./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i --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_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/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_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/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_ae394cfc-97ab-4c23-b5ed-120f73ac201f/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 d94197bb45011c55db64c4b2cad037cf69a2430f75ef8668b076bdef6ca69182 ................................................................................................................................................................................................................................................................................................................................................. 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 05:38:18,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:38:18,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:38:18,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:38:18,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:38:18,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:38:18,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:38:18,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:38:18,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:38:18,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:38:18,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:38:18,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:38:18,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:38:18,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:38:18,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:38:18,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:38:18,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:38:18,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:38:18,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:38:18,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:38:18,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:38:18,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:38:18,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:38:18,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:38:18,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:38:18,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:38:18,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:38:18,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:38:18,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:38:18,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:38:18,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:38:18,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:38:18,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:38:18,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:38:18,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:38:18,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:38:18,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:38:18,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:38:18,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:38:18,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:38:18,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:38:18,279 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-29 05:38:18,350 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:38:18,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:38:18,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:38:18,352 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:38:18,353 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:38:18,353 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:38:18,353 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:38:18,354 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:38:18,354 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:38:18,354 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:38:18,356 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:38:18,356 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:38:18,356 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:38:18,357 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:38:18,357 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:38:18,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 05:38:18,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 05:38:18,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:38:18,359 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:38:18,360 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 05:38:18,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:38:18,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:38:18,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:38:18,361 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 05:38:18,361 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 05:38:18,362 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 05:38:18,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:38:18,364 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:38:18,364 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:38:18,365 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:38:18,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:38:18,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:38:18,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:38:18,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:38:18,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:38:18,367 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:38:18,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:38:18,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:38:18,368 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:38:18,368 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_ae394cfc-97ab-4c23-b5ed-120f73ac201f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d94197bb45011c55db64c4b2cad037cf69a2430f75ef8668b076bdef6ca69182 [2021-10-29 05:38:18,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:38:18,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:38:18,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:38:18,820 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:38:18,821 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:38:18,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i [2021-10-29 05:38:18,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/data/a5f329736/fa61e540dd0e417d9ae938716285c93e/FLAG45bc54927 [2021-10-29 05:38:19,489 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:38:19,490 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/sv-benchmarks/c/array-memsafety/mult_array_unsafe.i [2021-10-29 05:38:19,504 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/data/a5f329736/fa61e540dd0e417d9ae938716285c93e/FLAG45bc54927 [2021-10-29 05:38:19,812 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/data/a5f329736/fa61e540dd0e417d9ae938716285c93e [2021-10-29 05:38:19,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:38:19,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:38:19,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:38:19,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:38:19,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:38:19,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:38:19" (1/1) ... [2021-10-29 05:38:19,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bbb8b79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:38:19, skipping insertion in model container [2021-10-29 05:38:19,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:38:19" (1/1) ... [2021-10-29 05:38:19,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:38:19,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:38:20,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:38:20,309 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:38:20,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:38:20,435 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:38:20,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:38:20 WrapperNode [2021-10-29 05:38:20,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:38:20,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:38:20,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:38:20,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:38:20,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:38:20" (1/1) ... [2021-10-29 05:38:20,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:38:20" (1/1) ... [2021-10-29 05:38:20,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:38:20,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:38:20,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:38:20,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:38:20,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:38:20" (1/1) ... [2021-10-29 05:38:20,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:38:20" (1/1) ... [2021-10-29 05:38:20,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:38:20" (1/1) ... [2021-10-29 05:38:20,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:38:20" (1/1) ... [2021-10-29 05:38:20,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:38:20" (1/1) ... [2021-10-29 05:38:20,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:38:20" (1/1) ... [2021-10-29 05:38:20,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:38:20" (1/1) ... [2021-10-29 05:38:20,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:38:20,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:38:20,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:38:20,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:38:20,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:38:20" (1/1) ... [2021-10-29 05:38:20,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:38:20,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:38:20,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:38:20,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:38:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 05:38:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:38:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:38:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:38:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:38:20,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:38:21,143 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:38:21,143 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-29 05:38:21,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:38:21 BoogieIcfgContainer [2021-10-29 05:38:21,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:38:21,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:38:21,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:38:21,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:38:21,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:38:19" (1/3) ... [2021-10-29 05:38:21,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4e37b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:38:21, skipping insertion in model container [2021-10-29 05:38:21,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:38:20" (2/3) ... [2021-10-29 