 ms. Allocated memory is still 121.6 MB. Free memory was 97.2 MB in the beginning and 82.4 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:57,640 INFO L168 Benchmark]: TraceAbstraction took 361.56 ms. Allocated memory is still 121.6 MB. Free memory was 82.0 MB in the beginning and 69.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:57,641 INFO L168 Benchmark]: Witness Printer took 56.65 ms. Allocated memory is still 121.6 MB. Free memory was 69.9 MB in the beginning and 68.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:57,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 79.7 MB. Free memory is still 39.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.93 ms. Allocated memory is still 121.6 MB. Free memory was 90.9 MB in the beginning and 98.7 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.05 ms. Allocated memory is still 121.6 MB. Free memory was 98.7 MB in the beginning and 97.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 398.06 ms. Allocated memory is still 121.6 MB. Free memory was 97.2 MB in the beginning and 82.4 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 361.56 ms. Allocated memory is still 121.6 MB. Free memory was 82.0 MB in the beginning and 69.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 56.65 ms. Allocated memory is still 121.6 MB. Free memory was 69.9 MB in the beginning and 68.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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...