./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/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_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/bin/ukojak-rkRKPMF4O4 --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 64bit --witnessprinter.graph.data.programhash 5744db56abf24224cf1693e3e46d5bede5dd8c74199d1ade21d96d1156922237 --- 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 [2022-12-15 03:28:33,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 03:28:33,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 03:28:33,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 03:28:33,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 03:28:33,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 03:28:33,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 03:28:33,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 03:28:33,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 03:28:33,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 03:28:33,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 03:28:33,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 03:28:33,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 03:28:33,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 03:28:33,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 03:28:33,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 03:28:33,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 03:28:33,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 03:28:33,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 03:28:33,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 03:28:33,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 03:28:33,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 03:28:33,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 03:28:33,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 03:28:33,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 03:28:33,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 03:28:33,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 03:28:33,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 03:28:33,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 03:28:33,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 03:28:33,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 03:28:33,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 03:28:33,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 03:28:33,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 03:28:33,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 03:28:33,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 03:28:33,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 03:28:33,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 03:28:33,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 03:28:33,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 03:28:33,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 03:28:33,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-15 03:28:33,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 03:28:33,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 03:28:33,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 03:28:33,323 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 03:28:33,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 03:28:33,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 03:28:33,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 03:28:33,324 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-15 03:28:33,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 03:28:33,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 03:28:33,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 03:28:33,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 03:28:33,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 03:28:33,325 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-15 03:28:33,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 03:28:33,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 03:28:33,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 03:28:33,325 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 03:28:33,325 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 03:28:33,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 03:28:33,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 03:28:33,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 03:28:33,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 03:28:33,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 03:28:33,326 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 03:28:33,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 03:28:33,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 03:28:33,327 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_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5744db56abf24224cf1693e3e46d5bede5dd8c74199d1ade21d96d1156922237 [2022-12-15 03:28:33,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 03:28:33,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 03:28:33,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 03:28:33,510 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 03:28:33,510 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 03:28:33,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i [2022-12-15 03:28:36,166 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 03:28:36,327 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 03:28:36,327 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i [2022-12-15 03:28:36,333 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/bin/ukojak-rkRKPMF4O4/data/ae01e30e9/9b5a895b731b41aa83f0c47195a11515/FLAG3808a774d [2022-12-15 03:28:36,343 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/bin/ukojak-rkRKPMF4O4/data/ae01e30e9/9b5a895b731b41aa83f0c47195a11515 [2022-12-15 03:28:36,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 03:28:36,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 03:28:36,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 03:28:36,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 03:28:36,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 03:28:36,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 03:28:36" (1/1) ... [2022-12-15 03:28:36,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7787be1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:28:36, skipping insertion in model container [2022-12-15 03:28:36,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 03:28:36" (1/1) ... [2022-12-15 03:28:36,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 03:28:36,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 03:28:36,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 03:28:36,556 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 03:28:36,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 03:28:36,596 INFO L208 MainTranslator]: Completed translation [2022-12-15 03:28:36,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:28:36 WrapperNode [2022-12-15 03:28:36,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 03:28:36,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 03:28:36,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 03:28:36,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 03:28:36,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:28:36" (1/1) ... [2022-12-15 03:28:36,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:28:36" (1/1) ... [2022-12-15 03:28:36,626 INFO L138 Inliner]: procedures = 110, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2022-12-15 03:28:36,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 03:28:36,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 03:28:36,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 03:28:36,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 03:28:36,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:28:36" (1/1) ... [2022-12-15 