./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f0a8aca6171005de8b30c69d8a2a2fbe62162fcc900d6c6ab6c84d9ac405645a --- 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-4e7fbc6 [2022-11-23 02:35:31,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:35:31,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:35:31,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:35:31,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:35:31,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:35:31,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:35:31,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:35:31,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:35:31,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:35:31,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:35:31,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:35:31,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:35:31,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:35:31,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:35:31,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:35:31,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:35:31,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:35:31,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:35:31,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:35:31,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:35:31,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:35:31,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:35:31,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:35:31,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:35:31,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:35:31,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:35:31,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:35:31,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:35:31,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:35:31,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:35:31,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:35:31,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:35:31,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:35:31,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:35:31,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:35:31,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:35:31,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:35:31,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:35:31,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:35:31,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:35:31,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 02:35:31,309 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:35:31,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:35:31,316 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:35:31,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:35:31,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:35:31,318 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:35:31,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:35:31,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:35:31,319 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:35:31,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:35:31,321 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:35:31,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:35:31,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:35:31,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:35:31,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:35:31,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:35:31,322 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 02:35:31,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:35:31,323 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:35:31,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:35:31,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:35:31,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:35:31,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:35:31,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:35:31,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:35:31,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:35:31,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:35:31,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:35:31,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:35:31,326 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:35:31,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:35:31,327 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:35:31,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:35:31,328 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0a8aca6171005de8b30c69d8a2a2fbe62162fcc900d6c6ab6c84d9ac405645a [2022-11-23 02:35:31,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:35:31,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:35:31,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:35:31,720 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:35:31,721 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:35:31,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_good.i [2022-11-23 02:35:34,956 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:35:35,405 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:35:35,407 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_good.i [2022-11-23 02:35:35,444 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/data/0ca042332/33eb117fb11b40a59868c4314f80bf31/FLAG15b26ed1f [2022-11-23 02:35:35,467 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/data/0ca042332/33eb117fb11b40a59868c4314f80bf31 [2022-11-23 02:35:35,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:35:35,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:35:35,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:35:35,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:35:35,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:35:35,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:35:35" (1/1) ... [2022-11-23 02:35:35,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a5c9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:35, skipping insertion in model container [2022-11-23 02:35:35,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:35:35" (1/1) ... [2022-11-23 02:35:35,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:35:35,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:35:36,093 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 02:35:36,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:35:36,803 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:35:36,840 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 02:35:36,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:35:37,106 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:35:37,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:37 WrapperNode [2022-11-23 02:35:37,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:35:37,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:35:37,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:35:37,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:35:37,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:37" (1/1) ... [2022-11-23 02:35:37,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:37" (1/1) ... [2022-11-23 02:35:37,168 INFO L138 Inliner]: procedures = 504, calls = 79, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 81 [2022-11-23 02:35:37,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:35:37,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:35:37,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:35:37,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:35:37,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:37" (1/1) ... [2022-11-23 02:35:37,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:37" (1/1) ... [2022-11-23 02:35:37,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:37" (1/1) ... [2022-11-23 02:35:37,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:37" (1/1) ... [2022-11-23 02:35:37,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:37" (1/1) ... [2022-11-23 02:35:37,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:37" (1/1) ... [2022-11-23 02:35:37,222 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:37" (1/1) ... [2022-11-23 02:35:37,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:37" (1/1) ... [2022-11-23 