./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/add_last_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_2d38db8a-35a1-49f6-b12e-daa7856f79f1/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d38db8a-35a1-49f6-b12e-daa7856f79f1/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_2d38db8a-35a1-49f6-b12e-daa7856f79f1/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d38db8a-35a1-49f6-b12e-daa7856f79f1/bin/ukojak-rkRKPMF4O4/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/add_last_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d38db8a-35a1-49f6-b12e-daa7856f79f1/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_2d38db8a-35a1-49f6-b12e-daa7856f79f1/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 48fd0d3fe19d1deb0a082df55a1274a55060d743a98a6889cf18bd32ae5a67a0 --- 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 18:38:56,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 18:38:56,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 18:38:56,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 18:38:56,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 18:38:56,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 18:38:56,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 18:38:56,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 18:38:56,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 18:38:56,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 18:38:56,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 18:38:56,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 18:38:56,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 18:38:56,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 18:38:56,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 18:38:56,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 18:38:56,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 18:38:56,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 18:38:56,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 18:38:56,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 18:38:56,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 18:38:56,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 18:38:56,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 18:38:56,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 18:38:56,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 18:38:56,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 18:38:56,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 18:38:56,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 18:38:56,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 18:38:56,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 18:38:56,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 18:38:56,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 18:38:56,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 18:38:56,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 18:38:56,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 18:38:56,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 18:38:56,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 18:38:56,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 18:38:56,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 18:38:56,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 18:38:56,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 18:38:56,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d38db8a-35a1-49f6-b12e-daa7856f79f1/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-12-14 18:38:56,616 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 18:38:56,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 18:38:56,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 18:38:56,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 18:38:56,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 18:38:56,618 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 18:38:56,618 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 18:38:56,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 18:38:56,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 18:38:56,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 18:38:56,618 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 18:38:56,618 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 18:38:56,619 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 18:38:56,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 18:38:56,619 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 18:38:56,619 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 18:38:56,619 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 18:38:56,619 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 18:38:56,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 18:38:56,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:38:56,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 18:38:56,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 18:38:56,620 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 18:38:56,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 18:38:56,621 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_2d38db8a-35a1-49f6-b12e-daa7856f79f1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d38db8a-35a1-49f6-b12e-daa7856f79f1/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48fd0d3fe19d1deb0a082df55a1274a55060d743a98a6889cf18bd32ae5a67a0 [2022-12-14 18:38:56,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 18:38:56,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 18:38:56,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 18:38:56,806 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 18:38:56,807 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 18:38:56,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d38db8a-35a1-49f6-b12e-daa7856f79f1/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/array-memsafety/add_last_unsafe.i [2022-12-14 18:38:59,375 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 18:38:59,549 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 18:38:59,550 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d38db8a-35a1-49f6-b12e-daa7856f79f1/sv-benchmarks/c/array-memsafety/add_last_unsafe.i [2022-12-14 18:38:59,559 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d38db8a-35a1-49f6-b12e-daa7856f79f1/bin/ukojak-rkRKPMF4O4/data/c7b08b9a3/bace78f3eb834af9b70a05b14e14b1a6/FLAG866ed8d14 [2022-12-14 18:38:59,571 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d38db8a-35a1-49f6-b12e-daa7856f79f1/bin/ukojak-rkRKPMF4O4/data/c7b08b9a3/bace78f3eb834af9b70a05b14e14b1a6 [2022-12-14 18:38:59,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 18:38:59,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 18:38:59,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 18:38:59,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 18:38:59,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 18:38:59,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:38:59" (1/1) ... [2022-12-14 18:38:59,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c1734d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:59, skipping insertion in model container [2022-12-14 18:38:59,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:38:59" (1/1) ... [2022-12-14 18:38:59,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 18:38:59,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 18:38:59,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:38:59,848 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 18:38:59,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:38:59,908 INFO L208 MainTranslator]: Completed translation [2022-12-14 18:38:59,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:59 WrapperNode [2022-12-14 18:38:59,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 18:38:59,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 18:38:59,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 18:38:59,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 18:38:59,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:59" (1/1) ... [2022-12-14 18:38:59,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:59" (1/1) ... [2022-12-14 18:38:59,940 INFO L138 Inliner]: procedures = 115, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-12-14 18:38:59,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 18:38:59,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 18:38:59,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 18:38:59,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 18:38:59,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:59" (1/1) ... [2022-12-14 18:38:59,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:59" (1/1) ... [2022-12-14 18:38:59,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:59" (1/1) ... [2022-12-14 18:38:59,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:59" (1/1) ... [2022-12-14 18:38:59,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:59" (1/1) ... [2022-12-14 18:38:59,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:59" (1/1) ... [2022-12-14 18:38:59,960 