./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b2172eaa89638d5072f6ae115b1fe3735e38828fb9cfffa3662e940222ddfc9e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 17:54:03,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:54:03,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:54:03,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:54:03,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:54:03,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:54:03,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:54:03,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:54:03,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:54:03,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:54:03,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:54:03,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:54:03,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:54:03,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:54:03,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:54:03,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:54:03,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:54:03,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:54:03,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:54:03,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:54:03,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:54:03,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:54:03,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:54:03,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:54:03,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:54:03,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:54:03,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:54:03,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:54:03,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:54:03,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:54:03,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:54:03,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:54:03,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:54:03,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:54:03,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:54:03,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:54:03,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:54:03,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:54:03,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:54:03,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:54:03,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:54:03,215 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:54:03,248 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:54:03,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:54:03,255 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:54:03,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:54:03,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:54:03,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:54:03,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:54:03,257 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:54:03,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:54:03,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:54:03,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:54:03,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:54:03,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:54:03,259 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:54:03,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:54:03,260 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:54:03,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:54:03,260 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:54:03,261 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:54:03,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:54:03,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:54:03,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:54:03,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:54:03,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:54:03,262 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:54:03,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:54:03,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:54:03,263 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_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2172eaa89638d5072f6ae115b1fe3735e38828fb9cfffa3662e940222ddfc9e [2022-11-20 17:54:03,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:54:03,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:54:03,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:54:03,577 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:54:03,578 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:54:03,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_good.i [2022-11-20 17:54:06,603 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:54:07,084 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:54:07,085 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_good.i [2022-11-20 17:54:07,107 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/data/fdaf1898f/123167b3155541afb22a082b769b8a05/FLAG3cc083136 [2022-11-20 17:54:07,123 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/data/fdaf1898f/123167b3155541afb22a082b769b8a05 [2022-11-20 17:54:07,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:54:07,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:54:07,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:54:07,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:54:07,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:54:07,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:54:07" (1/1) ... [2022-11-20 17:54:07,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@576d8215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:07, skipping insertion in model container [2022-11-20 17:54:07,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:54:07" (1/1) ... [2022-11-20 17:54:07,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:54:07,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:54:07,589 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 17:54:08,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:54:08,179 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:54:08,199 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 17:54:08,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:54:08,422 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:54:08,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:08 WrapperNode [2022-11-20 17:54:08,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:54:08,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:54:08,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:54:08,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:54:08,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:08" (1/1) ... [2022-11-20 17:54:08,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:08" (1/1) ... [2022-11-20 17:54:08,485 INFO L138 Inliner]: procedures = 504, calls = 69, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 71 [2022-11-20 17:54:08,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:54:08,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:54:08,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:54:08,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:54:08,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:08" (1/1) ... [2022-11-20 17:54:08,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:08" (1/1) ... [2022-11-20 17:54:08,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:08" (1/1) ... [2022-11-20 17:54:08,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:08" (1/1) ... [2022-11-20 17:54:08,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:08" (1/1) ... [2022-11-20 17:54:08,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:08" (1/1) ... [2022-11-20 17:54:08,509 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:08" (1/1) ... [2022-11-20 17:54:08,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:08" (1/1) ... [2022-11-20 17:54:08,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:54:08,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:54:08,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:54:08,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:54:08,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:08" (1/1) ... [2022-11-20 17:54:08,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:54:08,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:54:08,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:54:08,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:54:08,610 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-20 17:54:08,611 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-20 17:54:08,611 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 17:54:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 17:54:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 17:54:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:54:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 17:54:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 17:54:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:54:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:54:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:54:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 17:54:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 17:54:08,797 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:54:08,800 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:54:09,029 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:54:09,083 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:54:09,083 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 17:54:09,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:54:09 BoogieIcfgContainer [2022-11-20 17:54:09,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:54:09,087 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:54:09,087 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:54:09,104 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:54:09,104 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:54:09" (1/1) ... [2022-11-20 17:54:09,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:54:09,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:54:09,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2022-11-20 17:54:09,183 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-11-20 17:54:09,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 17:54:09,188 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:54:09,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:54:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:54:09,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:54:09,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:54:09,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2022-11-20 17:54:09,611 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-20 17:54:09,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 17:54:09,611 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:54:09,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:54:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:54:09,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:54:09,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:54:09,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2022-11-20 17:54:09,893 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-11-20 17:54:09,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 17:54:09,893 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:54:09,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:54:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:54:10,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:54:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:54:10,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2022-11-20 17:54:10,293 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-11-20 17:54:10,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 17:54:10,295 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:54:10,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:54:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:54:10,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:54:10,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:54:10,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2022-11-20 17:54:10,602 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-11-20 17:54:10,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 17:54:10,604 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:54:10,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:54:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:54:10,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 17:54:10,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:54:10,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 28 transitions. [2022-11-20 17:54:10,882 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-11-20 17:54:10,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 17:54:10,883 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-11-20 17:54:10,891 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-20 17:54:10,936 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:54:10,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:54:10 ImpRootNode [2022-11-20 17:54:10,942 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:54:10,943 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:54:10,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:54:10,945 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:54:10,945 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:54:09" (3/4) ... [2022-11-20 17:54:10,955 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 17:54:10,963 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-20 17:54:10,964 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-20 17:54:10,973 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-20 17:54:10,974 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 17:54:10,974 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 17:54:10,974 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:54:11,041 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:54:11,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:54:11,049 INFO L158 Benchmark]: Toolchain (without parser) took 3921.72ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 84.8MB in the beginning and 103.9MB in the end (delta: -19.1MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2022-11-20 17:54:11,050 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 117.4MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:54:11,050 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1295.03ms. Allocated memory is still 117.4MB. Free memory was 84.3MB in the beginning and 69.6MB in the end (delta: 14.7MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2022-11-20 17:54:11,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.19ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 66.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 17:54:11,052 INFO L158 Benchmark]: Boogie Preprocessor took 27.25ms. Allocated memory is still 117.4MB. Free memory was 66.3MB in the beginning and 64.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:54:11,052 INFO L158 Benchmark]: RCFGBuilder took 572.22ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 49.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 17:54:11,053 INFO L158 Benchmark]: CodeCheck took 1855.31ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 49.5MB in the beginning and 107.0MB in the end (delta: -57.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:54:11,053 INFO L158 Benchmark]: Witness Printer took 104.80ms. Allocated memory is still 159.4MB. Free memory was 107.0MB in the beginning and 103.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 17:54:11,062 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: 1.7s, 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, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 133 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 67 mSDtfsCounter, 133 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 419 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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: 1590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1599]: 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: 1584]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 117.4MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1295.03ms. Allocated memory is still 117.4MB. Free memory was 84.3MB in the beginning and 69.6MB in the end (delta: 14.7MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.19ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 66.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.25ms. Allocated memory is still 117.4MB. Free memory was 66.3MB in the beginning and 64.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 572.22ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 49.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 1855.31ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 49.5MB in the beginning and 107.0MB in the end (delta: -57.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 104.80ms. Allocated memory is still 159.4MB. Free memory was 107.0MB in the beginning and 103.9MB 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! [2022-11-20 17:54:11,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fba4a0f0-6008-432e-8e7d-332979da0996/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE