./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 07a396ef153f1ca8e856eefcfa25d3d77eb73f779a009e48698bf5ce12969740 --- 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-dbf71c6-m [2022-10-17 16:38:38,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:38:38,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:38:38,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:38:38,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:38:38,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:38:38,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:38:38,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:38:38,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:38:38,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:38:38,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:38:38,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:38:38,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:38:38,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:38:38,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:38:38,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:38:38,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:38:38,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:38:38,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:38:38,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:38:38,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:38:38,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:38:38,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:38:38,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:38:38,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:38:38,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:38:38,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:38:38,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:38:38,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:38:38,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:38:38,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:38:38,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:38:38,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:38:38,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:38:38,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:38:38,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:38:38,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:38:38,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:38:38,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:38:38,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:38:38,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:38:38,370 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-10-17 16:38:38,412 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:38:38,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:38:38,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:38:38,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:38:38,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:38:38,414 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:38:38,414 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:38:38,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:38:38,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:38:38,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:38:38,415 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 16:38:38,415 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 16:38:38,415 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 16:38:38,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:38:38,416 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:38:38,416 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:38:38,416 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:38:38,416 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:38:38,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:38:38,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:38:38,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:38:38,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:38:38,417 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:38:38,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:38:38,418 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_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07a396ef153f1ca8e856eefcfa25d3d77eb73f779a009e48698bf5ce12969740 [2022-10-17 16:38:38,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:38:38,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:38:38,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:38:38,689 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:38:38,690 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:38:38,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2022-10-17 16:38:38,758 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/data/30d17e58b/b781771592d840c99611fb8a9e2ede2c/FLAG21e3a181a [2022-10-17 16:38:39,199 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:38:39,200 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2022-10-17 16:38:39,206 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/data/30d17e58b/b781771592d840c99611fb8a9e2ede2c/FLAG21e3a181a [2022-10-17 16:38:39,570 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/data/30d17e58b/b781771592d840c99611fb8a9e2ede2c [2022-10-17 16:38:39,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:38:39,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:38:39,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:38:39,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:38:39,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:38:39,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:38:39" (1/1) ... [2022-10-17 16:38:39,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc4a885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:39, skipping insertion in model container [2022-10-17 16:38:39,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:38:39" (1/1) ... [2022-10-17 16:38:39,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:38:39,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:38:39,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:38:39,816 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:38:39,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:38:39,865 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:38:39,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:39 WrapperNode [2022-10-17 16:38:39,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:38:39,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:38:39,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:38:39,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:38:39,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:39" (1/1) ... [2022-10-17 16:38:39,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:39" (1/1) ... [2022-10-17 16:38:39,922 INFO L138 Inliner]: procedures = 9, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2022-10-17 16:38:39,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:38:39,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:38:39,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:38:39,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:38:39,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:39" (1/1) ... [2022-10-17 16:38:39,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:39" (1/1) ... [2022-10-17 16:38:39,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:39" (1/1) ... [2022-10-17 16:38:39,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:39" (1/1) ... [2022-10-17 16:38:39,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:39" (1/1) ... [2022-10-17 16:38:39,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:39" (1/1) ... [2022-10-17 16:38:39,971 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:39" (1/1) ... [2022-10-17 16:38:39,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:39" (1/1) ... [2022-10-17 16:38:39,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:38:39,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:38:39,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:38:39,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:38:39,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:39" (1/1) ... [2022-10-17 16:38:39,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:38:39,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:38:40,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:38:40,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:38:40,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:38:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:38:40,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:38:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:38:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 16:38:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:38:40,149 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:38:40,151 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:38:40,415 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:38:40,518 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:38:40,518 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-17 16:38:40,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:38:40 BoogieIcfgContainer [2022-10-17 16:38:40,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:38:40,522 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:38:40,522 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:38:40,532 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:38:40,532 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:38:40" (1/1) ... [2022-10-17 16:38:40,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:38:40,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:40,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2022-10-17 16:38:40,635 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-10-17 16:38:40,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:38:40,638 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:40,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:40,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:38:40,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:40,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2022-10-17 16:38:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-10-17 16:38:40,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:38:40,840 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:40,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:40,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:38:40,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:40,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2022-10-17 16:38:40,995 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-10-17 16:38:40,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:38:40,996 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:40,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:41,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:38:41,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:41,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2022-10-17 16:38:41,346 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2022-10-17 16:38:41,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:38:41,347 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:41,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:38:41,367 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:38:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:38:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:38:41,459 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:38:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:38:41,495 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2022-10-17 16:38:41,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:38:41 ImpRootNode [2022-10-17 16:38:41,539 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:38:41,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:38:41,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:38:41,541 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:38:41,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:38:40" (3/4) ... [2022-10-17 16:38:41,547 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:38:41,593 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:38:41,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:38:41,595 INFO L158 Benchmark]: Toolchain (without parser) took 2019.53ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 63.9MB in the beginning and 50.2MB in the end (delta: 13.7MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2022-10-17 16:38:41,595 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 86.0MB. Free memory was 58.2MB in the beginning and 58.1MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:38:41,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.72ms. Allocated memory is still 86.0MB. Free memory was 63.7MB in the beginning and 63.3MB in the end (delta: 361.7kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:38:41,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.93ms. Allocated memory is still 86.0MB. Free memory was 63.3MB in the beginning and 61.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:38:41,598 INFO L158 Benchmark]: Boogie Preprocessor took 50.93ms. Allocated memory is still 86.0MB. Free memory was 61.6MB in the beginning and 60.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:38:41,599 INFO L158 Benchmark]: RCFGBuilder took 545.21ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 43.7MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 16:38:41,600 INFO L158 Benchmark]: CodeCheck took 1017.89ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 43.7MB in the beginning and 51.8MB in the end (delta: -8.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 16:38:41,601 INFO L158 Benchmark]: Witness Printer took 53.02ms. Allocated memory is still 109.1MB. Free memory was 51.8MB in the beginning and 50.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:38:41,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 24 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 17 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; [L33] i = 0 VAL [b={2:0}, i=0] [L33] COND TRUE i < 100 [L34] CALL foo(i, b, i) [L21] int a[n], i; [L22] i = 0 VAL [\old(n)=0, \old(size)=0, a={3:0}, b={2:0}, b={2:0}, i=0, n=0, size=0] [L22] COND FALSE !(i < size) [L25] CALL bar(a, size + 1) [L12] int res = 0, i; [L13] i = 0 VAL [\old(size)=1, b={3:0}, b={3:0}, i=0, res=0, size=1] [L13] COND TRUE i < size VAL [\old(size)=1, b={3:0}, b={3:0}, i=0, res=0, size=1] [L14] b[i] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65ms. Allocated memory is still 86.0MB. Free memory was 58.2MB in the beginning and 58.1MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.72ms. Allocated memory is still 86.0MB. Free memory was 63.7MB in the beginning and 63.3MB in the end (delta: 361.7kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.93ms. Allocated memory is still 86.0MB. Free memory was 63.3MB in the beginning and 61.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.93ms. Allocated memory is still 86.0MB. Free memory was 61.6MB in the beginning and 60.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.21ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 43.7MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1017.89ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 43.7MB in the beginning and 51.8MB in the end (delta: -8.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 53.02ms. Allocated memory is still 109.1MB. Free memory was 51.8MB in the beginning and 50.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:38:41,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e70d842-7066-4d13-9489-04fa43d3e9fe/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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)