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:59" (1/1) ... [2022-12-14 18:38:59,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:59" (1/1) ... [2022-12-14 18:38:59,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 18:38:59,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 18:38:59,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 18:38:59,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 18:38:59,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:59" (1/1) ... [2022-12-14 18:38:59,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:38:59,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d38db8a-35a1-49f6-b12e-daa7856f79f1/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 18:38:59,993 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d38db8a-35a1-49f6-b12e-daa7856f79f1/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 18:38:59,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d38db8a-35a1-49f6-b12e-daa7856f79f1/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 18:39:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 18:39:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 18:39:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 18:39:00,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 18:39:00,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 18:39:00,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 18:39:00,106 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 18:39:00,108 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 18:39:00,224 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 18:39:00,252 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 18:39:00,252 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 18:39:00,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:39:00 BoogieIcfgContainer [2022-12-14 18:39:00,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 18:39:00,255 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 18:39:00,255 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 18:39:00,263 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 18:39:00,263 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:39:00" (1/1) ... [2022-12-14 18:39:00,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 18:39:00,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:39:00,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 26 states and 29 transitions. [2022-12-14 18:39:00,312 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-12-14 18:39:00,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 18:39:00,314 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:39:00,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:39:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:39:00,445 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 18:39:00,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:39:00,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2022-12-14 18:39:00,466 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-12-14 18:39:00,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 18:39:00,469 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:39:00,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:39:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:39:00,558 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 18:39:00,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:39:00,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 27 states and 29 transitions. [2022-12-14 18:39:00,635 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-12-14 18:39:00,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 18:39:00,636 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:39:00,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:39:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:39:00,685 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 18:39:00,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:39:00,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 28 states and 31 transitions. [2022-12-14 18:39:00,829 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-12-14 18:39:00,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 18:39:00,829 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:39:00,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:39:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 18:39:00,844 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 18:39:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 18:39:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 18:39:00,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 18:39:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 18:39:00,895 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2022-12-14 18:39:00,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 06:39:00 ImpRootNode [2022-12-14 18:39:00,915 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 18:39:00,915 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 18:39:00,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 18:39:00,916 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 18:39:00,916 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:39:00" (3/4) ... [2022-12-14 18:39:00,917 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 18:39:00,941 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d38db8a-35a1-49f6-b12e-daa7856f79f1/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 18:39:00,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 18:39:00,941 INFO L158 Benchmark]: Toolchain (without parser) took 1366.58ms. Allocated memory was 123.7MB in the beginning and 186.6MB in the end (delta: 62.9MB). Free memory was 72.4MB in the beginning and 91.7MB in the end (delta: -19.2MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. [2022-12-14 18:39:00,942 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 123.7MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 18:39:00,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.88ms. Allocated memory was 123.7MB in the beginning and 186.6MB in the end (delta: 62.9MB). Free memory was 72.4MB in the beginning and 153.5MB in the end (delta: -81.1MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2022-12-14 18:39:00,942 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.57ms. Allocated memory is still 186.6MB. Free memory was 153.5MB in the beginning and 151.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:39:00,943 INFO L158 Benchmark]: Boogie Preprocessor took 22.80ms. Allocated memory is still 186.6MB. Free memory was 151.4MB in the beginning and 150.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:39:00,943 INFO L158 Benchmark]: RCFGBuilder took 290.33ms. Allocated memory is still 186.6MB. Free memory was 150.4MB in the beginning and 135.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 18:39:00,944 INFO L158 Benchmark]: CodeCheck took 660.30ms. Allocated memory is still 186.6MB. Free memory was 135.7MB in the beginning and 92.7MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-12-14 18:39:00,944 INFO L158 Benchmark]: Witness Printer took 25.39ms. Allocated memory is still 186.6MB. Free memory was 92.7MB in the beginning and 91.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:39:00,946 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, 26 locations, 13 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, 33 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 12 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 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: [L513] int i, j; [L514] int length = __VERIFIER_nondet_int(); [L515] COND TRUE length < 1 [L515] length = 1 [L516] int *arr = __builtin_alloca (length); VAL [__builtin_alloca (length)={2:0}, arr={2:0}, length=1] [L517] COND FALSE !(!arr) [L518] int *a = arr; [L520] int k = 0; VAL [__builtin_alloca (length)={2:0}, a={2:0}, arr={2:0}, k=0, length=1] [L520] COND TRUE k < length [L522] arr[k] = __VERIFIER_nondet_int() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 123.7MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.88ms. Allocated memory was 123.7MB in the beginning and 186.6MB in the end (delta: 62.9MB). Free memory was 72.4MB in the beginning and 153.5MB in the end (delta: -81.1MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.57ms. Allocated memory is still 186.6MB. Free memory was 153.5MB in the beginning and 151.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.80ms. Allocated memory is still 186.6MB. Free memory was 151.4MB in the beginning and 150.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 290.33ms. Allocated memory is still 186.6MB. Free memory was 150.4MB in the beginning and 135.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 660.30ms. Allocated memory is still 186.6MB. Free memory was 135.7MB in the beginning and 92.7MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 25.39ms. Allocated memory is still 186.6MB. Free memory was 92.7MB in the beginning and 91.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-14 18:39:00,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d38db8a-35a1-49f6-b12e-daa7856f79f1/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)