./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_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_109e2fe1-9cc5-4c89-ac68-489f0052336f/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e2fe1-9cc5-4c89-ac68-489f0052336f/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_109e2fe1-9cc5-4c89-ac68-489f0052336f/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e2fe1-9cc5-4c89-ac68-489f0052336f/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e2fe1-9cc5-4c89-ac68-489f0052336f/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_109e2fe1-9cc5-4c89-ac68-489f0052336f/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 8010433a2885bc09df7e6beec8fa2694aed6b40a08013ee4556c296a9d8c249c --- 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 22:18:24,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 22:18:24,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 22:18:24,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 22:18:24,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 22:18:24,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 22:18:24,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 22:18:24,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 22:18:24,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 22:18:24,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 22:18:24,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 22:18:24,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 22:18:24,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 22:18:24,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 22:18:24,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 22:18:24,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 22:18:24,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 22:18:24,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 22:18:24,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 22:18:24,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 22:18:24,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 22:18:24,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 22:18:24,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 22:18:24,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 22:18:24,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 22:18:24,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 22:18:24,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 22:18:24,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 22:18:24,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 22:18:24,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 22:18:24,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 22:18:24,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 22:18:24,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 22:18:24,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 22:18:24,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 22:18:24,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 22:18:24,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 22:18:24,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 22:18:24,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 22:18:24,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 22:18:24,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 22:18:24,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e2fe1-9cc5-4c89-ac68-489f0052336f/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 22:18:24,215 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 22:18:24,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 22:18:24,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 22:18:24,216 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 22:18:24,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 22:18:24,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 22:18:24,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 22:18:24,217 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 22:18:24,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 22:18:24,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 22:18:24,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 22:18:24,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 22:18:24,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 22:18:24,219 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 22:18:24,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 22:18:24,220 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 22:18:24,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 22:18:24,220 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 22:18:24,221 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 22:18:24,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 22:18:24,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:18:24,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 22:18:24,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 22:18:24,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 22:18:24,222 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 22:18:24,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 22:18:24,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 22:18:24,223 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_109e2fe1-9cc5-4c89-ac68-489f0052336f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e2fe1-9cc5-4c89-ac68-489f0052336f/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8010433a2885bc09df7e6beec8fa2694aed6b40a08013ee4556c296a9d8c249c [2022-11-21 22:18:24,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 22:18:24,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 22:18:24,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 22:18:24,521 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 22:18:24,521 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 22:18:24,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e2fe1-9cc5-4c89-ac68-489f0052336f/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_good.i [2022-11-21 22:18:27,537 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 22:18:27,983 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 22:18:27,983 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e2fe1-9cc5-4c89-ac68-489f0052336f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_good.i [2022-11-21 22:18:28,013 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e2fe1-9cc5-4c89-ac68-489f0052336f/bin/ukojak-jW3SillKbg/data/eaeb09528/93f192d3397a4d5b9c247ed68eede3f0/FLAG980d25f07 [2022-11-21 22:18:28,031 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e2fe1-9cc5-4c89-ac68-489f0052336f/bin/ukojak-jW3SillKbg/data/eaeb09528/93f192d3397a4d5b9c247ed68eede3f0 [2022-11-21 22:18:28,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 22:18:28,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 22:18:28,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 22:18:28,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 22:18:28,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 22:18:28,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:28" (1/1) ... [2022-11-21 22:18:28,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76dd8d83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:28, skipping insertion in model container [2022-11-21 22:18:28,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:28" (1/1) ... [2022-11-21 22:18:28,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 22:18:28,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 22:18:28,548 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 22:18:29,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:18:29,214 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 22:18:29,250 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 22:18:29,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:18:29,452 INFO L208 MainTranslator]: Completed translation [2022-11-21 22:18:29,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:29 WrapperNode [2022-11-21 22:18:29,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 22:18:29,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 22:18:29,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 22:18:29,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 22:18:29,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:29" (1/1) ... [2022-11-21 22:18:29,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:29" (1/1) ... [2022-11-21 22:18:29,540 INFO L138 Inliner]: procedures = 504, calls = 69, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 71 [2022-11-21 22:18:29,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 22:18:29,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 22:18:29,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 22:18:29,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 22:18:29,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:29" (1/1) ... [2022-11-21 22:18:29,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:29" (1/1) ... [2022-11-21 22:18:29,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:29" (1/1) ... [2022-11-21 22:18:29,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:29" (1/1) ... [2022-11-21 22:18:29,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:29" (1/1) ... [2022-11-21 22:18:29,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:29" (1/1) ... [2022-11-21 22:18:29,576 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:29" (1/1) ... [2022-11-21 22:18:29,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:29" (1/1) ... [2022-11-21 22:18:29,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 22:18:29,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 22:18:29,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 22:18:29,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 22:18:29,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:29" (1/1) ... [2022-11-21 22:18:29,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:18:29,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e2fe1-9cc5-4c89-ac68-489f0052336f/bin/ukojak-jW3SillKbg/z3 [2022-11-21 22:18:29,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e2fe1-9cc5-4c89-ac68-489f0052336f/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 22:18:29,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e2fe1-9cc5-4c89-ac68-489f0052336f/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 22:18:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-21 22:18:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-21 22:18:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 22:18:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 22:18:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 22:18:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 22:18:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 22:18:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 22:18:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 22:18:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 22:18:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 22:18:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 22:18:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 22:18:29,924 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 22:18:29,926 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 22:18:30,112 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 22:18:30,140 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 22:18:30,140 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 22:18:30,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:30 BoogieIcfgContainer [2022-11-21 22:18:30,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 22:18:30,144 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 22:18:30,144 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 22:18:30,154 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 22:18:30,154 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:30" (1/1) ... [2022-11-21 22:18:30,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 22:18:30,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:18:30,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2022-11-21 22:18:30,222 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-11-21 22:18:30,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 22:18:30,226 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:18:30,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:18:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:18:30,642 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 22:18:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:18:30,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2022-11-21 22:18:30,708 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-11-21 22:18:30,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 22:18:30,709 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:18:30,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:18:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:18:30,816 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 22:18:30,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:18:30,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2022-11-21 22:18:30,896 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-11-21 22:18:30,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 22:18:30,897 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:18:30,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:18:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:18:31,060 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 22:18:31,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:18:31,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 30 transitions. [2022-11-21 22:18:31,114 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-11-21 22:18:31,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 22:18:31,114 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:18:31,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:18:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:18:31,194 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 22:18:31,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:18:31,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 29 transitions. [2022-11-21 22:18:31,228 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-11-21 22:18:31,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 22:18:31,230 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:18:31,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:18:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:18:31,332 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 22:18:31,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:18:31,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 28 transitions. [2022-11-21 22:18:31,414 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-11-21 22:18:31,416 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 22:18:31,417 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-11-21 22:18:31,426 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-21 22:18:31,484 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:18:31,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 10:18:31 ImpRootNode [2022-11-21 22:18:31,489 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 22:18:31,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 22:18:31,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 22:18:31,490 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 22:18:31,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:30" (3/4) ... [2022-11-21 22:18:31,494 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 22:18:31,500 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-21 22:18:31,501 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-21 22:18:31,505 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-21 22:18:31,505 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-21 22:18:31,505 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 22:18:31,506 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 22:18:31,563 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e2fe1-9cc5-4c89-ac68-489f0052336f/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 22:18:31,563 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 22:18:31,564 INFO L158 Benchmark]: Toolchain (without parser) took 3524.91ms. Allocated memory is still 172.0MB. Free memory was 134.4MB in the beginning and 139.3MB in the end (delta: -4.9MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. [2022-11-21 22:18:31,564 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 132.1MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:18:31,565 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1414.13ms. Allocated memory is still 172.0MB. Free memory was 134.4MB in the beginning and 74.6MB in the end (delta: 59.7MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-21 22:18:31,565 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.19ms. Allocated memory is still 172.0MB. Free memory was 74.6MB in the beginning and 71.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:18:31,566 INFO L158 Benchmark]: Boogie Preprocessor took 38.27ms. Allocated memory is still 172.0MB. Free memory was 71.7MB in the beginning and 69.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:18:31,566 INFO L158 Benchmark]: RCFGBuilder took 562.38ms. Allocated memory is still 172.0MB. Free memory was 69.7MB in the beginning and 134.0MB in the end (delta: -64.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-11-21 22:18:31,567 INFO L158 Benchmark]: CodeCheck took 1345.56ms. Allocated memory is still 172.0MB. Free memory was 134.0MB in the beginning and 60.6MB in the end (delta: 73.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2022-11-21 22:18:31,567 INFO L158 Benchmark]: Witness Printer took 73.21ms. Allocated memory is still 172.0MB. Free memory was 60.6MB in the beginning and 139.3MB in the end (delta: -78.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:18:31,570 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 3 procedures, 27 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 6, 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, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 144 IncrementalHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 69 mSDtfsCounter, 144 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 414 GetRequests, 393 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 91 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 6/6 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: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: 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: 1603]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 132.1MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1414.13ms. Allocated memory is still 172.0MB. Free memory was 134.4MB in the beginning and 74.6MB in the end (delta: 59.7MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.19ms. Allocated memory is still 172.0MB. Free memory was 74.6MB in the beginning and 71.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.27ms. Allocated memory is still 172.0MB. Free memory was 71.7MB in the beginning and 69.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 562.38ms. Allocated memory is still 172.0MB. Free memory was 69.7MB in the beginning and 134.0MB in the end (delta: -64.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * CodeCheck took 1345.56ms. Allocated memory is still 172.0MB. Free memory was 134.0MB in the beginning and 60.6MB in the end (delta: 73.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. * Witness Printer took 73.21ms. Allocated memory is still 172.0MB. Free memory was 60.6MB in the beginning and 139.3MB in the end (delta: -78.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-21 22:18:31,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_109e2fe1-9cc5-4c89-ac68-489f0052336f/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