03:28:36,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:28:36" (1/1) ... [2022-12-15 03:28:36,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:28:36" (1/1) ... [2022-12-15 03:28:36,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:28:36" (1/1) ... [2022-12-15 03:28:36,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:28:36" (1/1) ... [2022-12-15 03:28:36,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:28:36" (1/1) ... [2022-12-15 03:28:36,642 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:28:36" (1/1) ... [2022-12-15 03:28:36,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:28:36" (1/1) ... [2022-12-15 03:28:36,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 03:28:36,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 03:28:36,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 03:28:36,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 03:28:36,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:28:36" (1/1) ... [2022-12-15 03:28:36,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 03:28:36,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 03:28:36,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 03:28:36,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 03:28:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-15 03:28:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-15 03:28:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-15 03:28:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-15 03:28:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 03:28:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 03:28:36,784 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 03:28:36,786 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 03:28:36,933 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 03:28:36,973 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 03:28:36,973 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-15 03:28:36,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 03:28:36 BoogieIcfgContainer [2022-12-15 03:28:36,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 03:28:36,976 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 03:28:36,976 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 03:28:36,984 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 03:28:36,984 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 03:28:36" (1/1) ... [2022-12-15 03:28:36,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 03:28:37,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:28:37,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2022-12-15 03:28:37,035 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-12-15 03:28:37,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-15 03:28:37,037 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:28:37,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:28:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:28:37,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-15 03:28:37,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 03:28:37,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:28:37,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:28:37,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2022-12-15 03:28:37,233 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-12-15 03:28:37,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-15 03:28:37,234 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:28:37,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:28:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 03:28:37,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-15 03:28:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 03:28:37,285 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-12-15 03:28:37,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 03:28:37 ImpRootNode [2022-12-15 03:28:37,301 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 03:28:37,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 03:28:37,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 03:28:37,302 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 03:28:37,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 03:28:36" (3/4) ... [2022-12-15 03:28:37,304 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-15 03:28:37,330 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 03:28:37,330 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 03:28:37,331 INFO L158 Benchmark]: Toolchain (without parser) took 983.85ms. Allocated memory was 119.5MB in the beginning and 165.7MB in the end (delta: 46.1MB). Free memory was 87.7MB in the beginning and 126.8MB in the end (delta: -39.0MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2022-12-15 03:28:37,331 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 119.5MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 03:28:37,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.20ms. Allocated memory is still 119.5MB. Free memory was 87.7MB in the beginning and 72.2MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-15 03:28:37,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.46ms. Allocated memory is still 119.5MB. Free memory was 72.2MB in the beginning and 70.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 03:28:37,332 INFO L158 Benchmark]: Boogie Preprocessor took 17.37ms. Allocated memory is still 119.5MB. Free memory was 70.1MB in the beginning and 69.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 03:28:37,332 INFO L158 Benchmark]: RCFGBuilder took 330.36ms. Allocated memory is still 119.5MB. Free memory was 69.0MB in the beginning and 54.0MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-15 03:28:37,333 INFO L158 Benchmark]: CodeCheck took 325.43ms. Allocated memory was 119.5MB in the beginning and 165.7MB in the end (delta: 46.1MB). Free memory was 54.0MB in the beginning and 128.9MB in the end (delta: -74.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 03:28:37,333 INFO L158 Benchmark]: Witness Printer took 28.01ms. Allocated memory is still 165.7MB. Free memory was 128.9MB in the beginning and 126.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 03:28:37,336 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, 23 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 554]: integer overflow possible integer overflow possible We found a FailurePath: [L548] int i, j; [L549] int length = __VERIFIER_nondet_int(); [L550] COND FALSE !(length < 1) [L551] int fac = __VERIFIER_nondet_int(); [L552] COND FALSE !(fac < 1) [L553] int *arr = __builtin_alloca (length*sizeof(int)); VAL [__builtin_alloca (length*sizeof(int))={2:0}, arr={2:0}, fac=2, length=2147483647] [L554] fac*length VAL [__builtin_alloca (length*sizeof(int))={2:0}, arr={2:0}, fac=2, length=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 119.5MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.20ms. Allocated memory is still 119.5MB. Free memory was 87.7MB in the beginning and 72.2MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.46ms. Allocated memory is still 119.5MB. Free memory was 72.2MB in the beginning and 70.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.37ms. Allocated memory is still 119.5MB. Free memory was 70.1MB in the beginning and 69.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 330.36ms. Allocated memory is still 119.5MB. Free memory was 69.0MB in the beginning and 54.0MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 325.43ms. Allocated memory was 119.5MB in the beginning and 165.7MB in the end (delta: 46.1MB). Free memory was 54.0MB in the beginning and 128.9MB in the end (delta: -74.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 28.01ms. Allocated memory is still 165.7MB. Free memory was 128.9MB in the beginning and 126.8MB 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! [2022-12-15 03:28:37,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b959a7e5-a53a-4c5f-8c7a-b596e9bed49a/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(OVERFLOW)