./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/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_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/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_71d829b6-4343-49cd-8b3b-a62d6700bbdd/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 dddfccd8da9f12f34e194b4a9fc4c4f6991db16bc01a02bc13eca415e127610f --- 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 11:38:35,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:38:35,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:38:35,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:38:35,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:38:35,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:38:35,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:38:35,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:38:35,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:38:35,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:38:35,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:38:35,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:38:35,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:38:35,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:38:35,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:38:35,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:38:35,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:38:35,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:38:35,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:38:35,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:38:35,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:38:35,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:38:35,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:38:35,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:38:35,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:38:35,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:38:35,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:38:35,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:38:35,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:38:35,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:38:35,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:38:35,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:38:35,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:38:35,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:38:35,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:38:35,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:38:35,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:38:35,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:38:35,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:38:35,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:38:35,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:38:35,535 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-20 11:38:35,594 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:38:35,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:38:35,595 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:38:35,595 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:38:35,596 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:38:35,596 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:38:35,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:38:35,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:38:35,598 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:38:35,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:38:35,599 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:38:35,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:38:35,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:38:35,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:38:35,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:38:35,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:38:35,600 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:38:35,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:38:35,601 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:38:35,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:38:35,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:38:35,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:38:35,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:38:35,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:38:35,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:38:35,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:38:35,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:38:35,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:38:35,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:38:35,604 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:38:35,604 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:38:35,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:38:35,605 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_71d829b6-4343-49cd-8b3b-a62d6700bbdd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dddfccd8da9f12f34e194b4a9fc4c4f6991db16bc01a02bc13eca415e127610f [2022-11-20 11:38:35,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:38:35,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:38:35,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:38:35,964 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:38:35,965 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:38:35,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i [2022-11-20 11:38:39,254 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:38:39,671 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:38:39,672 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i [2022-11-20 11:38:39,713 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/data/14af7ff87/b84593b6637b46e0bd075821c53a1331/FLAG080135b61 [2022-11-20 11:38:39,734 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/data/14af7ff87/b84593b6637b46e0bd075821c53a1331 [2022-11-20 11:38:39,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:38:39,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:38:39,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:38:39,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:38:39,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:38:39,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:38:39" (1/1) ... [2022-11-20 11:38:39,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55109ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:39, skipping insertion in model container [2022-11-20 11:38:39,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:38:39" (1/1) ... [2022-11-20 11:38:39,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:38:39,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:38:40,206 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:38:40,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:38:40,867 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:38:40,904 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:38:40,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:38:41,139 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:38:41,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:41 WrapperNode [2022-11-20 11:38:41,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:38:41,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:38:41,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:38:41,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:38:41,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:41" (1/1) ... [2022-11-20 11:38:41,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:41" (1/1) ... [2022-11-20 11:38:41,238 INFO L138 Inliner]: procedures = 500, calls = 67, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2022-11-20 11:38:41,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:38:41,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:38:41,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:38:41,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:38:41,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:41" (1/1) ... [2022-11-20 11:38:41,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:41" (1/1) ... [2022-11-20 11:38:41,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:41" (1/1) ... [2022-11-20 11:38:41,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:41" (1/1) ... [2022-11-20 11:38:41,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:41" (1/1) ... [2022-11-20 11:38:41,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:41" (1/1) ... [2022-11-20 11:38:41,264 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:41" (1/1) ... [2022-11-20 11:38:41,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:41" (1/1) ... [2022-11-20 11:38:41,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:38:41,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:38:41,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:38:41,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:38:41,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:41" (1/1) ... [2022-11-20 