./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/bubblesort_unsafe.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5eaae4e0e100231882d4e227389aa6df1e49e6fa56c0a085febf2800aa4ad8fe ............................................................................................................................................................................................................................................................................................................................................ 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 0.2.1-dev-b2eff8b [2021-10-29 04:44:22,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:44:22,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:44:22,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:44:22,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:44:22,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:44:22,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:44:22,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:44:22,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:44:22,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:44:22,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:44:22,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:44:22,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:44:22,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:44:22,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:44:22,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:44:22,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:44:22,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:44:22,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:44:22,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:44:22,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:44:22,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:44:22,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:44:22,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:44:22,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:44:22,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:44:22,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:44:22,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:44:22,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:44:22,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:44:22,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:44:22,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:44:22,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:44:22,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:44:22,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:44:22,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:44:22,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:44:22,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:44:22,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:44:22,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:44:22,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:44:22,324 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-29 04:44:22,360 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:44:22,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:44:22,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:44:22,362 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:44:22,362 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:44:22,362 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:44:22,363 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:44:22,363 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:44:22,363 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:44:22,363 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:44:22,364 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:44:22,364 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:44:22,364 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:44:22,364 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:44:22,365 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:44:22,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:44:22,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:44:22,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:44:22,366 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:44:22,367 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:44:22,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:44:22,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:44:22,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:44:22,367 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:44:22,368 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:44:22,368 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:44:22,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:44:22,369 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:44:22,369 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:44:22,369 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:44:22,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:44:22,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:44:22,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:44:22,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:44:22,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:44:22,371 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:44:22,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:44:22,371 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:44:22,371 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:44:22,372 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5eaae4e0e100231882d4e227389aa6df1e49e6fa56c0a085febf2800aa4ad8fe [2021-10-29 04:44:22,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:44:22,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:44:22,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:44:22,643 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:44:22,644 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:44:22,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/array-memsafety/bubblesort_unsafe.c [2021-10-29 04:44:22,720 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/data/121927e34/a7be7ad58fe748cc899cfebd7453abfd/FLAG2cd16c920 [2021-10-29 04:44:23,141 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:44:23,141 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/sv-benchmarks/c/array-memsafety/bubblesort_unsafe.c [2021-10-29 04:44:23,147 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/data/121927e34/a7be7ad58fe748cc899cfebd7453abfd/FLAG2cd16c920 [2021-10-29 04:44:23,535 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/data/121927e34/a7be7ad58fe748cc899cfebd7453abfd [2021-10-29 04:44:23,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:44:23,539 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:44:23,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:44:23,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:44:23,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:44:23,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:44:23" (1/1) ... [2021-10-29 04:44:23,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38906f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:23, skipping insertion in model container [2021-10-29 04:44:23,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:44:23" (1/1) ... [2021-10-29 04:44:23,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:44:23,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:44:23,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:44:23,791 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:44:23,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:44:23,835 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:44:23,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:23 WrapperNode [2021-10-29 04:44:23,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:44:23,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:44:23,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:44:23,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:44:23,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:23" (1/1) ... [2021-10-29 04:44:23,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:23" (1/1) ... [2021-10-29 04:44:23,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:44:23,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:44:23,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:44:23,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:44:23,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:23" (1/1) ... [2021-10-29 04:44:23,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:23" (1/1) ... [2021-10-29 04:44:23,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:23" (1/1) ... [2021-10-29 04:44:23,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:23" (1/1) ... [2021-10-29 04:44:23,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:23" (1/1) ... [2021-10-29 04:44:23,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:23" (1/1) ... [2021-10-29 04:44:23,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:23" (1/1) ... [2021-10-29 04:44:23,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:44:23,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:44:23,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:44:23,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:44:23,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:23" (1/1) ... [2021-10-29 04:44:23,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:44:23,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:44:23,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:44:23,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:44:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:44:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:44:24,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:44:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:44:24,385 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:44:24,385 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-29 04:44:24,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:44:24 BoogieIcfgContainer [2021-10-29 04:44:24,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:44:24,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:44:24,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:44:24,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:44:24,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:44:23" (1/3) ... [2021-10-29 