./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN --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-6b4ec56 [2022-11-20 10:55:13,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:55:13,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:55:13,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:55:13,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:55:13,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:55:13,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:55:13,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:55:13,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:55:13,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:55:13,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:55:13,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:55:13,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:55:13,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:55:13,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:55:13,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:55:13,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:55:13,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:55:13,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:55:13,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:55:13,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:55:13,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:55:13,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:55:13,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:55:13,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:55:13,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:55:13,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:55:13,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:55:13,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:55:13,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:55:13,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:55:13,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:55:13,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:55:13,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:55:13,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:55:13,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:55:13,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:55:13,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:55:13,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:55:13,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:55:13,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:55:13,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-20 10:55:13,994 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:55:13,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:55:13,995 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:55:13,995 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:55:13,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:55:13,996 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:55:13,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:55:13,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:55:13,997 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:55:13,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:55:13,997 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:55:13,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:55:13,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:55:13,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:55:13,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:55:13,998 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 10:55:13,998 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 10:55:13,999 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 10:55:13,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:55:13,999 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:55:13,999 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:55:14,000 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:55:14,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:55:14,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:55:14,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:55:14,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:55:14,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:55:14,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:55:14,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:55:14,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:55:14,002 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_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2abc4818f3da11ae6301593bd436ebe629d07f999067705d8f0ca0fc41bf695 [2022-11-20 10:55:14,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:55:14,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:55:14,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:55:14,359 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:55:14,360 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:55:14,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c [2022-11-20 10:55:17,306 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:55:17,501 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:55:17,502 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c [2022-11-20 10:55:17,508 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/data/f9c812539/4857648939224535835ae807297b842f/FLAG5635665d8 [2022-11-20 10:55:17,533 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/data/f9c812539/4857648939224535835ae807297b842f [2022-11-20 10:55:17,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:55:17,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:55:17,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:55:17,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:55:17,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:55:17,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:55:17" (1/1) ... [2022-11-20 10:55:17,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b362f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:55:17, skipping insertion in model container [2022-11-20 10:55:17,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:55:17" (1/1) ... [2022-11-20 10:55:17,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:55:17,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:55:17,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:55:17,727 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:55:17,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:55:17,752 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:55:17,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:55:17 WrapperNode [2022-11-20 10:55:17,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:55:17,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:55:17,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:55:17,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:55:17,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:55:17" (1/1) ... [2022-11-20 10:55:17,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:55:17" (1/1) ... [2022-11-20 10:55:17,791 INFO L138 Inliner]: procedures = 8, calls = 4, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-20 10:55:17,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:55:17,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:55:17,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:55:17,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:55:17,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:55:17" (1/1) ... [2022-11-20 10:55:17,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:55:17" (1/1) ... [2022-11-20 10:55:17,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:55:17" (1/1) ... [2022-11-20 10:55:17,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:55:17" (1/1) ... [2022-11-20 10:55:17,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:55:17" (1/1) ... [2022-11-20 10:55:17,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:55:17" (1/1) ... [2022-11-20 10:55:17,826 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:55:17" (1/1) ... [2022-11-20 