./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl --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 4971cb0b49f8cd6920aed64e922b55ffc2bc14d188aa433fccbb1000a12773a3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:59:17,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:59:17,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:59:17,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:59:17,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:59:17,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:59:17,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:59:17,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:59:17,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:59:17,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:59:17,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:59:17,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:59:17,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:59:17,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:59:17,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:59:17,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:59:17,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:59:17,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:59:17,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:59:17,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:59:17,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:59:17,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:59:17,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:59:17,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:59:17,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:59:17,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:59:17,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:59:17,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:59:17,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:59:17,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:59:17,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:59:17,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:59:17,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:59:17,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:59:17,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:59:17,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:59:17,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:59:17,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:59:17,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:59:17,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:59:17,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:59:17,319 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-23 16:59:17,368 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:59:17,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:59:17,369 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:59:17,369 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:59:17,371 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:59:17,371 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:59:17,372 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:59:17,372 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:59:17,372 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:59:17,373 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:59:17,374 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:59:17,374 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:59:17,374 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:59:17,374 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:59:17,374 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:59:17,375 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:59:17,375 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:59:17,375 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:59:17,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 16:59:17,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 16:59:17,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:59:17,376 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:59:17,376 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 16:59:17,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:59:17,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:59:17,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:59:17,377 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 16:59:17,377 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 16:59:17,377 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 16:59:17,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:59:17,378 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:59:17,378 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:59:17,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:59:17,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:59:17,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:59:17,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:59:17,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:59:17,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:59:17,380 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:59:17,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:59:17,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:59:17,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:59:17,381 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_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4971cb0b49f8cd6920aed64e922b55ffc2bc14d188aa433fccbb1000a12773a3 [2021-11-23 16:59:17,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:59:17,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:59:17,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:59:17,751 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:59:17,751 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:59:17,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/memsafety-ext3/scopes2.c [2021-11-23 16:59:17,827 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/data/3cca114ae/ec5325d9bbe74f10b02dc7b7363523be/FLAG79195c3ba [2021-11-23 16:59:18,360 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:59:18,361 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/sv-benchmarks/c/memsafety-ext3/scopes2.c [2021-11-23 16:59:18,374 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/data/3cca114ae/ec5325d9bbe74f10b02dc7b7363523be/FLAG79195c3ba [2021-11-23 16:59:18,722 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/data/3cca114ae/ec5325d9bbe74f10b02dc7b7363523be [2021-11-23 16:59:18,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:59:18,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:59:18,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:59:18,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:59:18,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:59:18,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:59:18" (1/1) ... [2021-11-23 16:59:18,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ba28b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:18, skipping insertion in model container [2021-11-23 16:59:18,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:59:18" (1/1) ... [2021-11-23 16:59:18,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:59:18,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:59:19,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:59:19,037 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:59:19,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:59:19,071 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:59:19,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:19 WrapperNode [2021-11-23 16:59:19,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:59:19,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:59:19,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:59:19,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:59:19,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:19" (1/1) ... [2021-11-23 16:59:19,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:19" (1/1) ... [2021-11-23 16:59:19,115 INFO L137 Inliner]: procedures = 11, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2021-11-23 16:59:19,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:59:19,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:59:19,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:59:19,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:59:19,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:19" (1/1) ... [2021-11-23 16:59:19,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:19" (1/1) ... [2021-11-23 16:59:19,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:19" (1/1) ... [2021-11-23 16:59:19,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:19" (1/1) ... [2021-11-23 16:59:19,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:19" (1/1) ... [2021-11-23 16:59:19,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:19" (1/1) ... [2021-11-23 16:59:19,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:19" (1/1) ... [2021-11-23 16:59:19,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:59:19,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:59:19,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:59:19,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:59:19,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:19" (1/1) ... [2021-11-23 16:59:19,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:59:19,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:59:19,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:59:19,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:59:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:59:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:59:19,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:59:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 16:59:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:59:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 16:59:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 16:59:19,343 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:59:19,346 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:59:19,536 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:59:19,571 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 16:59:19,579 INFO L158 Benchmark]: Toolchain (without parser) took 847.35ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 52.9MB in the beginning and 78.8MB in the end (delta: -25.