./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8 --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 767ec81abc1d53fd457a174594199b33ee40a3be ....................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 07:54:22,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:54:22,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:54:22,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:54:22,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:54:22,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:54:22,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:54:22,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:54:22,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:54:22,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:54:22,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:54:22,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:54:22,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:54:22,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:54:22,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:54:22,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:54:22,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:54:22,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:54:22,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:54:22,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:54:22,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:54:22,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:54:22,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:54:22,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:54:22,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:54:22,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:54:22,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:54:22,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:54:22,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:54:22,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:54:22,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:54:22,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:54:22,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:54:22,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:54:22,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:54:22,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:54:22,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:54:22,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:54:22,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:54:22,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:54:22,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:54:22,377 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-13 07:54:22,415 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:54:22,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:54:22,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:54:22,416 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:54:22,416 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:54:22,417 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:54:22,417 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:54:22,417 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:54:22,417 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:54:22,417 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:54:22,418 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:54:22,418 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:54:22,418 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:54:22,418 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:54:22,419 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:54:22,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 07:54:22,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 07:54:22,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:54:22,426 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:54:22,426 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 07:54:22,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:54:22,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:54:22,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:54:22,427 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 07:54:22,428 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 07:54:22,428 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 07:54:22,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:54:22,430 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:54:22,431 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:54:22,431 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:54:22,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:54:22,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:54:22,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:54:22,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:54:22,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:54:22,432 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:54:22,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:54:22,434 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:54:22,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:54:22,434 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_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 767ec81abc1d53fd457a174594199b33ee40a3be [2021-10-13 07:54:22,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:54:22,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:54:22,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:54:22,818 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:54:22,819 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:54:22,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/memsafety-ext3/scopes5.c [2021-10-13 07:54:22,915 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/data/f528cdbd6/28c6b5a9c16e4065a7e1255ea934bace/FLAG2eec648f2 [2021-10-13 07:54:23,349 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:54:23,350 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/sv-benchmarks/c/memsafety-ext3/scopes5.c [2021-10-13 07:54:23,356 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/data/f528cdbd6/28c6b5a9c16e4065a7e1255ea934bace/FLAG2eec648f2 [2021-10-13 07:54:23,749 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/data/f528cdbd6/28c6b5a9c16e4065a7e1255ea934bace [2021-10-13 07:54:23,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:54:23,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:54:23,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:54:23,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:54:23,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:54:23,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:54:23" (1/1) ... [2021-10-13 07:54:23,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fce4ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:23, skipping insertion in model container [2021-10-13 07:54:23,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:54:23" (1/1) ... [2021-10-13 07:54:23,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:54:23,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:54:24,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:54:24,066 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:54:24,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:54:24,101 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:54:24,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:24 WrapperNode [2021-10-13 07:54:24,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:54:24,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:54:24,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:54:24,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:54:24,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:24" (1/1) ... [2021-10-13 07:54:24,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:24" (1/1) ... [2021-10-13 07:54:24,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:54:24,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:54:24,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:54:24,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:54:24,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:24" (1/1) ... [2021-10-13 07:54:24,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:24" (1/1) ... [2021-10-13 07:54:24,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:24" (1/1) ... [2021-10-13 07:54:24,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:24" (1/1) ... [2021-10-13 