11:38:41,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:38:41,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:41,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:41,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:38:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-20 11:38:41,384 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-20 11:38:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 11:38:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2022-11-20 11:38:41,385 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2022-11-20 11:38:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 11:38:41,385 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 11:38:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:38:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 11:38:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:38:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:38:41,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:38:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:38:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 11:38:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:38:41,555 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:38:41,557 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:38:41,827 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:38:41,834 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:38:41,835 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:38:41,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:38:41 BoogieIcfgContainer [2022-11-20 11:38:41,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:38:41,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:38:41,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:38:41,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:38:41,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:38:39" (1/3) ... [2022-11-20 11:38:41,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9b0812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:38:41, skipping insertion in model container [2022-11-20 11:38:41,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:41" (2/3) ... [2022-11-20 11:38:41,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9b0812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:38:41, skipping insertion in model container [2022-11-20 11:38:41,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:38:41" (3/3) ... [2022-11-20 11:38:41,846 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i [2022-11-20 11:38:41,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:38:41,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 11:38:41,933 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:38:41,941 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;@1efcac30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:38:41,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 11:38:41,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 35 states have internal predecessors, (38), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-20 11:38:41,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 11:38:41,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:38:41,958 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:41,958 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 11:38:41,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:41,965 INFO L85 PathProgramCache]: Analyzing trace with hash -30701167, now seen corresponding path program 1 times [2022-11-20 11:38:41,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:41,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878141731] [2022-11-20 11:38:41,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:41,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:42,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:38:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:42,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:38:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:42,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 11:38:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:42,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 11:38:42,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:42,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878141731] [2022-11-20 11:38:42,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878141731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:42,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:42,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:42,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375655492] [2022-11-20 11:38:42,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:42,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:42,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:42,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:42,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:42,561 INFO L87 Difference]: Start difference. First operand has 43 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 35 states have internal predecessors, (38), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 11:38:42,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:38:42,714 INFO L93 Difference]: Finished difference Result 73 states and 93 transitions. [2022-11-20 11:38:42,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:42,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-11-20 11:38:42,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:38:42,731 INFO L225 Difference]: With dead ends: 73 [2022-11-20 11:38:42,732 INFO L226 Difference]: Without dead ends: 41 [2022-11-20 11:38:42,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 11:38:42,743 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 14 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:38:42,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 87 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:38:42,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-20 11:38:42,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2022-11-20 11:38:42,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 28 states have (on average 1.25) internal successors, (35), 32 states have internal predecessors, (35), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 11:38:42,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2022-11-20 11:38:42,803 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 22 [2022-11-20 11:38:42,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:38:42,805 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-11-20 11:38:42,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 11:38:42,806 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2022-11-20 11:38:42,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 11:38:42,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:38:42,811 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:42,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:38:42,811 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 11:38:42,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:42,815 INFO L85 PathProgramCache]: Analyzing trace with hash -951736103, now seen corresponding path program 1 times [2022-11-20 11:38:42,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:42,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846771495] [2022-11-20 11:38:42,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:42,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:42,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:38:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:42,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:38:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:42,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 11:38:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:42,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 11:38:42,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:42,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846771495] [2022-11-20 11:38:42,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846771495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:42,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:42,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:42,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801026706] [2022-11-20 11:38:42,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:42,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:42,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:42,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:42,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:42,990 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 11:38:43,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:38:43,052 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2022-11-20 