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:59:19,580 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 68.9MB in the beginning and 68.9MB in the end (delta: 54.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:59:19,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.41ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 52.7MB in the beginning and 91.3MB in the end (delta: -38.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-11-23 16:59:19,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.04ms. Allocated memory is still 115.3MB. Free memory was 91.1MB in the beginning and 89.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:59:19,585 INFO L158 Benchmark]: Boogie Preprocessor took 48.06ms. Allocated memory is still 115.3MB. Free memory was 89.7MB in the beginning and 88.7MB in the end (delta: 948.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:59:19,586 INFO L158 Benchmark]: RCFGBuilder took 409.92ms. Allocated memory is still 115.3MB. Free memory was 88.7MB in the beginning and 78.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 16:59:19,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 68.9MB in the beginning and 68.9MB in the end (delta: 54.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.41ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 52.7MB in the beginning and 91.3MB in the end (delta: -38.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.04ms. Allocated memory is still 115.3MB. Free memory was 91.1MB in the beginning and 89.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.06ms. Allocated memory is still 115.3MB. Free memory was 89.7MB in the beginning and 88.7MB in the end (delta: 948.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 409.92ms. Allocated memory is still 115.3MB. Free memory was 88.7MB in the beginning and 78.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 16:59:19,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl --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 4971cb0b49f8cd6920aed64e922b55ffc2bc14d188aa433fccbb1000a12773a3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:59:22,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:59:22,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:59:22,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:59:22,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:59:22,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:59:22,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:59:22,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:59:22,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:59:22,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:59:22,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:59:22,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:59:22,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:59:22,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:59:22,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:59:22,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:59:22,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:59:22,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:59:22,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:59:22,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:59:22,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:59:22,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:59:22,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:59:22,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:59:22,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:59:22,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:59:22,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:59:22,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:59:22,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:59:22,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:59:22,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:59:22,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:59:22,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:59:22,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:59:22,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:59:22,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:59:22,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:59:22,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:59:22,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:59:22,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:59:22,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:59:22,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-23 16:59:22,602 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:59:22,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:59:22,603 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:59:22,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:59:22,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:59:22,604 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:59:22,604 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:59:22,605 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:59:22,605 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:59:22,605 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:59:22,606 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:59:22,606 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:59:22,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 16:59:22,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 16:59:22,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:59:22,608 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:59:22,609 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 16:59:22,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:59:22,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:59:22,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:59:22,610 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 16:59:22,610 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 16:59:22,611 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 16:59:22,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:59:22,611 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:59:22,612 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:59:22,612 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:59:22,612 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:59:22,613 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:59:22,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:59:22,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:59:22,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:59:22,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:59:22,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:59:22,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:59:22,615 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:59:22,615 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:59:22,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:59:22,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:59:22,616 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4971cb0b49f8cd6920aed64e922b55ffc2bc14d188aa433fccbb1000a12773a3 [2021-11-23 16:59:23,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:59:23,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:59:23,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:59:23,107 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:59:23,108 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:59:23,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/memsafety-ext3/scopes2.c [2021-11-23 16:59:23,201 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/data/616d75830/fcbdd4378c0542438a26b2b853bf829e/FLAGc2ae64bfa [2021-11-23 16:59:23,801 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:59:23,802 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/sv-benchmarks/c/memsafety-ext3/scopes2.c [2021-11-23 16:59:23,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/data/616d75830/fcbdd4378c0542438a26b2b853bf829e/FLAGc2ae64bfa [2021-11-23 16:59:24,142 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/data/616d75830/fcbdd4378c0542438a26b2b853bf829e [2021-11-23 16:59:24,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:59:24,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:59:24,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:59:24,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:59:24,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:59:24,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:59:24" (1/1) ... [2021-11-23 16:59:24,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b5c72f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:24, skipping insertion in model container [2021-11-23 16:59:24,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:59:24" (1/1) ... [2021-11-23 16:59:24,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:59:24,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:59:24,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:59:24,337 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:59:24,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:59:24,372 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:59:24,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:24 WrapperNode [2021-11-23 16:59:24,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:59:24,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:59:24,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:59:24,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:59:24,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:24" (1/1) ... [2021-11-23 16:59:24,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:24" (1/1) ... [2021-11-23 16:59:24,427 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2021-11-23 