./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:50:44,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:50:44,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:50:44,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:50:44,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:50:44,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:50:44,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:50:44,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:50:44,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:50:44,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:50:44,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:50:44,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:50:44,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:50:44,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:50:44,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:50:44,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:50:44,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:50:44,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:50:44,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:50:44,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:50:44,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:50:44,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:50:44,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:50:44,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:50:44,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:50:44,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:50:44,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:50:44,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:50:44,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:50:44,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:50:44,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:50:44,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:50:44,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:50:44,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:50:44,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:50:44,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:50:44,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:50:44,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:50:44,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:50:44,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:50:44,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:50:44,249 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 14:50:44,291 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:50:44,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:50:44,292 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:50:44,292 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:50:44,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:50:44,293 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:50:44,294 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:50:44,294 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:50:44,294 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:50:44,294 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:50:44,296 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:50:44,296 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:50:44,296 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:50:44,296 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:50:44,297 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:50:44,297 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:50:44,297 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:50:44,297 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:50:44,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:50:44,299 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:50:44,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:50:44,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:50:44,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:50:44,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:50:44,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:50:44,300 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:50:44,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:50:44,301 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:50:44,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:50:44,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:50:44,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:50:44,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:50:44,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:50:44,303 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:50:44,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:50:44,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:50:44,304 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:50:44,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:50:44,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:50:44,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:50:44,305 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_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 [2022-11-23 14:50:44,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:50:44,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:50:44,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:50:44,601 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:50:44,602 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:50:44,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2022-11-23 14:50:47,647 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:50:48,181 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:50:48,182 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2022-11-23 14:50:48,205 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/data/d3e871a64/96ab3e52d5ae4c238f5aee8b8a3df582/FLAG1e18c60c9 [2022-11-23 14:50:48,222 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/data/d3e871a64/96ab3e52d5ae4c238f5aee8b8a3df582 [2022-11-23 14:50:48,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:50:48,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:50:48,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:50:48,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:50:48,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:50:48,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:48" (1/1) ... [2022-11-23 14:50:48,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a273f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:48, skipping insertion in model container [2022-11-23 14:50:48,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:48" (1/1) ... [2022-11-23 14:50:48,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:50:48,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:50:48,803 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:50:49,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:50:49,987 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:50:50,008 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:50:50,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:50:50,599 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:50:50,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:50 WrapperNode [2022-11-23 14:50:50,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:50:50,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:50:50,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:50:50,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:50:50,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:50" (1/1) ... [2022-11-23 14:50:50,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:50" (1/1) ... [2022-11-23 14:50:50,688 INFO L138 Inliner]: procedures = 938, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2022-11-23 14:50:50,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:50:50,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:50:50,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:50:50,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:50:50,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:50" (1/1) ... [2022-11-23 14:50:50,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:50" (1/1) ... [2022-11-23 14:50:50,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:50" (1/1) ... [2022-11-23 14:50:50,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:50" (1/1) ... [2022-11-23 14:50:50,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:50" (1/1) ... [2022-11-23 14:50:50,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:50" (1/1) ... [2022-11-23 14:50:50,716 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:50" (1/1) ... [2022-11-23 14:50:50,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:50" (1/1) ... [2022-11-23 14:50:50,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:50:50,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:50:50,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:50:50,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:50:50,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:50" (1/1) ... [2022-11-23 14:50:50,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:50:50,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:50:50,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:50:50,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:50:50,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:50:50,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:50:50,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:50:50,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:50:50,847 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 14:50:50,847 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 14:50:50,847 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 14:50:50,848 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 14:50:50,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:50:50,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:50:50,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:50:51,043 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:50:51,046 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:50:51,199 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:50:51,249 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:50:51,249 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:50:51,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:51 BoogieIcfgContainer [2022-11-23 14:50:51,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:50:51,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:50:51,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:50:51,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:50:51,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:50:48" (1/3) ... [2022-11-23 14:50:51,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c0656f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:50:51, skipping insertion in model container [2022-11-23 14:50:51,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:50" (2/3) ... [2022-11-23 14:50:51,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c0656f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:50:51, skipping insertion in model container [2022-11-23 14:50:51,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:51" (3/3) ... [2022-11-23 14:50:51,260 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2022-11-23 