./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN --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 f22d725b274ffa415472e4512d9818cb84a71f59a43ea776de8ae953bc03fbcc --- 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 09:38:26,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:38:26,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:38:26,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:38:26,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:38:26,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:38:26,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:38:26,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:38:26,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:38:26,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:38:26,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:38:26,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:38:26,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:38:26,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:38:26,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:38:26,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:38:26,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:38:26,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:38:26,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:38:26,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:38:26,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:38:26,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:38:26,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:38:26,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:38:26,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:38:26,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:38:26,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:38:26,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:38:26,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:38:26,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:38:26,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:38:26,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:38:26,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:38:26,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:38:26,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:38:26,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:38:26,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:38:26,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:38:26,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:38:26,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:38:26,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:38:26,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-20 09:38:26,335 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:38:26,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:38:26,337 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:38:26,337 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:38:26,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:38:26,338 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:38:26,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:38:26,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:38:26,339 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:38:26,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:38:26,341 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:38:26,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:38:26,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:38:26,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:38:26,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:38:26,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:38:26,343 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 09:38:26,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:38:26,343 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:38:26,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:38:26,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:38:26,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:38:26,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:38:26,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:38:26,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:38:26,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:38:26,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:38:26,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:38:26,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:38:26,346 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:38:26,347 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:38:26,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:38:26,347 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_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f22d725b274ffa415472e4512d9818cb84a71f59a43ea776de8ae953bc03fbcc [2022-11-20 09:38:26,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:38:26,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:38:26,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:38:26,673 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:38:26,674 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:38:26,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_good.i [2022-11-20 09:38:29,871 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:38:30,215 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:38:30,216 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_good.i [2022-11-20 09:38:30,250 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/data/b94b0c4c6/b4889cc93b0b4bd0a8e637cb5dd5b19c/FLAGcfbf948ca [2022-11-20 09:38:30,263 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/data/b94b0c4c6/b4889cc93b0b4bd0a8e637cb5dd5b19c [2022-11-20 09:38:30,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:38:30,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:38:30,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:38:30,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:38:30,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:38:30,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:38:30" (1/1) ... [2022-11-20 09:38:30,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ef7bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:30, skipping insertion in model container [2022-11-20 09:38:30,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:38:30" (1/1) ... [2022-11-20 09:38:30,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:38:30,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:38:30,699 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 09:38:31,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:38:31,384 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:38:31,405 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 09:38:31,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:38:31,600 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:38:31,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:31 WrapperNode [2022-11-20 09:38:31,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:38:31,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:38:31,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:38:31,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:38:31,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:31" (1/1) ... [2022-11-20 09:38:31,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:31" (1/1) ... [2022-11-20 09:38:31,656 INFO L138 Inliner]: procedures = 504, calls = 69, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 75 [2022-11-20 09:38:31,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:38:31,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:38:31,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:38:31,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:38:31,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:31" (1/1) ... [2022-11-20 09:38:31,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:31" (1/1) ... [2022-11-20 09:38:31,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:31" (1/1) ... [2022-11-20 09:38:31,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:31" (1/1) ... [2022-11-20 09:38:31,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:31" (1/1) ... [2022-11-20 09:38:31,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:31" (1/1) ... [2022-11-20 09:38:31,681 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:31" (1/1) ... [2022-11-20 09:38:31,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:31" (1/1) ... [2022-11-20 09:38:31,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:38:31,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:38:31,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:38:31,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:38:31,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:31" (1/1) ... [2022-11-20 09:38:31,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:38:31,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:38:31,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:38:31,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:38:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-20 09:38:31,778 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-20 09:38:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 09:38:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 09:38:31,779 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 09:38:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:38:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 09:38:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:38:31,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:38:31,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:38:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:38:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 09:38:31,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:38:31,992 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:38:31,994 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:38:32,209 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:38:32,215 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:38:32,216 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 09:38:32,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:38:32 BoogieIcfgContainer [2022-11-20 09:38:32,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:38:32,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:38:32,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:38:32,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:38:32,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:38:30" (1/3) ... [2022-11-20 09:38:32,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3570c041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:38:32, skipping insertion in model container [2022-11-20 09:38:32,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:31" (2/3) ... [2022-11-20 09:38:32,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3570c041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:38:32, skipping insertion in model container [2022-11-20 09:38:32,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:38:32" (3/3) ... [2022-11-20 09:38:32,227 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_68_good.i [2022-11-20 09:38:32,247 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:38:32,248 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 09:38:32,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:38:32,305 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;@27461733, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:38:32,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 09:38:32,311 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) [2022-11-20 09:38:32,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 09:38:32,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:38:32,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:38:32,325 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)] === [2022-11-20 09:38:32,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:38:32,333 INFO L85 PathProgramCache]: Analyzing trace with hash -968710489, now seen corresponding path program 1 times [2022-11-20 09:38:32,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:38:32,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951079142] [2022-11-20 09:38:32,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:38:32,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:38:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:38:32,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:38:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:38:32,635 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 09:38:32,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:38:32,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951079142] [2022-11-20 09:38:32,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951079142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:38:32,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:38:32,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:38:32,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191219810] [2022-11-20 09:38:32,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:38:32,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:38:32,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:38:32,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:38:32,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:38:32,683 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) [2022-11-20 09:38:32,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:38:32,761 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2022-11-20 09:38:32,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:38:32,766 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 [2022-11-20 09:38:32,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:38:32,779 INFO L225 Difference]: With dead ends: 36 [2022-11-20 09:38:32,779 INFO L226 Difference]: Without dead ends: 25 [2022-11-20 09:38:32,782 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 [2022-11-20 09:38:32,787 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:38:32,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 53 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:38:32,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-20 09:38:32,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-20 09:38:32,832 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) [2022-11-20 09:38:32,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-11-20 09:38:32,836 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 9 [2022-11-20 09:38:32,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:38:32,838 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-11-20 09:38:32,839 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) [2022-11-20 09:38:32,839 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-11-20 09:38:32,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 09:38:32,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:38:32,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:38:32,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:38:32,843 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)] === [2022-11-20 09:38:32,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:38:32,845 INFO L85 PathProgramCache]: Analyzing trace with hash 34745961, now seen corresponding path program 1 times [2022-11-20 09:38:32,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:38:32,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419996170] [2022-11-20 09:38:32,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:38:32,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:38:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:38:32,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:38:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:38:32,984 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 09:38:32,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:38:32,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419996170] [2022-11-20 09:38:32,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419996170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:38:32,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:38:32,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:38:33,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756610298] [2022-11-20 09:38:33,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:38:33,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:38:33,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:38:33,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:38:33,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:38:33,003 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) [2022-11-20 09:38:33,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:38:33,017 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-11-20 09:38:33,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:38:33,018 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 [2022-11-20 09:38:33,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:38:33,020 INFO L225 Difference]: With dead ends: 25 [2022-11-20 09:38:33,020 INFO L226 Difference]: Without dead ends: 24 [2022-11-20 09:38:33,021 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 [2022-11-20 09:38:33,023 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 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 [2022-11-20 09:38:33,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:38:33,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-20 09:38:33,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-20 09:38:33,033 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) [2022-11-20 09:38:33,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-20 09:38:33,036 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 10 [2022-11-20 09:38:33,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:38:33,038 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-20 09:38:33,039 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) [2022-11-20 09:38:33,039 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-20 09:38:33,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 09:38:33,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:38:33,041 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] [2022-11-20 09:38:33,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:38:33,042 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)] === [2022-11-20 09:38:33,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:38:33,043 INFO L85 PathProgramCache]: Analyzing trace with hash 2011879922, now seen corresponding path program 1 times [2022-11-20 09:38:33,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:38:33,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060821144] [2022-11-20 09:38:33,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:38:33,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:38:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:38:33,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:38:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:38:33,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:38:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:38:33,317 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 09:38:33,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:38:33,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060821144] [2022-11-20 09:38:33,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060821144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:38:33,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:38:33,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:38:33,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268883125] [2022-11-20 09:38:33,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:38:33,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:38:33,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:38:33,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:38:33,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:38:33,321 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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) [2022-11-20 09:38:33,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:38:33,348 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-11-20 09:38:33,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:38:33,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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 [2022-11-20 09:38:33,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:38:33,351 INFO L225 Difference]: With dead ends: 24 [2022-11-20 09:38:33,351 INFO L226 Difference]: Without dead ends: 23 [2022-11-20 09:38:33,351 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 [2022-11-20 09:38:33,353 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 7 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:38:33,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 59 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:38:33,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-20 09:38:33,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-20 09:38:33,358 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) [2022-11-20 09:38:33,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-20 09:38:33,359 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 20 [2022-11-20 09:38:33,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:38:33,359 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-20 09:38:33,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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) [2022-11-20 09:38:33,360 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-20 09:38:33,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 09:38:33,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:38:33,361 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] [2022-11-20 09:38:33,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:38:33,361 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)] === [2022-11-20 09:38:33,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:38:33,371 INFO L85 PathProgramCache]: Analyzing trace with hash -2056231790, now seen corresponding path program 1 times [2022-11-20 09:38:33,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:38:33,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184689247] [2022-11-20 09:38:33,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:38:33,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:38:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:38:33,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:38:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:38:33,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:38:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:38:33,439 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 09:38:33,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:38:33,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184689247] [2022-11-20 09:38:33,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184689247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:38:33,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:38:33,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:38:33,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646187280] [2022-11-20 09:38:33,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:38:33,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:38:33,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:38:33,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:38:33,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:38:33,443 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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) [2022-11-20 09:38:33,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:38:33,450 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-11-20 09:38:33,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:38:33,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 [2022-11-20 09:38:33,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:38:33,452 INFO L225 Difference]: With dead ends: 23 [2022-11-20 09:38:33,452 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 09:38:33,453 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 [2022-11-20 09:38:33,454 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:38:33,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:38:33,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 09:38:33,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 09:38:33,456 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) [2022-11-20 09:38:33,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 09:38:33,457 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-11-20 09:38:33,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:38:33,457 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:38:33,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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) [2022-11-20 09:38:33,457 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 09:38:33,458 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 09:38:33,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-20 09:38:33,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-20 09:38:33,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-20 09:38:33,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-20 09:38:33,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:38:33,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 09:38:33,491 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-20 09:38:33,491 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-20 09:38:33,491 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2022-11-20 09:38:33,492 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2022-11-20 09:38:33,492 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-20 09:38:33,492 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-20 09:38:33,492 INFO L899 garLoopResultBuilder]: For program point printIntLineFINAL(lines 1426 1429) no Hoare annotation was computed. [2022-11-20 09:38:33,493 