./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c2abc4818f3da11ae6301593bd436ebe629d07f999067705d8f0ca0fc41bf695 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:07:53,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:07:53,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:07:53,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:07:53,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:07:53,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:07:53,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:07:53,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:07:53,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:07:53,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:07:53,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:07:53,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:07:53,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:07:53,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:07:53,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:07:53,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:07:53,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:07:53,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:07:53,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:07:53,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:07:53,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:07:53,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:07:53,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:07:53,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:07:53,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:07:53,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:07:53,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:07:53,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:07:53,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:07:53,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:07:53,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:07:53,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:07:53,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:07:53,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:07:53,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:07:53,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:07:53,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:07:53,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:07:53,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:07:53,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:07:53,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:07:53,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 21:07:53,484 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:07:53,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:07:53,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:07:53,486 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:07:53,487 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:07:53,487 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:07:53,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:07:53,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:07:53,489 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:07:53,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:07:53,490 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:07:53,490 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:07:53,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:07:53,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:07:53,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:07:53,491 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 21:07:53,492 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 21:07:53,492 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 21:07:53,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:07:53,492 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 21:07:53,492 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:07:53,493 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:07:53,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:07:53,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:07:53,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:07:53,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:07:53,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:07:53,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:07:53,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:07:53,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:07:53,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2abc4818f3da11ae6301593bd436ebe629d07f999067705d8f0ca0fc41bf695 [2022-11-18 21:07:53,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:07:53,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:07:53,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:07:53,828 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:07:53,828 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:07:53,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c [2022-11-18 21:07:53,904 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/data/d2eb227e2/22c12b9569b347e6812b747f2d0977b3/FLAG1264e5060 [2022-11-18 21:07:54,387 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:07:54,388 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c [2022-11-18 21:07:54,395 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/data/d2eb227e2/22c12b9569b347e6812b747f2d0977b3/FLAG1264e5060 [2022-11-18 21:07:54,784 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/data/d2eb227e2/22c12b9569b347e6812b747f2d0977b3 [2022-11-18 21:07:54,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:07:54,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:07:54,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:07:54,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:07:54,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:07:54,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:07:54" (1/1) ... [2022-11-18 21:07:54,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f36e899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:54, skipping insertion in model container [2022-11-18 21:07:54,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:07:54" (1/1) ... [2022-11-18 21:07:54,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:07:54,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:07:54,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:07:54,996 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:07:55,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:07:55,026 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:07:55,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:55 WrapperNode [2022-11-18 21:07:55,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:07:55,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:07:55,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:07:55,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:07:55,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:55" (1/1) ... [2022-11-18 21:07:55,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:55" (1/1) ... [2022-11-18 21:07:55,067 INFO L138 Inliner]: procedures = 8, calls = 4, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-18 21:07:55,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:07:55,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:07:55,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:07:55,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:07:55,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:55" (1/1) ... [2022-11-18 21:07:55,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:55" (1/1) ... [2022-11-18 21:07:55,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:55" (1/1) ... [2022-11-18 21:07:55,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:55" (1/1) ... [2022-11-18 21:07:55,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:55" (1/1) ... [2022-11-18 21:07:55,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:55" (1/1) ... [2022-11-18 21:07:55,094 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:55" (1/1) ... [2022-11-18 21:07:55,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:55" (1/1) ... [2022-11-18 