07:54:24,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:24" (1/1) ... [2021-10-13 07:54:24,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:24" (1/1) ... [2021-10-13 07:54:24,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:24" (1/1) ... [2021-10-13 07:54:24,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:54:24,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:54:24,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:54:24,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:54:24,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:24" (1/1) ... [2021-10-13 07:54:24,192 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:54:24,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:54:24,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:54:24,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:54:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:54:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:54:24,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:54:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:54:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:54:24,546 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:54:24,547 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 07:54:24,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:54:24 BoogieIcfgContainer [2021-10-13 07:54:24,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:54:24,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:54:24,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:54:24,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:54:24,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:54:23" (1/3) ... [2021-10-13 07:54:24,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0775d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:54:24, skipping insertion in model container [2021-10-13 07:54:24,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:24" (2/3) ... [2021-10-13 07:54:24,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0775d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:54:24, skipping insertion in model container [2021-10-13 07:54:24,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:54:24" (3/3) ... [2021-10-13 07:54:24,572 INFO L111 eAbstractionObserver]: Analyzing ICFG scopes5.c [2021-10-13 07:54:24,578 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:54:24,578 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 07:54:24,625 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:54:24,632 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, mConcurrency=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 [2021-10-13 07:54:24,632 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 07:54:24,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 3 states have (on average 2.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2021-10-13 07:54:24,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 07:54:24,666 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:54:24,667 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-13 07:54:24,667 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-13 07:54:24,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:54:24,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1560, now seen corresponding path program 1 times [2021-10-13 07:54:24,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:54:24,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351769722] [2021-10-13 07:54:24,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:54:24,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:54:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:54:24,834 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:54:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:54:24,886 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:54:24,889 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:54:24,891 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-13 07:54:24,895 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-13 07:54:24,896 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:54:24,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:54:24,905 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:54:24,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:54:24 BoogieIcfgContainer [2021-10-13 07:54:24,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:54:24,925 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:54:24,926 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:54:24,926 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:54:24,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:54:24" (3/4) ... [2021-10-13 07:54:24,930 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 07:54:24,974 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:54:24,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:54:24,984 INFO L168 Benchmark]: Toolchain (without parser) took 1219.80 ms. Allocated memory is still 134.2 MB. Free memory was 102.4 MB in the beginning and 86.2 MB in the end (delta: 16.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:54:24,985 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory was 45.5 MB in the beginning and 45.4 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:54:24,987 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.53 ms. Allocated memory is still 134.2 MB. Free memory was 102.1 MB in the beginning and 111.4 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:54:24,987 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.15 ms. Allocated memory is still 134.2 MB. Free memory was 111.4 MB in the beginning and 110.4 MB in the end (delta: 965.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:54:24,988 INFO L168 Benchmark]: Boogie Preprocessor took 32.99 ms. Allocated memory is still 134.2 MB. Free memory was 109.9 MB in the beginning and 109.3 MB in the end (delta: 673.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:54:24,989 INFO L168 Benchmark]: RCFGBuilder took 386.00 ms. Allocated memory is still 134.2 MB. Free memory was 109.3 MB in the beginning and 100.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:54:24,993 INFO L168 Benchmark]: TraceAbstraction took 355.34 ms. Allocated memory is still 134.2 MB. Free memory was 99.5 MB in the beginning and 87.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:54:24,994 INFO L168 Benchmark]: Witness Printer took 50.15 ms. Allocated memory is still 134.2 MB. Free memory was 87.4 MB in the beginning and 86.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:54:25,002 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 86.0 MB. Free memory was 45.5 MB in the beginning and 45.4 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 342.53 ms. Allocated memory is still 134.2 MB. Free memory was 102.1 MB in the beginning and 111.4 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.15 ms. Allocated memory is still 134.2 MB. Free memory was 111.4 MB in the beginning and 110.4 MB in the end (delta: 965.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.99 ms. Allocated memory is still 134.2 MB. Free memory was 109.9 MB in the beginning and 109.3 MB in the end (delta: 673.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 386.00 ms. Allocated memory is still 134.2 MB. Free memory was 109.3 MB in the beginning and 100.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 355.34 ms. Allocated memory is still 134.2 MB. Free memory was 99.5 MB in the beginning and 87.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 50.15 ms. Allocated memory is still 134.2 MB. Free memory was 87.4 MB in the beginning and 86.2 MB in the end (delta: 1.2 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 7]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L2] int* p; [L4] int a[10]; [L5] p = a [L7] p[0] = 1 - UnprovableResult [Line: 7]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1]: 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, 7 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 279.1ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 24.5ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.5ms SsaConstructionTime, 37.6ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 07:54:25,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38bf555a-b41e-4d90-9344-ce79c54617ae/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...