11:38:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:43,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-11-20 11:38:43,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:38:43,057 INFO L225 Difference]: With dead ends: 52 [2022-11-20 11:38:43,058 INFO L226 Difference]: Without dead ends: 40 [2022-11-20 11:38:43,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 11:38:43,065 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 8 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:38:43,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 50 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:38:43,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-20 11:38:43,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-20 11:38:43,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 29 states have (on average 1.206896551724138) internal successors, (35), 32 states have internal predecessors, (35), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 11:38:43,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2022-11-20 11:38:43,074 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 23 [2022-11-20 11:38:43,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:38:43,074 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2022-11-20 11:38:43,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 11:38:43,075 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2022-11-20 11:38:43,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 11:38:43,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:38:43,076 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:43,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:38:43,077 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:38:43,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:43,078 INFO L85 PathProgramCache]: Analyzing trace with hash -631698228, now seen corresponding path program 1 times [2022-11-20 11:38:43,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:43,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220897099] [2022-11-20 11:38:43,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:43,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:43,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:38:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:38:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:43,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 11:38:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:43,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 11:38:43,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:43,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220897099] [2022-11-20 11:38:43,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220897099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:43,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:43,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:43,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982898027] [2022-11-20 11:38:43,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:43,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:43,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:43,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:43,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:43,194 INFO L87 Difference]: Start difference. First operand 40 states and 45 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:38:43,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:38:43,213 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2022-11-20 11:38:43,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:43,213 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-11-20 11:38:43,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:38:43,214 INFO L225 Difference]: With dead ends: 40 [2022-11-20 11:38:43,215 INFO L226 Difference]: Without dead ends: 28 [2022-11-20 11:38:43,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 11:38:43,217 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 5 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:38:43,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 50 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:38:43,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-20 11:38:43,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-20 11:38:43,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 22 states have internal predecessors, (23), 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 11:38:43,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2022-11-20 11:38:43,223 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2022-11-20 11:38:43,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:38:43,224 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2022-11-20 11:38:43,224 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:38:43,224 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2022-11-20 11:38:43,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 11:38:43,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:38:43,225 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:43,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:38:43,226 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:38:43,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:43,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1892191486, now seen corresponding path program 1 times [2022-11-20 11:38:43,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:43,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370957746] [2022-11-20 11:38:43,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:43,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:43,259 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:43,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:43,306 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:38:43,308 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-20 11:38:43,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-20 11:38:43,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-20 11:38:43,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-20 11:38:43,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:38:43,315 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-20 11:38:43,320 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:38:43,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:38:43 BoogieIcfgContainer [2022-11-20 11:38:43,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:38:43,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:38:43,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:38:43,355 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:38:43,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:38:41" (3/4) ... [2022-11-20 11:38:43,359 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:38:43,360 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:38:43,360 INFO L158 Benchmark]: Toolchain (without parser) took 3618.46ms. Allocated memory is still 226.5MB. Free memory was 178.4MB in the beginning and 109.4MB in the end (delta: 69.0MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2022-11-20 11:38:43,361 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 151.0MB. Free memory was 94.8MB in the beginning and 94.7MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:38:43,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1396.92ms. Allocated memory is still 226.5MB. Free memory was 178.4MB in the beginning and 116.4MB in the end (delta: 61.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-20 11:38:43,362 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.59ms. Allocated memory is still 226.5MB. Free memory was 116.4MB in the beginning and 113.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:38:43,362 INFO L158 Benchmark]: Boogie Preprocessor took 29.21ms. Allocated memory is still 226.5MB. Free memory was 113.5MB in the beginning and 112.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:38:43,363 INFO L158 Benchmark]: RCFGBuilder took 567.97ms. Allocated memory is still 226.5MB. Free memory was 112.2MB in the beginning and 181.7MB in the end (delta: -69.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-11-20 11:38:43,363 INFO L158 Benchmark]: TraceAbstraction took 1514.78ms. Allocated memory is still 226.5MB. Free memory was 180.7MB in the beginning and 109.4MB in the end (delta: 71.3MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2022-11-20 11:38:43,364 INFO L158 Benchmark]: Witness Printer took 4.85ms. Allocated memory is still 226.5MB. Free memory is still 109.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:38:43,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 151.0MB. Free memory was 94.8MB in the beginning and 94.7MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1396.92ms. Allocated memory is still 226.5MB. Free memory was 178.4MB in the beginning and 116.4MB in the end (delta: 61.