14:50:51,283 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:50:51,283 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 14:50:51,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:50:51,346 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=FINITE_AUTOMATA, 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;@6685cd9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:50:51,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 14:50:51,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:50:51,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:50:51,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:51,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:51,362 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 14:50:51,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:51,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1607565872, now seen corresponding path program 1 times [2022-11-23 14:50:51,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:50:51,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558931199] [2022-11-23 14:50:51,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:51,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:50:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:51,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:51,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:50:51,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558931199] [2022-11-23 14:50:51,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558931199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:51,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:51,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:50:51,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704715041] [2022-11-23 14:50:51,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:51,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:50:51,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:50:51,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:50:51,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:50:51,756 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:50:51,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:51,825 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-11-23 14:50:51,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:50:51,828 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-11-23 14:50:51,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:51,835 INFO L225 Difference]: With dead ends: 15 [2022-11-23 14:50:51,835 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 14:50:51,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:50:51,845 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:51,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:50:51,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 14:50:51,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-23 14:50:51,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:50:51,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-11-23 14:50:51,885 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-11-23 14:50:51,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:51,887 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-23 14:50:51,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:50:51,888 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-11-23 14:50:51,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 14:50:51,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:51,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:51,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:50:51,890 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 14:50:51,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:51,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1705065466, now seen corresponding path program 1 times [2022-11-23 14:50:51,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:50:51,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036709458] [2022-11-23 14:50:51,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:51,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:50:51,965 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:50:51,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1334775548] [2022-11-23 14:50:51,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:51,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:50:51,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:50:51,978 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:50:51,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:50:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:50:52,160 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:50:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:50:52,230 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:50:52,231 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:50:52,233 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 14:50:52,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 14:50:52,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:52,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:50:52,452 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 14:50:52,457 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:50:52,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:50:52 BoogieIcfgContainer [2022-11-23 14:50:52,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:50:52,505 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:50:52,505 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:50:52,506 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:50:52,506 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:51" (3/4) ... [2022-11-23 14:50:52,510 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:50:52,510 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:50:52,511 INFO L158 Benchmark]: Toolchain (without parser) took 4283.18ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 96.6MB in the beginning and 85.0MB in the end (delta: 11.6MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. [2022-11-23 14:50:52,511 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory is still 76.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:50:52,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2370.89ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 96.6MB in the beginning and 75.0MB in the end (delta: 21.7MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2022-11-23 14:50:52,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.88ms. Allocated memory is still 167.8MB. Free memory was 75.0MB in the beginning and 71.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:50:52,513 INFO L158 Benchmark]: Boogie Preprocessor took 31.13ms. Allocated memory is still 167.8MB. Free memory was 71.8MB in the beginning and 69.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:50:52,514 INFO L158 Benchmark]: RCFGBuilder took 530.18ms. Allocated memory is still 167.8MB. Free memory was 69.7MB in the beginning and 121.7MB in the end (delta: -52.0MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2022-11-23 14:50:52,514 INFO L158 Benchmark]: TraceAbstraction took 1250.76ms. Allocated memory is still 167.8MB. Free memory was 120.7MB in the beginning and 85.0MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-23 14:50:52,514 INFO L158 Benchmark]: Witness Printer took 4.56ms. Allocated memory is still 167.8MB. Free memory is still 85.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:50:52,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory is still 76.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2370.89ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 96.6MB in the beginning and 75.0MB in the end (delta: 21.7MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.88ms. Allocated memory is still 167.8MB. Free memory was 75.0MB in the beginning and 71.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.13ms. Allocated memory is still 167.8MB. Free memory was 71.8MB in the beginning and 69.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 530.18ms. Allocated memory is still 167.8MB. Free memory was 69.7MB in the beginning and 121.7MB in the end (delta: -52.0MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1250.76ms. Allocated memory is still 167.8MB. Free memory was 120.7MB in the beginning and 85.0MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.56ms. Allocated memory is still 167.8MB. Free memory is still 85.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1851]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1840. 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); [L1859] CALL printLine("Calling bad()...") VAL [#in~line={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1859] RET printLine("Calling bad()...") VAL [#in~argv={28:26}, argc=27, argv={28:26}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=27] [L1860] CALL CWE190_Integer_Overflow__int_fgets_square_31_bad() [L1834] int data; [L1835] data = 0 [L1837] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1838] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1840] data = atoi(inputBuffer) [L1837] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1848] int dataCopy = data; [L1849] int data = dataCopy; VAL [data=-2147483648, data=-2147483648, dataCopy=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1851] data * data VAL [data=-2147483648, data=-2147483648, dataCopy=-2147483648, 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: 1851]: 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 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 14:50:52,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:50:55,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:50:55,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:50:55,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:50:55,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:50:55,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:50:55,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:50:55,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:50:55,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:50:55,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:50:55,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:50:55,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:50:55,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:50:55,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:50:55,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:50:55,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:50:55,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:50:55,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:50:55,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:50:55,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:50:55,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:50:55,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:50:55,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:50:55,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:50:55,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:50:55,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:50:55,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:50:55,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:50:55,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:50:55,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:50:55,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:50:55,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:50:55,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:50:55,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:50:55,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:50:55,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:50:55,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:50:55,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:50:55,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:50:55,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:50:55,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:50:55,347 