./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 2329fc70 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_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4 --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-2329fc7 [2022-12-14 21:57:15,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 21:57:15,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 21:57:15,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 21:57:15,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 21:57:15,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 21:57:15,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 21:57:15,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 21:57:15,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 21:57:15,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 21:57:15,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 21:57:15,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 21:57:15,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 21:57:15,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 21:57:15,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 21:57:15,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 21:57:15,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 21:57:15,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 21:57:15,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 21:57:15,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 21:57:15,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 21:57:15,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 21:57:15,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 21:57:15,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 21:57:15,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 21:57:15,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 21:57:15,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 21:57:15,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 21:57:15,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 21:57:15,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 21:57:15,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 21:57:15,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 21:57:15,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 21:57:15,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 21:57:15,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 21:57:15,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 21:57:15,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 21:57:15,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 21:57:15,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 21:57:15,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 21:57:15,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 21:57:15,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-12-14 21:57:15,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 21:57:15,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 21:57:15,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 21:57:15,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 21:57:15,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 21:57:15,791 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 21:57:15,791 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 21:57:15,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 21:57:15,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 21:57:15,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 21:57:15,792 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 21:57:15,792 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 21:57:15,792 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 21:57:15,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 21:57:15,792 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 21:57:15,792 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 21:57:15,793 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 21:57:15,793 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 21:57:15,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 21:57:15,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:57:15,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 21:57:15,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 21:57:15,794 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 21:57:15,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 21:57:15,794 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_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07a396ef153f1ca8e856eefcfa25d3d77eb73f779a009e48698bf5ce12969740 [2022-12-14 21:57:15,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 21:57:15,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 21:57:15,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 21:57:15,983 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 21:57:15,983 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 21:57:15,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2022-12-14 21:57:18,539 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 21:57:18,696 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 21:57:18,697 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2022-12-14 21:57:18,701 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/data/fab7eb13d/8e6616a4d115422e8055b1bf11280f73/FLAG724b868d1 [2022-12-14 21:57:19,113 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/data/fab7eb13d/8e6616a4d115422e8055b1bf11280f73 [2022-12-14 21:57:19,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 21:57:19,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 21:57:19,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 21:57:19,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 21:57:19,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 21:57:19,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:57:19" (1/1) ... [2022-12-14 21:57:19,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a170552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:19, skipping insertion in model container [2022-12-14 21:57:19,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:57:19" (1/1) ... [2022-12-14 21:57:19,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 21:57:19,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 21:57:19,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:57:19,245 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 21:57:19,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:57:19,267 INFO L208 MainTranslator]: Completed translation [2022-12-14 21:57:19,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:19 WrapperNode [2022-12-14 21:57:19,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 21:57:19,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 21:57:19,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 21:57:19,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 21:57:19,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:19" (1/1) ... [2022-12-14 21:57:19,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:19" (1/1) ... [2022-12-14 21:57:19,292 INFO L138 Inliner]: procedures = 9, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2022-12-14 21:57:19,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 21:57:19,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 21:57:19,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 21:57:19,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 21:57:19,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:19" (1/1) ... [2022-12-14 21:57:19,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:19" (1/1) ... [2022-12-14 21:57:19,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:19" (1/1) ... [2022-12-14 21:57:19,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:19" (1/1) ... [2022-12-14 21:57:19,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:19" (1/1) ... [2022-12-14 21:57:19,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:19" (1/1) ... [2022-12-14 21:57:19,308 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:19" (1/1) ... [2022-12-14 21:57:19,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:19" (1/1) ... [2022-12-14 