21:07:55,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:07:55,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:07:55,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:07:55,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:07:55,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:55" (1/1) ... [2022-11-18 21:07:55,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:07:55,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:07:55,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:07:55,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:07:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:07:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:07:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:07:55,289 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:07:55,291 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:07:55,390 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:07:55,396 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:07:55,396 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 21:07:55,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:07:55 BoogieIcfgContainer [2022-11-18 21:07:55,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:07:55,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:07:55,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:07:55,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:07:55,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:07:54" (1/3) ... [2022-11-18 21:07:55,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@919c6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:07:55, skipping insertion in model container [2022-11-18 21:07:55,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:55" (2/3) ... [2022-11-18 21:07:55,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@919c6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:07:55, skipping insertion in model container [2022-11-18 21:07:55,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:07:55" (3/3) ... [2022-11-18 21:07:55,408 INFO L112 eAbstractionObserver]: Analyzing ICFG stroeder1_unsafe.c [2022-11-18 21:07:55,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:07:55,429 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-18 21:07:55,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:07:55,493 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@52f4d829, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:07:55,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-18 21:07:55,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 10 states have (on average 1.5) internal successors, (15), 13 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) [2022-11-18 21:07:55,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 21:07:55,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:55,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 21:07:55,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 21:07:55,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:55,521 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-11-18 21:07:55,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:55,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019526297] [2022-11-18 21:07:55,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:55,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:07:55,666 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:07:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:07:55,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:07:55,727 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 21:07:55,728 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 3 remaining) [2022-11-18 21:07:55,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2022-11-18 21:07:55,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2022-11-18 21:07:55,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:07:55,738 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-18 21:07:55,746 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:07:55,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:07:55 BoogieIcfgContainer [2022-11-18 21:07:55,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:07:55,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:07:55,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:07:55,776 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:07:55,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:07:55" (3/4) ... [2022-11-18 21:07:55,779 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 21:07:55,834 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 21:07:55,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:07:55,835 INFO L158 Benchmark]: Toolchain (without parser) took 1046.47ms. Allocated memory is still 98.6MB. Free memory was 64.3MB in the beginning and 48.7MB in the end (delta: 15.6MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-11-18 21:07:55,836 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:07:55,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.52ms. Allocated memory is still 98.6MB. Free memory was 64.0MB in the beginning and 76.6MB in the end (delta: -12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 21:07:55,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.85ms. Allocated memory is still 98.6MB. Free memory was 76.6MB in the beginning and 75.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:07:55,839 INFO L158 Benchmark]: Boogie Preprocessor took 35.43ms. Allocated memory is still 98.6MB. Free memory was 75.0MB in the beginning and 73.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:07:55,839 INFO L158 Benchmark]: RCFGBuilder took 293.69ms. Allocated memory is still 98.6MB. Free memory was 73.9MB in the beginning and 64.2MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 21:07:55,840 INFO L158 Benchmark]: TraceAbstraction took 372.29ms. Allocated memory is still 98.6MB. Free memory was 63.7MB in the beginning and 50.2MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 21:07:55,840 INFO L158 Benchmark]: Witness Printer took 59.02ms. Allocated memory is still 98.6MB. Free memory was 50.2MB in the beginning and 48.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:07:55,847 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 98.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.52ms. Allocated memory is still 98.6MB. Free memory was 64.0MB in the beginning and 76.6MB in the end (delta: -12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.85ms. Allocated memory is still 98.6MB. Free memory was 76.6MB in the beginning and 75.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.43ms. Allocated memory is still 98.6MB. Free memory was 75.0MB in the beginning and 73.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 293.69ms. Allocated memory is still 98.6MB. Free memory was 73.9MB in the beginning and 64.2MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 372.29ms. Allocated memory is still 98.6MB. Free memory was 63.7MB in the beginning and 50.2MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 59.02ms. Allocated memory is still 98.6MB. Free memory was 50.2MB in the beginning and 48.7MB in the end (delta: 1.5MB). There was no memory consumed. 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L17] int* numbers; [L18] int array_size = __VERIFIER_nondet_int(); [L19] CALL sumOfThirdBytes(numbers, array_size) [L5] int i, sum; [L6] char* p; [L7] sum = 0 [L8] i = 0 VAL [\old(array_size)=2, array_size=2, i=0, numbers={3:-2}, numbers={3:-2}, sum=0] [L8] COND TRUE i < array_size [L9] p = &(numbers[i]) [L10] p = p + 2 VAL [\old(array_size)=2, array_size=2, i=0, numbers={3:-2}, numbers={3:-2}, p={3:0}, sum=0] [L11] \read(*p) - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 16]: 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, 14 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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! [2022-11-18 21:07:55,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f80aa8-59e6-455c-83cf-e036a0c77b2e/bin/uautomizer-TMbwUNV5ro/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)