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1599) no Hoare annotation was computed. [2022-11-20 09:38:33,493 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 09:38:33,493 INFO L899 garLoopResultBuilder]: For program point L1567(lines 1567 1574) no Hoare annotation was computed. [2022-11-20 09:38:33,493 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1609) no Hoare annotation was computed. [2022-11-20 09:38:33,493 INFO L899 garLoopResultBuilder]: For program point L1561(lines 1561 1578) no Hoare annotation was computed. [2022-11-20 09:38:33,494 INFO L895 garLoopResultBuilder]: At program point L1590(lines 1584 1591) the Hoare annotation is: (<= (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_68b_goodG2BSink_~data~2#1|) 0) [2022-11-20 09:38:33,494 INFO L899 garLoopResultBuilder]: For program point L1553(lines 1553 1560) no Hoare annotation was computed. [2022-11-20 09:38:33,494 INFO L895 garLoopResultBuilder]: At program point L1615(line 1615) the Hoare annotation is: (<= (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_68b_goodG2BSink_~data~2#1|) 0) [2022-11-20 09:38:33,494 INFO L899 garLoopResultBuilder]: For program point L1615-1(lines 1604 1617) no Hoare annotation was computed. [2022-11-20 09:38:33,495 INFO L895 garLoopResultBuilder]: At program point L1611(line 1611) the Hoare annotation is: (<= (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_68b_goodG2BSink_~data~2#1|) 0) [2022-11-20 09:38:33,495 INFO L899 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2022-11-20 09:38:33,495 INFO L899 garLoopResultBuilder]: For program point L1609-1(line 1609) no Hoare annotation was computed. [2022-11-20 09:38:33,495 INFO L899 garLoopResultBuilder]: For program point L1607(lines 1607 1616) no Hoare annotation was computed. [2022-11-20 09:38:33,495 INFO L895 garLoopResultBuilder]: At program point L1601(line 1601) the Hoare annotation is: (<= (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_68b_goodG2BSink_~data~2#1|) 0) [2022-11-20 09:38:33,496 INFO L899 garLoopResultBuilder]: For program point L1601-1(lines 1595 1603) no Hoare annotation was computed. [2022-11-20 09:38:33,496 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 09:38:33,496 INFO L899 garLoopResultBuilder]: For program point L1599(line 1599) no Hoare annotation was computed. [2022-11-20 09:38:33,496 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1599) no Hoare annotation was computed. [2022-11-20 09:38:33,497 INFO L899 garLoopResultBuilder]: For program point L1599-1(line 1599) no Hoare annotation was computed. [2022-11-20 09:38:33,497 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1609) no Hoare annotation was computed. [2022-11-20 09:38:33,497 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 09:38:33,497 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 09:38:33,497 INFO L895 garLoopResultBuilder]: At program point L1589(line 1589) the Hoare annotation is: (<= (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_68b_goodG2BSink_~data~2#1|) 0) [2022-11-20 09:38:33,498 INFO L899 garLoopResultBuilder]: For program point L1589-1(line 1589) no Hoare annotation was computed. [2022-11-20 09:38:33,498 INFO L902 garLoopResultBuilder]: At program point L1587(line 1587) the Hoare annotation is: true [2022-11-20 09:38:33,498 INFO L899 garLoopResultBuilder]: For program point L1587-1(line 1587) no Hoare annotation was computed. [2022-11-20 09:38:33,498 INFO L899 garLoopResultBuilder]: For program point L1579(lines 1579 1583) no Hoare annotation was computed. [2022-11-20 09:38:33,499 INFO L895 garLoopResultBuilder]: At program point L1573(line 1573) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G_~data~1#1| 2147483647) (<= (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_68b_goodG2BSink_~data~2#1|) 0)) [2022-11-20 09:38:33,499 INFO L899 garLoopResultBuilder]: For program point L1573-1(lines 1567 1574) no Hoare annotation was computed. [2022-11-20 09:38:33,502 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-20 09:38:33,505 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:38:33,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:38:33 BoogieIcfgContainer [2022-11-20 09:38:33,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:38:33,519 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:38:33,519 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:38:33,519 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:38:33,520 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:38:32" (3/4) ... [2022-11-20 09:38:33,523 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 09:38:33,530 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-20 09:38:33,530 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-20 09:38:33,535 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-20 09:38:33,535 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 09:38:33,536 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 09:38:33,536 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 09:38:33,582 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 09:38:33,583 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:38:33,583 INFO L158 Benchmark]: Toolchain (without parser) took 3316.22ms. Allocated memory is still 178.3MB. Free memory was 130.3MB in the beginning and 113.6MB in the end (delta: 16.7MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-11-20 09:38:33,584 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory was 87.0MB in the beginning and 87.0MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:38:33,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1332.78ms. Allocated memory is still 178.3MB. Free memory was 130.3MB in the beginning and 127.1MB in the end (delta: 3.3MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2022-11-20 09:38:33,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.58ms. Allocated memory is still 178.3MB. Free memory was 127.1MB in the beginning and 123.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:38:33,585 INFO L158 Benchmark]: Boogie Preprocessor took 28.67ms. Allocated memory is still 178.3MB. Free memory was 123.9MB in the beginning and 121.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:38:33,586 INFO L158 Benchmark]: RCFGBuilder took 531.59ms. Allocated memory is still 178.3MB. Free memory was 121.8MB in the beginning and 108.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 09:38:33,586 INFO L158 Benchmark]: TraceAbstraction took 1298.31ms. Allocated memory is still 178.3MB. Free memory was 107.2MB in the beginning and 116.8MB in the end (delta: -9.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:38:33,586 INFO L158 Benchmark]: Witness Printer took 64.07ms. Allocated memory is still 178.3MB. Free memory was 116.8MB in the beginning and 113.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:38:33,588 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory was 87.0MB in the beginning and 87.0MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1332.78ms. Allocated memory is still 178.3MB. Free memory was 130.3MB in the beginning and 127.1MB in the end (delta: 3.3MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.58ms. Allocated memory is still 178.3MB. Free memory was 127.1MB in the beginning and 123.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.67ms. Allocated memory is still 178.3MB. Free memory was 123.9MB in the beginning and 121.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 531.59ms. Allocated memory is still 178.3MB. Free memory was 121.8MB in the beginning and 108.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1298.31ms. Allocated memory is still 178.3MB. Free memory was 107.2MB in the beginning and 116.8MB in the end (delta: -9.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 64.07ms. Allocated memory is still 178.3MB. Free memory was 116.8MB in the beginning and 113.6MB 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: 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 - PositiveResult [Line: 1609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1609]: 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: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 203 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 106 mSDtfsCounter, 12 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, 37 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 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: 1584]: Loop Invariant Derived loop invariant: 2 + data <= 0 RESULT: Ultimate proved your program to be correct! [2022-11-20 09:38:33,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43c67750-3e80-425a-8664-3316308de97e/bin/uautomizer-ug76WZFUDN/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