21:57:19,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 21:57:19,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 21:57:19,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 21:57:19,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 21:57:19,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:19" (1/1) ... [2022-12-14 21:57:19,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:57:19,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 21:57:19,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 21:57:19,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 21:57:19,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 21:57:19,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 21:57:19,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 21:57:19,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 21:57:19,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 21:57:19,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 21:57:19,428 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 21:57:19,430 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 21:57:19,596 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 21:57:19,658 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 21:57:19,658 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 21:57:19,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:57:19 BoogieIcfgContainer [2022-12-14 21:57:19,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 21:57:19,662 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 21:57:19,662 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 21:57:19,674 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 21:57:19,674 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:57:19" (1/1) ... [2022-12-14 21:57:19,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 21:57:19,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:57:19,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2022-12-14 21:57:19,736 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-12-14 21:57:19,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 21:57:19,738 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:57:19,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:57:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:57:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:57:19,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:57:19,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2022-12-14 21:57:19,916 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-12-14 21:57:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 21:57:19,919 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:57:19,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:57:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:57:20,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:57:20,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:57:20,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2022-12-14 21:57:20,036 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-12-14 21:57:20,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 21:57:20,036 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:57:20,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:57:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:57:20,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:57:20,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:57:20,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2022-12-14 21:57:20,200 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2022-12-14 21:57:20,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 21:57:20,200 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:57:20,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:57:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 21:57:20,213 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 21:57:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 21:57:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 21:57:20,255 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 21:57:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 21:57:20,272 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2022-12-14 21:57:20,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 09:57:20 ImpRootNode [2022-12-14 21:57:20,289 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 21:57:20,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 21:57:20,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 21:57:20,290 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 21:57:20,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:57:19" (3/4) ... [2022-12-14 21:57:20,292 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 21:57:20,316 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 21:57:20,317 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 21:57:20,317 INFO L158 Benchmark]: Toolchain (without parser) took 1201.80ms. Allocated memory was 115.3MB in the beginning and 174.1MB in the end (delta: 58.7MB). Free memory was 80.6MB in the beginning and 115.8MB in the end (delta: -35.2MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-12-14 21:57:20,318 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory was 81.7MB in the beginning and 81.7MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:57:20,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 151.60ms. Allocated memory is still 115.3MB. Free memory was 80.6MB in the beginning and 70.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 21:57:20,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.60ms. Allocated memory is still 115.3MB. Free memory was 70.5MB in the beginning and 69.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:57:20,319 INFO L158 Benchmark]: Boogie Preprocessor took 17.02ms. Allocated memory is still 115.3MB. Free memory was 69.1MB in the beginning and 67.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:57:20,319 INFO L158 Benchmark]: RCFGBuilder took 350.65ms. Allocated memory is still 115.3MB. Free memory was 67.5MB in the beginning and 50.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 21:57:20,319 INFO L158 Benchmark]: CodeCheck took 627.42ms. Allocated memory was 115.3MB in the beginning and 174.1MB in the end (delta: 58.7MB). Free memory was 50.8MB in the beginning and 117.9MB in the end (delta: -67.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:57:20,320 INFO L158 Benchmark]: Witness Printer took 26.71ms. Allocated memory is still 174.1MB. Free memory was 117.9MB in the beginning and 115.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:57:20,321 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: 0.6s, 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s 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 0.14ms. Allocated memory is still 115.3MB. Free memory was 81.7MB in the beginning and 81.7MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 151.60ms. Allocated memory is still 115.3MB. Free memory was 80.6MB in the beginning and 70.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.60ms. Allocated memory is still 115.3MB. Free memory was 70.5MB in the beginning and 69.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.02ms. Allocated memory is still 115.3MB. Free memory was 69.1MB in the beginning and 67.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.65ms. Allocated memory is still 115.3MB. Free memory was 67.5MB in the beginning and 50.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 627.42ms. Allocated memory was 115.3MB in the beginning and 174.1MB in the end (delta: 58.7MB). Free memory was 50.8MB in the beginning and 117.9MB in the end (delta: -67.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 26.71ms. Allocated memory is still 174.1MB. Free memory was 117.9MB in the beginning and 115.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-14 21:57:20,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_890dc93e-e716-4c8c-b980-dc2196197525/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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)