10:55:17,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:55:17" (1/1) ... [2022-11-20 10:55:17,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:55:17,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:55:17,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:55:17,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:55:17,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:55:17" (1/1) ... [2022-11-20 10:55:17,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:55:17,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:55:17,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:55:17,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:55:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:55:17,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:55:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:55:18,050 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:55:18,052 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:55:18,256 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:55:18,262 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:55:18,262 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:55:18,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:55:18 BoogieIcfgContainer [2022-11-20 10:55:18,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:55:18,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:55:18,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:55:18,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:55:18,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:55:17" (1/3) ... [2022-11-20 10:55:18,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da4a657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:55:18, skipping insertion in model container [2022-11-20 10:55:18,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:55:17" (2/3) ... [2022-11-20 10:55:18,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da4a657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:55:18, skipping insertion in model container [2022-11-20 10:55:18,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:55:18" (3/3) ... [2022-11-20 10:55:18,279 INFO L112 eAbstractionObserver]: Analyzing ICFG stroeder1_unsafe.c [2022-11-20 10:55:18,300 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:55:18,300 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 10:55:18,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:55:18,376 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;@bc60828, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:55:18,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 10:55:18,382 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) [2022-11-20 10:55:18,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 10:55:18,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:55:18,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-20 10:55:18,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-20 10:55:18,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:55:18,400 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-11-20 10:55:18,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:55:18,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347255524] [2022-11-20 10:55:18,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:18,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:55:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:55:18,554 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:55:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:55:18,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:55:18,604 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:55:18,606 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 3 remaining) [2022-11-20 10:55:18,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2022-11-20 10:55:18,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2022-11-20 10:55:18,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:55:18,617 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 10:55:18,623 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:55:18,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:55:18 BoogieIcfgContainer [2022-11-20 10:55:18,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:55:18,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:55:18,652 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:55:18,653 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:55:18,653 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:55:18" (3/4) ... [2022-11-20 10:55:18,656 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 10:55:18,711 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:55:18,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:55:18,714 INFO L158 Benchmark]: Toolchain (without parser) took 1171.55ms. Allocated memory was 119.5MB in the beginning and 176.2MB in the end (delta: 56.6MB). Free memory was 53.3MB in the beginning and 129.2MB in the end (delta: -75.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:55:18,714 INFO L158 Benchmark]: CDTParser took 1.02ms. Allocated memory is still 119.5MB. Free memory was 93.1MB in the beginning and 92.9MB in the end (delta: 122.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:55:18,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.77ms. Allocated memory is still 119.5MB. Free memory was 53.1MB in the beginning and 43.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 10:55:18,718 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.67ms. Allocated memory is still 119.5MB. Free memory was 43.6MB in the beginning and 42.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:55:18,721 INFO L158 Benchmark]: Boogie Preprocessor took 41.73ms. Allocated memory is still 119.5MB. Free memory was 42.1MB in the beginning and 41.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:55:18,721 INFO L158 Benchmark]: RCFGBuilder took 432.24ms. Allocated memory was 119.5MB in the beginning and 176.2MB in the end (delta: 56.6MB). Free memory was 41.0MB in the beginning and 145.5MB in the end (delta: -104.5MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-11-20 10:55:18,723 INFO L158 Benchmark]: TraceAbstraction took 380.54ms. Allocated memory is still 176.2MB. Free memory was 144.4MB in the beginning and 130.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 10:55:18,723 INFO L158 Benchmark]: Witness Printer took 59.94ms. Allocated memory is still 176.2MB. Free memory was 130.8MB in the beginning and 129.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:55:18,726 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02ms. Allocated memory is still 119.5MB. Free memory was 93.1MB in the beginning and 92.9MB in the end (delta: 122.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.77ms. Allocated memory is still 119.5MB. Free memory was 53.1MB in the beginning and 43.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.67ms. Allocated memory is still 119.5MB. Free memory was 43.6MB in the beginning and 42.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.73ms. Allocated memory is still 119.5MB. Free memory was 42.1MB in the beginning and 41.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 432.24ms. Allocated memory was 119.5MB in the beginning and 176.2MB in the end (delta: 56.6MB). Free memory was 41.0MB in the beginning and 145.5MB in the end (delta: -104.5MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * TraceAbstraction took 380.54ms. Allocated memory is still 176.2MB. Free memory was 144.4MB in the beginning and 130.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 59.94ms. Allocated memory is still 176.2MB. Free memory was 130.8MB in the beginning and 129.2MB in the end (delta: 1.6MB). 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, 0.0s 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! [2022-11-20 10:55:18,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c7d1f6-e2dd-4d97-adae-e3be3ce5f256/bin/uautomizer-ug76WZFUDN/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)