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.59ms. Allocated memory is still 226.5MB. Free memory was 116.4MB in the beginning and 113.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.21ms. Allocated memory is still 226.5MB. Free memory was 113.5MB in the beginning and 112.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.97ms. Allocated memory is still 226.5MB. Free memory was 112.2MB in the beginning and 181.7MB in the end (delta: -69.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1514.78ms. Allocated memory is still 226.5MB. Free memory was 180.7MB in the beginning and 109.4MB in the end (delta: 71.3MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. * Witness Printer took 4.85ms. Allocated memory is still 226.5MB. Free memory is still 109.4MB. There was no memory consumed. 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 - UnprovableResult [Line: 1574]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1597] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={5:0}] [L1414] COND TRUE line != ((void *)0) [L1597] RET printLine("Calling bad()...") VAL [\old(argc)=1073741829, argc=1073741829, argv={1073741827:1073741830}, argv={1073741827:1073741830}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1598] CALL CWE191_Integer_Underflow__int_fgets_multiply_12_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrueOrFalse() [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1570] RET globalReturnsTrueOrFalse() VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1] [L1570] COND TRUE globalReturnsTrueOrFalse() [L1572] COND TRUE data < 0 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] data * 2 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1574]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1584]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1584]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 43 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 187 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 109 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 9/9 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 11:38:43,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/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_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/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 dddfccd8da9f12f34e194b4a9fc4c4f6991db16bc01a02bc13eca415e127610f --- 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 11:38:46,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:38:46,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:38:46,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:38:46,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:38:46,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:38:46,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:38:46,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:38:46,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:38:46,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:38:46,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:38:46,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:38:46,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:38:46,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:38:46,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:38:46,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:38:46,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:38:46,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:38:46,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:38:46,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:38:46,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:38:46,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:38:46,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:38:46,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:38:46,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:38:46,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:38:46,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:38:46,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:38:46,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:38:46,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:38:46,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:38:46,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:38:46,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:38:46,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:38:46,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:38:46,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:38:46,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:38:46,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:38:46,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:38:46,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:38:46,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:38:46,321 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-20 11:38:46,362 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:38:46,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:38:46,363 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:38:46,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:38:46,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:38:46,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:38:46,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:38:46,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:38:46,366 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:38:46,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:38:46,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:38:46,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:38:46,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:38:46,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:38:46,369 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:38:46,369 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:38:46,369 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:38:46,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:38:46,370 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:38:46,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:38:46,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:38:46,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:38:46,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:38:46,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:38:46,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:38:46,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:38:46,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:38:46,372 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:38:46,373 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:38:46,373 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:38:46,373 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:38:46,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:38:46,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:38:46,374 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_71d829b6-4343-49cd-8b3b-a62d6700bbdd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dddfccd8da9f12f34e194b4a9fc4c4f6991db16bc01a02bc13eca415e127610f [2022-11-20 11:38:46,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:38:46,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:38:46,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:38:46,806 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:38:46,808 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:38:46,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i [2022-11-20 11:38:50,202 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:38:50,653 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:38:50,654 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i [2022-11-20 11:38:50,694 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/data/3ae44d4d5/94968e2a6bbb4710b7cb404e33bc31f8/FLAG8e4c87e30 [2022-11-20 11:38:50,714 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/data/3ae44d4d5/94968e2a6bbb4710b7cb404e33bc31f8 [2022-11-20 11:38:50,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:38:50,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:38:50,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:38:50,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:38:50,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:38:50,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:38:50" (1/1) ... [2022-11-20 11:38:50,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b4965dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:50, skipping insertion in model container [2022-11-20 11:38:50,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:38:50" (1/1) ... [2022-11-20 11:38:50,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:38:50,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:38:51,286 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:38:52,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:38:52,030 