16:59:24,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:59:24,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:59:24,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:59:24,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:59:24,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:24" (1/1) ... [2021-11-23 16:59:24,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:24" (1/1) ... [2021-11-23 16:59:24,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:24" (1/1) ... [2021-11-23 16:59:24,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:24" (1/1) ... [2021-11-23 16:59:24,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:24" (1/1) ... [2021-11-23 16:59:24,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:24" (1/1) ... [2021-11-23 16:59:24,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:24" (1/1) ... [2021-11-23 16:59:24,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:59:24,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:59:24,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:59:24,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:59:24,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:24" (1/1) ... [2021-11-23 16:59:24,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:59:24,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:59:24,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:59:24,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:59:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:59:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:59:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 16:59:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 16:59:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 16:59:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:59:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:59:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 16:59:24,703 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:59:24,704 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:59:24,892 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:59:24,899 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:59:24,899 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 16:59:24,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:59:24 BoogieIcfgContainer [2021-11-23 16:59:24,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:59:24,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:59:24,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:59:24,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:59:24,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:59:24" (1/3) ... [2021-11-23 16:59:24,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bac5cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:59:24, skipping insertion in model container [2021-11-23 16:59:24,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:24" (2/3) ... [2021-11-23 16:59:24,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bac5cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:59:24, skipping insertion in model container [2021-11-23 16:59:24,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:59:24" (3/3) ... [2021-11-23 16:59:24,910 INFO L111 eAbstractionObserver]: Analyzing ICFG scopes2.c [2021-11-23 16:59:24,916 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:59:24,916 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-23 16:59:25,003 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:59:25,013 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 [2021-11-23 16:59:25,014 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-23 16:59:25,036 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 14 states have internal predecessors, (15), 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) [2021-11-23 16:59:25,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 16:59:25,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:59:25,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 16:59:25,056 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1 more)] === [2021-11-23 16:59:25,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:59:25,072 INFO L85 PathProgramCache]: Analyzing trace with hash 28693828, now seen corresponding path program 1 times [2021-11-23 16:59:25,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:59:25,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375741497] [2021-11-23 16:59:25,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:59:25,089 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:59:25,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:59:25,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:59:25,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:59:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 16:59:25,264 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 16:59:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 16:59:25,343 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-23 16:59:25,348 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 16:59:25,351 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0REQUIRES_VIOLATION (4 of 5 remaining) [2021-11-23 16:59:25,354 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION (3 of 5 remaining) [2021-11-23 16:59:25,356 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (2 of 5 remaining) [2021-11-23 16:59:25,357 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (1 of 5 remaining) [2021-11-23 16:59:25,357 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (0 of 5 remaining) [2021-11-23 16:59:25,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 16:59:25,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:59:25,575 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-23 16:59:25,579 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 16:59:25,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:59:25 BoogieIcfgContainer [2021-11-23 16:59:25,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 16:59:25,612 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 16:59:25,612 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 16:59:25,613 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 16:59:25,613 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:59:24" (3/4) ... [2021-11-23 16:59:25,615 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 16:59:25,672 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/witness.graphml [2021-11-23 16:59:25,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 16:59:25,675 INFO L158 Benchmark]: Toolchain (without parser) took 1528.46ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 43.4MB in the beginning and 62.0MB in the end (delta: -18.7MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2021-11-23 16:59:25,675 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 62.9MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:59:25,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.24ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 33.5MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 16:59:25,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.66ms. Allocated memory is still 62.9MB. Free memory was 33.5MB in the beginning and 47.2MB in the end (delta: -13.6MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2021-11-23 16:59:25,678 INFO L158 Benchmark]: Boogie Preprocessor took 75.32ms. Allocated memory is still 62.9MB. Free memory was 47.2MB in the beginning and 46.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:59:25,679 INFO L158 Benchmark]: RCFGBuilder took 396.82ms. Allocated memory is still 62.9MB. Free memory was 46.0MB in the beginning and 36.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 16:59:25,680 INFO L158 Benchmark]: TraceAbstraction took 704.41ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 35.8MB in the beginning and 63.9MB in the end (delta: -28.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:59:25,680 INFO L158 Benchmark]: Witness Printer took 61.15ms. Allocated memory is still 86.0MB. Free memory was 63.9MB in the beginning and 62.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:59:25,688 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 62.9MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.24ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 33.5MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.66ms. Allocated memory is still 62.9MB. Free memory was 33.5MB in the beginning and 47.2MB in the end (delta: -13.6MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.32ms. Allocated memory is still 62.9MB. Free memory was 47.2MB in the beginning and 46.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 396.82ms. Allocated memory is still 62.9MB. Free memory was 46.0MB in the beginning and 36.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 704.41ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 35.8MB in the beginning and 63.9MB in the end (delta: -28.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 61.15ms. Allocated memory is still 86.0MB. Free memory was 63.9MB in the beginning and 62.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: 18]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L5] int *myPointerA = ((void*) 0); [L6] int *myPointerB = ((void*) 0); VAL [myPointerA={0:0}, myPointerB={0:0}] [L8] COND TRUE __VERIFIER_nondet_int() [L10] int myNumberA = 7; [L11] myPointerA = &myNumberA [L10] int myNumberA = 7; VAL [myPointerA={3:0}, myPointerB={0:0}] [L15] int myNumberB = 3; [L16] myPointerB = &myNumberB VAL [myNumberB={-2147483648:0}, myPointerA={3:0}, myPointerB={-2147483648:0}] [L18] \read(*myPointerA) - UnprovableResult [Line: 18]: 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 pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 4]: 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, 15 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 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! [2021-11-23 16:59:25,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb83c16-97ef-490b-b5be-9c2773ef83e1/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)