05:38:21,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4e37b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:38:21, skipping insertion in model container [2021-10-29 05:38:21,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:38:21" (3/3) ... [2021-10-29 05:38:21,159 INFO L111 eAbstractionObserver]: Analyzing ICFG mult_array_unsafe.i [2021-10-29 05:38:21,165 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:38:21,165 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-29 05:38:21,220 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:38:21,228 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 05:38:21,228 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-29 05:38:21,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 8 states have (on average 2.25) internal successors, (18), 15 states have internal predecessors, (18), 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 05:38:21,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 05:38:21,253 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:38:21,254 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-29 05:38:21,255 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 3 more)] === [2021-10-29 05:38:21,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:38:21,261 INFO L85 PathProgramCache]: Analyzing trace with hash 107322, now seen corresponding path program 1 times [2021-10-29 05:38:21,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:38:21,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873510258] [2021-10-29 05:38:21,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:38:21,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:38:21,376 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:38:21,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885338237] [2021-10-29 05:38:21,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:38:21,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:38:21,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:38:21,381 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:38:21,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 05:38:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:38:21,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:38:21,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:38:21,599 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 05:38:21,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:38:21,656 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 05:38:21,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:38:21,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873510258] [2021-10-29 05:38:21,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:38:21,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885338237] [2021-10-29 05:38:21,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885338237] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:38:21,659 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:38:21,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 05:38:21,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202504312] [2021-10-29 05:38:21,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:38:21,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:38:21,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:38:21,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:38:21,700 INFO L87 Difference]: Start difference. First operand has 16 states, 8 states have (on average 2.25) internal successors, (18), 15 states have internal predecessors, (18), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 05:38:21,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:38:21,732 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-10-29 05:38:21,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:38:21,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 05:38:21,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:38:21,741 INFO L225 Difference]: With dead ends: 16 [2021-10-29 05:38:21,742 INFO L226 Difference]: Without dead ends: 15 [2021-10-29 05:38:21,743 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:38:21,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-29 05:38:21,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-29 05:38:21,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 8 states have (on average 2.0) internal successors, (16), 14 states have internal predecessors, (16), 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 05:38:21,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-29 05:38:21,769 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 3 [2021-10-29 05:38:21,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:38:21,769 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-29 05:38:21,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 05:38:21,770 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-10-29 05:38:21,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 05:38:21,771 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:38:21,771 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 05:38:21,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:38:21,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-29 05:38:21,981 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 3 more)] === [2021-10-29 05:38:21,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:38:21,982 INFO L85 PathProgramCache]: Analyzing trace with hash 3327913, now seen corresponding path program 1 times [2021-10-29 05:38:21,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:38:21,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187229368] [2021-10-29 05:38:21,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:38:21,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:38:21,995 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:38:21,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1734824902] [2021-10-29 05:38:21,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:38:21,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:38:21,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:38:21,997 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:38:21,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-29 05:38:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:38:22,080 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:38:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:38:22,138 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:38:22,139 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:38:22,140 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-29 05:38:22,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-29 05:38:22,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-29 05:38:22,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-29 05:38:22,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-29 05:38:22,144 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-29 05:38:22,144 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:38:22,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:38:22,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:38:22,359 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 05:38:22,362 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:38:22,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:38:22 BoogieIcfgContainer [2021-10-29 05:38:22,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:38:22,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:38:22,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:38:22,378 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:38:22,379 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:38:21" (3/4) ... [2021-10-29 05:38:22,381 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 05:38:22,415 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae394cfc-97ab-4c23-b5ed-120f73ac201f/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:38:22,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:38:22,417 INFO L168 Benchmark]: Toolchain (without parser) took 2598.71 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 86.0 MB in the beginning and 96.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:38:22,418 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 109.1 MB. Free memory is still 81.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:38:22,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.69 ms. Allocated memory is still 109.1 MB. Free memory was 86.0 MB in the beginning and 76.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:38:22,419 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.77 ms. Allocated memory is still 109.1 MB. Free memory was 76.3 MB in the beginning and 74.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:38:22,420 INFO L168 Benchmark]: Boogie Preprocessor took 27.26 ms. Allocated memory is still 109.1 MB. Free memory was 74.2 MB in the beginning and 73.3 MB in the end (delta: 865.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:38:22,421 INFO L168 Benchmark]: RCFGBuilder took 618.33 ms. Allocated memory is still 109.1 MB. Free memory was 73.0 MB in the beginning and 57.3 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:38:22,421 INFO L168 Benchmark]: TraceAbstraction took 1226.40 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 56.9 MB in the beginning and 98.2 MB in the end (delta: -41.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:38:22,422 INFO L168 Benchmark]: Witness Printer took 37.74 ms. Allocated memory is still 136.3 MB. Free memory was 98.2 MB in the beginning and 96.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:38:22,426 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 109.1 MB. Free memory is still 81.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 614.69 ms. Allocated memory is still 109.1 MB. Free memory was 86.0 MB in the beginning and 76.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.77 ms. Allocated memory is still 109.1 MB. Free memory was 76.3 MB in the beginning and 74.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.26 ms. Allocated memory is still 109.1 MB. Free memory was 74.2 MB in the beginning and 73.3 MB in the end (delta: 865.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 618.33 ms. Allocated memory is still 109.1 MB. Free memory was 73.0 MB in the beginning and 57.3 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1226.40 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 56.9 MB in the beginning and 98.2 MB in the end (delta: -41.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 37.74 ms. Allocated memory is still 136.3 MB. Free memory was 98.2 MB in the beginning and 96.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 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: 522]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L513] int i, j; [L514] int length = __VERIFIER_nondet_int(); [L515] COND TRUE length < 1 || length >= 2147483647 / sizeof(int) [L515] length = 1 [L516] int fac = __VERIFIER_nondet_int(); [L517] COND TRUE fac < 1 || fac >= 2147483647 / (sizeof(int) * length) [L517] fac = 1 [L518] int *arr = __builtin_alloca (length); [L519] int *arr2 = __builtin_alloca (fac*length); [L520] COND FALSE !(!arr || !arr2) [L521] i=0 [L521] COND TRUE i