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:38:52,067 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:38:52,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:38:52,252 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:38:52,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:52 WrapperNode [2022-11-20 11:38:52,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:38:52,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:38:52,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:38:52,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:38:52,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:52" (1/1) ... [2022-11-20 11:38:52,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:52" (1/1) ... [2022-11-20 11:38:52,324 INFO L138 Inliner]: procedures = 505, calls = 67, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2022-11-20 11:38:52,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:38:52,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:38:52,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:38:52,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:38:52,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:52" (1/1) ... [2022-11-20 11:38:52,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:52" (1/1) ... [2022-11-20 11:38:52,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:52" (1/1) ... [2022-11-20 11:38:52,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:52" (1/1) ... [2022-11-20 11:38:52,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:52" (1/1) ... [2022-11-20 11:38:52,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:52" (1/1) ... [2022-11-20 11:38:52,352 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:52" (1/1) ... [2022-11-20 11:38:52,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:52" (1/1) ... [2022-11-20 11:38:52,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:38:52,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:38:52,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:38:52,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:38:52,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:52" (1/1) ... [2022-11-20 11:38:52,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:38:52,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:52,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:52,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-20 11:38:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-20 11:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 11:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2022-11-20 11:38:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2022-11-20 11:38:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 11:38:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 11:38:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:38:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:38:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:38:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:38:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:38:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:38:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 11:38:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:38:52,610 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:38:52,612 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:38:52,867 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:38:52,874 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:38:52,875 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:38:52,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:38:52 BoogieIcfgContainer [2022-11-20 11:38:52,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:38:52,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:38:52,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:38:52,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:38:52,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:38:50" (1/3) ... [2022-11-20 11:38:52,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc19a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:38:52, skipping insertion in model container [2022-11-20 11:38:52,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:52" (2/3) ... [2022-11-20 11:38:52,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc19a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:38:52, skipping insertion in model container [2022-11-20 11:38:52,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:38:52" (3/3) ... [2022-11-20 11:38:52,888 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i [2022-11-20 11:38:52,908 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:38:52,908 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-20 11:38:52,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc19a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:38:52, skipping insertion in model container [2022-11-20 11:38:52,910 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:38:52,911 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:38:52,911 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:38:52,912 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:38:52,912 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:38:52" (3/3) ... [2022-11-20 11:38:52,915 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:38:52,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-20 11:38:52,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrueOrFalse [2022-11-20 11:38:52,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-20 11:38:52,930 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-20 11:38:52,930 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-20 11:38:52,932 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 11:38:52,933 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:38:52,991 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:38:52,992 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:38:52,993 INFO L158 Benchmark]: Toolchain (without parser) took 2273.86ms. Allocated memory is still 86.0MB. Free memory was 65.8MB in the beginning and 43.1MB in the end (delta: 22.7MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-11-20 11:38:52,993 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 60.8MB. Free memory was 39.1MB in the beginning and 39.0MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:38:53,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1532.97ms. Allocated memory is still 86.0MB. Free memory was 65.6MB in the beginning and 45.1MB in the end (delta: 20.5MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2022-11-20 11:38:53,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.39ms. Allocated memory is still 86.0MB. Free memory was 45.1MB in the beginning and 42.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:38:53,002 INFO L158 Benchmark]: Boogie Preprocessor took 32.26ms. Allocated memory is still 86.0MB. Free memory was 42.1MB in the beginning and 40.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:38:53,004 INFO L158 Benchmark]: RCFGBuilder took 521.95ms. Allocated memory is still 86.0MB. Free memory was 40.0MB in the beginning and 48.9MB in the end (delta: -9.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-11-20 11:38:53,005 INFO L158 Benchmark]: TraceAbstraction took 28.60ms. Allocated memory is still 86.0MB. Free memory was 48.5MB in the beginning and 46.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:38:53,005 INFO L158 Benchmark]: Witness Printer took 80.55ms. Allocated memory is still 86.0MB. Free memory was 46.2MB in the beginning and 43.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:38:53,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 60.8MB. Free memory was 39.1MB in the beginning and 39.0MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1532.97ms. Allocated memory is still 86.0MB. Free memory was 65.6MB in the beginning and 45.1MB in the end (delta: 20.5MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.39ms. Allocated memory is still 86.0MB. Free memory was 45.1MB in the beginning and 42.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.26ms. Allocated memory is still 86.0MB. Free memory was 42.1MB in the beginning and 40.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 521.95ms. Allocated memory is still 86.0MB. Free memory was 40.0MB in the beginning and 48.9MB in the end (delta: -9.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * TraceAbstraction took 28.60ms. Allocated memory is still 86.0MB. Free memory was 48.5MB in the beginning and 46.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 80.55ms. Allocated memory is still 86.0MB. Free memory was 46.2MB in the beginning and 43.1MB 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: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2022-11-20 11:38:53,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d829b6-4343-49cd-8b3b-a62d6700bbdd/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