02:35:37,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:35:37,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:35:37,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:35:37,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:35:37,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:37" (1/1) ... [2022-11-23 02:35:37,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:35:37,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:35:37,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:35:37,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:35:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-23 02:35:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-23 02:35:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 02:35:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 02:35:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 02:35:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:35:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 02:35:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 02:35:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:35:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:35:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:35:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:35:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 02:35:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:35:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:35:37,578 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:35:37,596 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:35:37,911 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:35:37,922 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:35:37,922 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:35:37,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:37 BoogieIcfgContainer [2022-11-23 02:35:37,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:35:37,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:35:37,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:35:37,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:35:37,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:35:35" (1/3) ... [2022-11-23 02:35:37,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7912882b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:35:37, skipping insertion in model container [2022-11-23 02:35:37,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:35:37" (2/3) ... [2022-11-23 02:35:37,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7912882b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:35:37, skipping insertion in model container [2022-11-23 02:35:37,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:37" (3/3) ... [2022-11-23 02:35:37,937 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_63_good.i [2022-11-23 02:35:37,960 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:35:37,960 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-23 02:35:38,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:35:38,044 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@15b7d58f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:35:38,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 02:35:38,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 29 states have internal predecessors, (30), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-23 02:35:38,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 02:35:38,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:35:38,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:35:38,060 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 02:35:38,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:35:38,071 INFO L85 PathProgramCache]: Analyzing trace with hash -968710489, now seen corresponding path program 1 times [2022-11-23 02:35:38,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:35:38,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472437006] [2022-11-23 02:35:38,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:35:38,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:35:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:38,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 02:35:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:38,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:35:38,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:35:38,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472437006] [2022-11-23 02:35:38,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472437006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:35:38,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:35:38,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:35:38,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711964880] [2022-11-23 02:35:38,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:35:38,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:35:38,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:35:38,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:35:38,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:35:38,696 INFO L87 Difference]: Start difference. First operand has 36 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 29 states have internal predecessors, (30), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:35:38,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:35:38,738 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2022-11-23 02:35:38,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:35:38,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-11-23 02:35:38,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:35:38,748 INFO L225 Difference]: With dead ends: 36 [2022-11-23 02:35:38,748 INFO L226 Difference]: Without dead ends: 25 [2022-11-23 02:35:38,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:35:38,755 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:35:38,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 75 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:35:38,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-23 02:35:38,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-23 02:35:38,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 02:35:38,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-11-23 02:35:38,797 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 9 [2022-11-23 02:35:38,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:35:38,799 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-11-23 02:35:38,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:35:38,799 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-11-23 02:35:38,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 02:35:38,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:35:38,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:35:38,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:35:38,801 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 02:35:38,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:35:38,802 INFO L85 PathProgramCache]: Analyzing trace with hash 34745961, now seen corresponding path program 1 times [2022-11-23 02:35:38,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:35:38,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612554049] [2022-11-23 02:35:38,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:35:38,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:35:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:38,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 02:35:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:38,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:35:38,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:35:38,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612554049] [2022-11-23 02:35:38,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612554049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:35:38,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:35:38,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:35:38,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724411794] [2022-11-23 02:35:38,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:35:38,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:35:38,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:35:38,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:35:38,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:35:38,940 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:35:38,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:35:38,949 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-11-23 