./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg --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 eaf576a220299294776f1e95da9d54aa2aa040b13b7e3f77830ae2c7a6a96afd --- 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-b5237d8 [2022-11-21 22:00:03,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 22:00:03,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 22:00:03,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 22:00:03,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 22:00:03,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 22:00:03,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 22:00:03,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 22:00:03,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 22:00:03,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 22:00:03,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 22:00:03,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 22:00:03,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 22:00:03,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 22:00:03,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 22:00:03,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 22:00:03,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 22:00:03,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 22:00:03,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 22:00:03,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 22:00:03,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 22:00:03,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 22:00:03,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 22:00:03,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 22:00:03,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 22:00:03,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 22:00:03,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 22:00:03,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 22:00:03,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 22:00:03,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 22:00:03,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 22:00:03,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 22:00:03,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 22:00:03,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 22:00:03,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 22:00:03,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 22:00:03,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 22:00:03,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 22:00:03,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 22:00:03,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 22:00:03,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 22:00:03,432 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 22:00:03,452 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 22:00:03,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 22:00:03,453 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 22:00:03,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 22:00:03,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 22:00:03,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 22:00:03,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 22:00:03,455 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 22:00:03,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 22:00:03,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 22:00:03,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 22:00:03,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 22:00:03,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 22:00:03,457 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 22:00:03,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 22:00:03,457 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 22:00:03,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 22:00:03,458 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 22:00:03,458 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 22:00:03,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 22:00:03,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:00:03,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 22:00:03,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 22:00:03,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 22:00:03,460 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 22:00:03,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 22:00:03,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 22:00:03,460 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_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eaf576a220299294776f1e95da9d54aa2aa040b13b7e3f77830ae2c7a6a96afd [2022-11-21 22:00:03,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 22:00:03,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 22:00:03,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 22:00:03,803 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 22:00:03,803 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 22:00:03,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_good.i [2022-11-21 22:00:06,792 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 22:00:07,156 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 22:00:07,160 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_good.i [2022-11-21 22:00:07,193 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/data/936c37f6b/3c098f6a60154b3494ad03c931b5a0d8/FLAG2e2a3bb5a [2022-11-21 22:00:07,209 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/data/936c37f6b/3c098f6a60154b3494ad03c931b5a0d8 [2022-11-21 22:00:07,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 22:00:07,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 22:00:07,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 22:00:07,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 22:00:07,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 22:00:07,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:00:07" (1/1) ... [2022-11-21 22:00:07,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e8ba39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:00:07, skipping insertion in model container [2022-11-21 22:00:07,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:00:07" (1/1) ... [2022-11-21 22:00:07,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 22:00:07,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 22:00:07,806 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 22:00:08,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:00:08,278 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 22:00:08,296 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 22:00:08,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:00:08,503 INFO L208 MainTranslator]: Completed translation [2022-11-21 22:00:08,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:00:08 WrapperNode [2022-11-21 22:00:08,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 22:00:08,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 22:00:08,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 22:00:08,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 22:00:08,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:00:08" (1/1) ... [2022-11-21 22:00:08,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:00:08" (1/1) ... [2022-11-21 22:00:08,558 INFO L138 Inliner]: procedures = 505, calls = 71, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 78 [2022-11-21 22:00:08,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 22:00:08,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 22:00:08,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 22:00:08,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 22:00:08,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:00:08" (1/1) ... [2022-11-21 22:00:08,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:00:08" (1/1) ... [2022-11-21 22:00:08,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:00:08" (1/1) ... [2022-11-21 22:00:08,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:00:08" (1/1) ... [2022-11-21 22:00:08,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:00:08" (1/1) ... [2022-11-21 22:00:08,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:00:08" (1/1) ... [2022-11-21 22:00:08,583 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:00:08" (1/1) ... [2022-11-21 22:00:08,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:00:08" (1/1) ... [2022-11-21 22:00:08,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 22:00:08,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 22:00:08,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 22:00:08,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 22:00:08,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:00:08" (1/1) ... [2022-11-21 22:00:08,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:00:08,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/z3 [2022-11-21 22:00:08,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 22:00:08,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 22:00:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-21 22:00:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-21 22:00:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 22:00:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 22:00:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 22:00:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 22:00:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 22:00:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 22:00:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-21 22:00:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-21 22:00:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 22:00:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 22:00:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 22:00:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 22:00:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 22:00:08,941 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 22:00:08,943 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 22:00:09,169 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 22:00:09,210 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 22:00:09,210 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 22:00:09,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:00:09 BoogieIcfgContainer [2022-11-21 22:00:09,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 22:00:09,214 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 22:00:09,214 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 22:00:09,224 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 22:00:09,224 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:00:09" (1/1) ... [2022-11-21 22:00:09,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 22:00:09,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:09,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 35 states and 42 transitions. [2022-11-21 22:00:09,286 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-11-21 22:00:09,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 22:00:09,291 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:00:09,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:00:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:00:09,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:00:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:09,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 38 states and 47 transitions. [2022-11-21 22:00:09,810 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2022-11-21 22:00:09,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 22:00:09,811 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:00:09,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:00:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:00:09,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:00:10,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:10,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 42 states and 53 transitions. [2022-11-21 22:00:10,236 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2022-11-21 22:00:10,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 22:00:10,237 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:00:10,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:00:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:00:10,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:00:10,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:10,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 44 states and 56 transitions. [2022-11-21 22:00:10,807 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2022-11-21 22:00:10,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-21 22:00:10,809 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:00:10,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:00:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:00:11,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:00:11,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:11,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 49 states and 64 transitions. [2022-11-21 22:00:11,508 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2022-11-21 22:00:11,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 22:00:11,510 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:00:11,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:00:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:00:11,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:00:11,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:11,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 51 states and 66 transitions. [2022-11-21 22:00:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2022-11-21 22:00:11,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 22:00:11,797 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:00:11,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:00:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:00:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:00:12,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:12,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 55 states and 73 transitions. [2022-11-21 22:00:12,874 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 73 transitions. [2022-11-21 22:00:12,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 22:00:12,875 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:00:12,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:00:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:00:12,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 22:00:13,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:13,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 54 states and 72 transitions. [2022-11-21 22:00:13,159 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 72 transitions. [2022-11-21 22:00:13,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 22:00:13,160 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:00:13,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:00:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:00:13,485 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 22:00:13,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:13,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 45 states and 60 transitions. [2022-11-21 22:00:13,963 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2022-11-21 22:00:13,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-21 22:00:13,964 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:00:13,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:00:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:00:14,034 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 22:00:14,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 40 states and 52 transitions. [2022-11-21 22:00:14,385 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2022-11-21 22:00:14,386 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 22:00:14,388 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2022-11-21 22:00:14,399 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-21 22:00:14,496 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:00:14,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 10:00:14 ImpRootNode [2022-11-21 22:00:14,503 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 22:00:14,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 22:00:14,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 22:00:14,504 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 22:00:14,504 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:00:09" (3/4) ... [2022-11-21 22:00:14,508 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 22:00:14,516 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-21 22:00:14,517 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-21 22:00:14,517 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~int~TO~VOID [2022-11-21 22:00:14,529 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-21 22:00:14,529 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-21 22:00:14,530 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-21 22:00:14,530 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 22:00:14,584 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 22:00:14,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 22:00:14,585 INFO L158 Benchmark]: Toolchain (without parser) took 7369.46ms. Allocated memory was 188.7MB in the beginning and 230.7MB in the end (delta: 41.9MB). Free memory was 152.5MB in the beginning and 167.3MB in the end (delta: -14.8MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-11-21 22:00:14,586 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 125.8MB. Free memory is still 94.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:00:14,586 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1287.49ms. Allocated memory is still 188.7MB. Free memory was 152.5MB in the beginning and 102.8MB in the end (delta: 49.7MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-21 22:00:14,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.88ms. Allocated memory is still 188.7MB. Free memory was 102.8MB in the beginning and 99.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 22:00:14,587 INFO L158 Benchmark]: Boogie Preprocessor took 26.93ms. Allocated memory is still 188.7MB. Free memory was 99.6MB in the beginning and 98.6MB in the end (delta: 979.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:00:14,588 INFO L158 Benchmark]: RCFGBuilder took 625.99ms. Allocated memory is still 188.7MB. Free memory was 98.6MB in the beginning and 81.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 22:00:14,588 INFO L158 Benchmark]: CodeCheck took 5288.71ms. Allocated memory was 188.7MB in the beginning and 230.7MB in the end (delta: 41.9MB). Free memory was 81.8MB in the beginning and 170.5MB in the end (delta: -88.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:00:14,589 INFO L158 Benchmark]: Witness Printer took 81.00ms. Allocated memory is still 230.7MB. Free memory was 170.5MB in the beginning and 167.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 22:00:14,591 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 4 procedures, 35 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 519 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 351 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 302 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 819 IncrementalHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 302 mSolverCounterUnsat, 291 mSDtfsCounter, 819 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1479 GetRequests, 1378 SyntacticMatches, 9 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2607 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 169 ConstructedInterpolants, 0 QuantifiedInterpolants, 341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 22/22 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 - PositiveResult [Line: 1601]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1601]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1586]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 125.8MB. Free memory is still 94.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1287.49ms. Allocated memory is still 188.7MB. Free memory was 152.5MB in the beginning and 102.8MB in the end (delta: 49.7MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.88ms. Allocated memory is still 188.7MB. Free memory was 102.8MB in the beginning and 99.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.93ms. Allocated memory is still 188.7MB. Free memory was 99.6MB in the beginning and 98.6MB in the end (delta: 979.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 625.99ms. Allocated memory is still 188.7MB. Free memory was 98.6MB in the beginning and 81.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 5288.71ms. Allocated memory was 188.7MB in the beginning and 230.7MB in the end (delta: 41.9MB). Free memory was 81.8MB in the beginning and 170.5MB in the end (delta: -88.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 81.00ms. Allocated memory is still 230.7MB. Free memory was 170.5MB in the beginning and 167.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-21 22:00:14,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9ba182-91ce-4fbe-87ab-11164ddfeebf/bin/ukojak-jW3SillKbg/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 Result: TRUE