04:44:24,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5c6448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:44:24, skipping insertion in model container [2021-10-29 04:44:24,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:23" (2/3) ... [2021-10-29 04:44:24,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5c6448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:44:24, skipping insertion in model container [2021-10-29 04:44:24,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:44:24" (3/3) ... [2021-10-29 04:44:24,397 INFO L111 eAbstractionObserver]: Analyzing ICFG bubblesort_unsafe.c [2021-10-29 04:44:24,402 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:44:24,402 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-10-29 04:44:24,448 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:44:24,464 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 04:44:24,465 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-10-29 04:44:24,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:24,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 04:44:24,485 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:24,486 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-29 04:44:24,487 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 9 more)] === [2021-10-29 04:44:24,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:24,492 INFO L85 PathProgramCache]: Analyzing trace with hash 88560, now seen corresponding path program 1 times [2021-10-29 04:44:24,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:44:24,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79743500] [2021-10-29 04:44:24,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:24,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:44:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:24,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:24,632 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:44:24,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79743500] [2021-10-29 04:44:24,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79743500] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:24,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:24,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 04:44:24,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026113967] [2021-10-29 04:44:24,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:44:24,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:44:24,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:44:24,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:44:24,657 INFO L87 Difference]: Start difference. First operand has 26 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:24,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:24,696 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2021-10-29 04:44:24,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:44:24,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-29 04:44:24,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:24,717 INFO L225 Difference]: With dead ends: 25 [2021-10-29 04:44:24,718 INFO L226 Difference]: Without dead ends: 23 [2021-10-29 04:44:24,719 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:44:24,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-29 04:44:24,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-29 04:44:24,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 11 states have (on average 2.272727272727273) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:24,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2021-10-29 04:44:24,757 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 3 [2021-10-29 04:44:24,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:24,758 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2021-10-29 04:44:24,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:24,759 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2021-10-29 04:44:24,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:44:24,759 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:24,760 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 04:44:24,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:44:24,761 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 9 more)] === [2021-10-29 04:44:24,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:24,765 INFO L85 PathProgramCache]: Analyzing trace with hash 2691378, now seen corresponding path program 1 times [2021-10-29 04:44:24,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:44:24,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856339889] [2021-10-29 04:44:24,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:24,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:44:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:44:24,798 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:44:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:44:24,824 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 04:44:24,824 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:44:24,826 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-29 04:44:24,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-29 04:44:24,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-29 04:44:24,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-29 04:44:24,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-29 04:44:24,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-29 04:44:24,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-29 04:44:24,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-29 04:44:24,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-29 04:44:24,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-29 04:44:24,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-29 04:44:24,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-29 04:44:24,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:44:24,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 04:44:24,834 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 04:44:24,838 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:44:24,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:44:24 BoogieIcfgContainer [2021-10-29 04:44:24,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:44:24,853 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:44:24,853 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:44:24,854 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:44:24,854 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:44:24" (3/4) ... [2021-10-29 04:44:24,856 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:44:24,904 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:44:24,905 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:44:24,907 INFO L168 Benchmark]: Toolchain (without parser) took 1366.66 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 66.7 MB in the beginning and 111.8 MB in the end (delta: -45.1 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:24,907 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 100.7 MB. Free memory was 69.9 MB in the beginning and 69.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:44:24,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.73 ms. Allocated memory is still 100.7 MB. Free memory was 66.4 MB in the beginning and 78.2 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:24,909 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.04 ms. Allocated memory is still 100.7 MB. Free memory was 78.2 MB in the beginning and 76.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:24,909 INFO L168 Benchmark]: Boogie Preprocessor took 45.21 ms. Allocated memory is still 100.7 MB. Free memory was 76.6 MB in the beginning and 75.6 MB in the end (delta: 985.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:44:24,910 INFO L168 Benchmark]: RCFGBuilder took 456.29 ms. Allocated memory is still 100.7 MB. Free memory was 75.1 MB in the beginning and 62.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:24,911 INFO L168 Benchmark]: TraceAbstraction took 462.87 ms. Allocated memory is still 100.7 MB. Free memory was 62.5 MB in the beginning and 40.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:24,911 INFO L168 Benchmark]: Witness Printer took 51.54 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 40.5 MB in the beginning and 111.8 MB in the end (delta: -71.3 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:24,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 100.7 MB. Free memory was 69.9 MB in the beginning and 69.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 295.73 ms. Allocated memory is still 100.7 MB. Free memory was 66.4 MB in the beginning and 78.2 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.04 ms. Allocated memory is still 100.7 MB. Free memory was 78.2 MB in the beginning and 76.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.21 ms. Allocated memory is still 100.7 MB. Free memory was 76.6 MB in the beginning and 75.6 MB in the end (delta: 985.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 456.29 ms. Allocated memory is still 100.7 MB. Free memory was 75.1 MB in the beginning and 62.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 462.87 ms. Allocated memory is still 100.7 MB. Free memory was 62.5 MB in the beginning and 40.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 51.54 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 40.5 MB in the beginning and 111.8 MB in the end (delta: -71.3 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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(); [L5] int i, j, temp; [L7] i = (array_size - 1) [L7] COND TRUE i >= 0 [L8] j = 1 [L8] COND TRUE j <= i [L9] numbers[j-1] - UnprovableResult [Line: 9]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 10]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 10]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 11]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 11]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 11]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 11]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 25 SDslu, 0 SDs, 0 SdLazy, 13 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:44:24,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e56f96-3f09-49fa-a952-ee1e8aac0491/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...