02:35:38,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:35:38,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-23 02:35:38,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:35:38,950 INFO L225 Difference]: With dead ends: 25 [2022-11-23 02:35:38,950 INFO L226 Difference]: Without dead ends: 24 [2022-11-23 02:35:38,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:35:38,952 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:35:38,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 36 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:35:38,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-23 02:35:38,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-23 02:35:38,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 02:35:38,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-23 02:35:38,959 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 10 [2022-11-23 02:35:38,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:35:38,960 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-23 02:35:38,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:35:38,960 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-23 02:35:38,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 02:35:38,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:35:38,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:35:38,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:35:38,962 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 02:35:38,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:35:38,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2011879922, now seen corresponding path program 1 times [2022-11-23 02:35:38,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:35:38,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260745906] [2022-11-23 02:35:38,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:35:38,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:35:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:39,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 02:35:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:39,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-23 02:35:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:35:39,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:35:39,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260745906] [2022-11-23 02:35:39,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260745906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:35:39,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:35:39,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:35:39,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172316670] [2022-11-23 02:35:39,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:35:39,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:35:39,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:35:39,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:35:39,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:35:39,046 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 02:35:39,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:35:39,055 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-11-23 02:35:39,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:35:39,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-11-23 02:35:39,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:35:39,056 INFO L225 Difference]: With dead ends: 24 [2022-11-23 02:35:39,057 INFO L226 Difference]: Without dead ends: 23 [2022-11-23 02:35:39,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:35:39,058 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:35:39,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 44 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:35:39,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-23 02:35:39,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-23 02:35:39,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 02:35:39,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-23 02:35:39,067 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 20 [2022-11-23 02:35:39,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:35:39,067 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-23 02:35:39,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 02:35:39,068 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-23 02:35:39,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 02:35:39,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:35:39,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:35:39,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 02:35:39,069 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 02:35:39,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:35:39,070 INFO L85 PathProgramCache]: Analyzing trace with hash -2056231790, now seen corresponding path program 1 times [2022-11-23 02:35:39,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:35:39,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45440938] [2022-11-23 02:35:39,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:35:39,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:35:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:39,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 02:35:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:39,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-23 02:35:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:35:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:35:39,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:35:39,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45440938] [2022-11-23 02:35:39,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45440938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:35:39,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:35:39,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:35:39,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678132890] [2022-11-23 02:35:39,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:35:39,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:35:39,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:35:39,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:35:39,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:35:39,405 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 02:35:39,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:35:39,470 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-11-23 02:35:39,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:35:39,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-23 02:35:39,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:35:39,472 INFO L225 Difference]: With dead ends: 23 [2022-11-23 02:35:39,472 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 02:35:39,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:35:39,479 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:35:39,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 54 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:35:39,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 02:35:39,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 02:35:39,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:35:39,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 02:35:39,486 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-11-23 02:35:39,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:35:39,486 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:35:39,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 02:35:39,487 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 02:35:39,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 02:35:39,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-23 02:35:39,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-23 02:35:39,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-23 02:35:39,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-23 02:35:39,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 02:35:39,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 02:35:39,525 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-23 02:35:39,525 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-23 02:35:39,525 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2022-11-23 02:35:39,526 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2022-11-23 02:35:39,526 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-23 02:35:39,526 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-23 02:35:39,526 INFO L899 