./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 870a7e5617be5a547f8d530603b5c27ad6cbb74bb05a83654285fee7bbb92753 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 18:03:37,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:03:37,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:03:37,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:03:37,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:03:37,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:03:37,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:03:37,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:03:37,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:03:37,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:03:37,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:03:37,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:03:37,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:03:37,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:03:37,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:03:37,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:03:37,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:03:37,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:03:37,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:03:37,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:03:37,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:03:37,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:03:37,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:03:37,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:03:37,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:03:37,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:03:37,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:03:37,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:03:37,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:03:37,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:03:37,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:03:37,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:03:37,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:03:37,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:03:37,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:03:37,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:03:37,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:03:37,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:03:37,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:03:37,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:03:37,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:03:37,499 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-11-20 18:03:37,521 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:03:37,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:03:37,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:03:37,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:03:37,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:03:37,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:03:37,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:03:37,523 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 18:03:37,524 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:03:37,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:03:37,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 18:03:37,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:03:37,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:03:37,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:03:37,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:03:37,526 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:03:37,526 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 18:03:37,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:03:37,526 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:03:37,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:03:37,527 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:03:37,527 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:03:37,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:03:37,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:03:37,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:03:37,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:03:37,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:03:37,528 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:03:37,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:03:37,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:03:37,529 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_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 870a7e5617be5a547f8d530603b5c27ad6cbb74bb05a83654285fee7bbb92753 [2022-11-20 18:03:37,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:03:37,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:03:37,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:03:37,829 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:03:37,830 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:03:37,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i [2022-11-20 18:03:40,855 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:03:41,156 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:03:41,156 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/sv-benchmarks/c/array-memsafety/add_last-alloca-1.i [2022-11-20 18:03:41,176 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/data/3bc6aa6ce/1b0d75b0d5614d7d88254e84e0d563ab/FLAGcd7ff906e [2022-11-20 18:03:41,192 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/data/3bc6aa6ce/1b0d75b0d5614d7d88254e84e0d563ab [2022-11-20 18:03:41,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:03:41,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:03:41,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:03:41,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:03:41,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:03:41,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:03:41" (1/1) ... [2022-11-20 18:03:41,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d8b1cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:03:41, skipping insertion in model container [2022-11-20 18:03:41,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:03:41" (1/1) ... [2022-11-20 18:03:41,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:03:41,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:03:41,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:03:41,644 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:03:41,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:03:41,704 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:03:41,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:03:41 WrapperNode [2022-11-20 18:03:41,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:03:41,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:03:41,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:03:41,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:03:41,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:03:41" (1/1) ... [2022-11-20 18:03:41,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:03:41" (1/1) ... [2022-11-20 18:03:41,744 INFO L138 Inliner]: procedures = 115, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2022-11-20 18:03:41,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:03:41,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:03:41,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:03:41,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:03:41,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:03:41" (1/1) ... [2022-11-20 18:03:41,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:03:41" (1/1) ... [2022-11-20 18:03:41,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:03:41" (1/1) ... [2022-11-20 18:03:41,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:03:41" (1/1) ... [2022-11-20 18:03:41,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:03:41" (1/1) ... [2022-11-20 18:03:41,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:03:41" (1/1) ... [2022-11-20 18:03:41,774 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:03:41" (1/1) ... [2022-11-20 18:03:41,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:03:41" (1/1) ... [2022-11-20 18:03:41,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:03:41,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:03:41,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:03:41,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:03:41,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:03:41" (1/1) ... [2022-11-20 18:03:41,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:03:41,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:03:41,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:03:41,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:03:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 18:03:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:03:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:03:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:03:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:03:41,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:03:41,977 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:03:41,979 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:03:42,168 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:03:42,203 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:03:42,204 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 18:03:42,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:03:42 BoogieIcfgContainer [2022-11-20 18:03:42,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:03:42,207 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:03:42,207 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:03:42,217 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:03:42,218 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:03:42" (1/1) ... [2022-11-20 18:03:42,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:03:42,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:03:42,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2022-11-20 18:03:42,277 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-11-20 18:03:42,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 18:03:42,280 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:03:42,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:03:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:03:42,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:03:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:03:42,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2022-11-20 18:03:42,732 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2022-11-20 18:03:42,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 18:03:42,733 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:03:42,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:03:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:03:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:03:42,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:03:42,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2022-11-20 18:03:42,902 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-11-20 18:03:42,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:03:42,902 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:03:42,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:03:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:03:43,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:03:43,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:03:43,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2022-11-20 18:03:43,105 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2022-11-20 18:03:43,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:03:43,106 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:03:43,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:03:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:03:43,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:03:43,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:03:43,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2022-11-20 18:03:43,332 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2022-11-20 18:03:43,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 18:03:43,335 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:03:43,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:03:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:03:43,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:03:43,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:03:43,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2022-11-20 18:03:43,721 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-11-20 18:03:43,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 18:03:43,722 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:03:43,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:03:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:03:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:03:45,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:03:45,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2022-11-20 18:03:45,975 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-20 18:03:45,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 18:03:45,976 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:03:45,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:03:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:03:46,118 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:03:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:03:46,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 32 transitions. [2022-11-20 18:03:46,376 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2022-11-20 18:03:46,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 18:03:46,377 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:03:46,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:03:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:03:46,398 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:03:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:03:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:03:46,450 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:03:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:03:46,475 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2022-11-20 18:03:46,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:03:46 ImpRootNode [2022-11-20 18:03:46,504 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:03:46,505 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:03:46,505 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:03:46,505 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:03:46,506 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:03:42" (3/4) ... [2022-11-20 18:03:46,508 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 18:03:46,545 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:03:46,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:03:46,547 INFO L158 Benchmark]: Toolchain (without parser) took 5346.98ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 104.0MB in the beginning and 132.1MB in the end (delta: -28.1MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2022-11-20 18:03:46,563 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory was 67.4MB in the beginning and 67.3MB in the end (delta: 13.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:03:46,563 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.17ms. Allocated memory is still 151.0MB. Free memory was 104.0MB in the beginning and 88.1MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 18:03:46,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.63ms. Allocated memory is still 151.0MB. Free memory was 88.1MB in the beginning and 86.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:03:46,565 INFO L158 Benchmark]: Boogie Preprocessor took 37.09ms. Allocated memory is still 151.0MB. Free memory was 86.4MB in the beginning and 85.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:03:46,565 INFO L158 Benchmark]: RCFGBuilder took 423.63ms. Allocated memory is still 151.0MB. Free memory was 84.7MB in the beginning and 72.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 18:03:46,566 INFO L158 Benchmark]: CodeCheck took 4297.19ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 72.1MB in the beginning and 135.1MB in the end (delta: -63.0MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-11-20 18:03:46,566 INFO L158 Benchmark]: Witness Printer took 41.09ms. Allocated memory is still 220.2MB. Free memory was 135.1MB in the beginning and 132.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:03:46,570 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, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 121 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 375 IncrementalHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 121 mSolverCounterUnsat, 54 mSDtfsCounter, 375 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 401 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1538 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 387 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 0/13 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: 526]: integer overflow possible integer overflow possible We found a FailurePath: [L513] int i, j; [L514] int length = __VERIFIER_nondet_int(); [L515] COND FALSE !(length < 1 || length >= 2147483647 / sizeof(int)) [L516] int *arr = __builtin_alloca (length*sizeof(int)); VAL [__builtin_alloca (length*sizeof(int))={2:0}, arr={2:0}, length=2] [L517] COND FALSE !(!arr) [L518] int *a = arr; [L520] int k = 0; VAL [__builtin_alloca (length*sizeof(int))={2:0}, a={2:0}, arr={2:0}, k=0, length=2] [L520] COND TRUE k < length [L522] arr[k] = __VERIFIER_nondet_int() [L520] k++ VAL [__builtin_alloca (length*sizeof(int))={2:0}, a={2:0}, arr={2:0}, k=1, length=2] [L520] COND TRUE k < length [L522] arr[k] = __VERIFIER_nondet_int() [L520] k++ VAL [__builtin_alloca (length*sizeof(int))={2:0}, a={2:0}, arr={2:0}, k=2, length=2] [L520] COND FALSE !(k < length) VAL [__builtin_alloca (length*sizeof(int))={2:0}, a={2:0}, arr={2:0}, k=2, length=2] [L525] EXPR \read(*a) [L525] EXPR arr + length - 1 VAL [\read(*a)=2147483646, __builtin_alloca (length*sizeof(int))={2:0}, a={2:0}, arr={2:0}, arr + length - 1=2147483647, k=2, length=2] [L525] COND TRUE *a != *(arr + length - 1) [L526] EXPR \read(*a) [L526] EXPR arr + length - 1 VAL [\read(*a)=2147483646, __builtin_alloca (length*sizeof(int))={2:0}, a={2:0}, arr={2:0}, arr + length - 1=2147483647, k=2, length=2] [L526] *a += *(arr + length - 1) VAL [\read(*a)=2147483646, __builtin_alloca (length*sizeof(int))={2:0}, a={2:0}, arr={2:0}, arr + length - 1=2147483647, k=2, length=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory was 67.4MB in the beginning and 67.3MB in the end (delta: 13.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.17ms. Allocated memory is still 151.0MB. Free memory was 104.0MB in the beginning and 88.1MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.63ms. Allocated memory is still 151.0MB. Free memory was 88.1MB in the beginning and 86.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.09ms. Allocated memory is still 151.0MB. Free memory was 86.4MB in the beginning and 85.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 423.63ms. Allocated memory is still 151.0MB. Free memory was 84.7MB in the beginning and 72.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 4297.19ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 72.1MB in the beginning and 135.1MB in the end (delta: -63.0MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Witness Printer took 41.09ms. Allocated memory is still 220.2MB. Free memory was 135.1MB in the beginning and 132.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 18:03:46,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb9f320-b3f3-47c3-afd4-44accb4a529c/bin/ukojak-pZX7IvK2PQ/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(OVERFLOW)