garLoopResultBuilder]: For program point printIntLineFINAL(lines 1426 1429) no Hoare annotation was computed. [2022-11-23 02:35:39,526 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1591) no Hoare annotation was computed. [2022-11-23 02:35:39,527 INFO L895 garLoopResultBuilder]: At program point L1569(line 1569) the Hoare annotation is: (and (<= (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_63b_goodG2BSink_~data~2#1|) 0) (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~1#1.base|) |ULTIMATE.start_goodB2G_~#data~1#1.offset|) 2147483647)) [2022-11-23 02:35:39,527 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 02:35:39,527 INFO L899 garLoopResultBuilder]: For program point L1569-1(lines 1563 1570) no Hoare annotation was computed. [2022-11-23 02:35:39,527 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1601) no Hoare annotation was computed. [2022-11-23 02:35:39,527 INFO L899 garLoopResultBuilder]: For program point L1563(lines 1563 1570) no Hoare annotation was computed. [2022-11-23 02:35:39,528 INFO L899 garLoopResultBuilder]: For program point L1557(lines 1557 1573) no Hoare annotation was computed. [2022-11-23 02:35:39,528 INFO L902 garLoopResultBuilder]: At program point L1584(line 1584) the Hoare annotation is: true [2022-11-23 02:35:39,528 INFO L899 garLoopResultBuilder]: For program point L1584-1(line 1584) no Hoare annotation was computed. [2022-11-23 02:35:39,528 INFO L902 garLoopResultBuilder]: At program point L1582(line 1582) the Hoare annotation is: true [2022-11-23 02:35:39,528 INFO L899 garLoopResultBuilder]: For program point L1582-1(line 1582) no Hoare annotation was computed. [2022-11-23 02:35:39,528 INFO L899 garLoopResultBuilder]: For program point L1549(lines 1549 1555) no Hoare annotation was computed. [2022-11-23 02:35:39,529 INFO L902 garLoopResultBuilder]: At program point L1607(line 1607) the Hoare annotation is: true [2022-11-23 02:35:39,529 INFO L899 garLoopResultBuilder]: For program point L1607-1(lines 1596 1609) no Hoare annotation was computed. [2022-11-23 02:35:39,529 INFO L899 garLoopResultBuilder]: For program point L1574(lines 1574 1578) no Hoare annotation was computed. [2022-11-23 02:35:39,529 INFO L902 garLoopResultBuilder]: At program point L1603(line 1603) the Hoare annotation is: true [2022-11-23 02:35:39,529 INFO L899 garLoopResultBuilder]: For program point L1601(line 1601) no Hoare annotation was computed. [2022-11-23 02:35:39,530 INFO L899 garLoopResultBuilder]: For program point L1601-1(line 1601) no Hoare annotation was computed. [2022-11-23 02:35:39,530 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 02:35:39,530 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1591) no Hoare annotation was computed. [2022-11-23 02:35:39,530 INFO L899 garLoopResultBuilder]: For program point L1599(lines 1599 1608) no Hoare annotation was computed. [2022-11-23 02:35:39,530 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1601) no Hoare annotation was computed. [2022-11-23 02:35:39,530 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 02:35:39,531 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 02:35:39,531 INFO L895 garLoopResultBuilder]: At program point L1593(line 1593) the Hoare annotation is: (<= (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_63b_goodG2BSink_~data~2#1|) 0) [2022-11-23 02:35:39,531 INFO L899 garLoopResultBuilder]: For program point L1593-1(lines 1587 1595) no Hoare annotation was computed. [2022-11-23 02:35:39,531 INFO L899 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2022-11-23 02:35:39,531 INFO L899 garLoopResultBuilder]: For program point L1591-1(line 1591) no Hoare annotation was computed. [2022-11-23 02:35:39,531 INFO L902 garLoopResultBuilder]: At program point L1585(lines 1579 1586) the Hoare annotation is: true [2022-11-23 02:35:39,535 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 02:35:39,538 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:35:39,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:35:39 BoogieIcfgContainer [2022-11-23 02:35:39,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:35:39,549 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:35:39,549 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:35:39,549 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:35:39,550 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:37" (3/4) ... [2022-11-23 02:35:39,553 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 02:35:39,561 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-23 02:35:39,561 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-23 02:35:39,566 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-23 02:35:39,567 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-23 02:35:39,567 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 02:35:39,567 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 02:35:39,609 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:35:39,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:35:39,610 INFO L158 Benchmark]: Toolchain (without parser) took 4136.40ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 104.8MB in the beginning and 66.8MB in the end (delta: 38.0MB). Peak memory consumption was 87.9MB. Max. memory is 16.1GB. [2022-11-23 02:35:39,610 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 146.8MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:35:39,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1628.81ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 104.8MB in the beginning and 143.1MB in the end (delta: -38.2MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2022-11-23 02:35:39,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.50ms. Allocated memory is still 195.0MB. Free memory was 143.1MB in the beginning and 140.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:35:39,611 INFO L158 Benchmark]: Boogie Preprocessor took 57.09ms. Allocated memory is still 195.0MB. Free memory was 140.1MB in the beginning and 139.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:35:39,611 INFO L158 Benchmark]: RCFGBuilder took 696.86ms. Allocated memory is still 195.0MB. Free memory was 139.0MB in the beginning and 123.3MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 02:35:39,612 INFO L158 Benchmark]: TraceAbstraction took 1620.67ms. Allocated memory is still 195.0MB. Free memory was 122.2MB in the beginning and 70.0MB in the end (delta: 52.2MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. [2022-11-23 02:35:39,612 INFO L158 Benchmark]: Witness Printer took 60.46ms. Allocated memory is still 195.0MB. Free memory was 70.0MB in the beginning and 66.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:35:39,614 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 146.8MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1628.81ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 104.8MB in the beginning and 143.1MB in the end (delta: -38.2MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.50ms. Allocated memory is still 195.0MB. Free memory was 143.1MB in the beginning and 140.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.09ms. Allocated memory is still 195.0MB. Free memory was 140.1MB in the beginning and 139.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 696.86ms. Allocated memory is still 195.0MB. Free memory was 139.0MB in the beginning and 123.3MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1620.67ms. Allocated memory is still 195.0MB. Free memory was 122.2MB in the beginning and 70.0MB in the end (delta: 52.2MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. * Witness Printer took 60.46ms. Allocated memory is still 195.0MB. Free memory was 70.0MB in the beginning and 66.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1591]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1591]: 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: 1601]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 36 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 209 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 105 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 13 NumberOfFragments, 25 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 85 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1579]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 02:35:39,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f123b42-c58c-440c-ab25-9210ff41372c/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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