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-23 14:50:55,392 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:50:55,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:50:55,393 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:50:55,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:50:55,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:50:55,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:50:55,396 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:50:55,396 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:50:55,396 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:50:55,396 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:50:55,398 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:50:55,398 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:50:55,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:50:55,399 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:50:55,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:50:55,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:50:55,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:50:55,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:50:55,400 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:50:55,400 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:50:55,401 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:50:55,401 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:50:55,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:50:55,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:50:55,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:50:55,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:50:55,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:50:55,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:50:55,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:50:55,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:50:55,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:50:55,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:50:55,404 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:50:55,404 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:50:55,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:50:55,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:50:55,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:50:55,405 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_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 [2022-11-23 14:50:55,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:50:55,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:50:55,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:50:55,863 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:50:55,864 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:50:55,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2022-11-23 14:50:59,083 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:50:59,548 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:50:59,548 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2022-11-23 14:50:59,586 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/data/746c176f0/45e2a13487844fd182418b8fee3eedcd/FLAGaffae53bb [2022-11-23 14:50:59,609 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/data/746c176f0/45e2a13487844fd182418b8fee3eedcd [2022-11-23 14:50:59,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:50:59,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:50:59,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:50:59,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:50:59,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:50:59,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:59" (1/1) ... [2022-11-23 14:50:59,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a378c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:59, skipping insertion in model container [2022-11-23 14:50:59,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:59" (1/1) ... [2022-11-23 14:50:59,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:50:59,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:51:00,350 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:51:01,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:51:01,867 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:51:01,902 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:51:02,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:51:02,223 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:51:02,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02 WrapperNode [2022-11-23 14:51:02,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:51:02,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:51:02,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:51:02,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:51:02,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2022-11-23 14:51:02,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2022-11-23 14:51:02,299 INFO L138 Inliner]: procedures = 943, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2022-11-23 14:51:02,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:51:02,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:51:02,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:51:02,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:51:02,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2022-11-23 14:51:02,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2022-11-23 14:51:02,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2022-11-23 14:51:02,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2022-11-23 14:51:02,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2022-11-23 14:51:02,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2022-11-23 14:51:02,365 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2022-11-23 14:51:02,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2022-11-23 14:51:02,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:51:02,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:51:02,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:51:02,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:51:02,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (1/1) ... [2022-11-23 14:51:02,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:51:02,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:51:02,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:51:02,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:51:02,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:51:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:51:02,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:51:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:51:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 14:51:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-23 14:51:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 14:51:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 14:51:02,479 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 14:51:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:51:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 14:51:02,673 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:51:02,675 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:51:06,203 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:51:06,209 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:51:06,210 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:51:06,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:06 BoogieIcfgContainer [2022-11-23 14:51:06,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:51:06,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:51:06,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:51:06,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:51:06,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:50:59" (1/3) ... [2022-11-23 14:51:06,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:51:06, skipping insertion in model container [2022-11-23 14:51:06,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:02" (2/3) ... [2022-11-23 14:51:06,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:51:06, skipping insertion in model container [2022-11-23 14:51:06,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:06" (3/3) ... [2022-11-23 14:51:06,227 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2022-11-23 14:51:06,248 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:51:06,248 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 14:51:06,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:51:06,319 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=FINITE_AUTOMATA, 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;@1d070cfa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:51:06,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 14:51:06,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:51:06,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 14:51:06,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:51:06,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:51:06,334 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 14:51:06,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:51:06,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2022-11-23 14:51:06,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:51:06,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722686336] [2022-11-23 14:51:06,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:51:06,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:51:06,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:51:06,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:51:06,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 14:51:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:51:06,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:51:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:51:06,783 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 14:51:06,786 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:51:06,788 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 14:51:06,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 14:51:06,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:51:07,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:51:07,006 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:51:07,015 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:51:07,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:51:07 BoogieIcfgContainer [2022-11-23 14:51:07,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:51:07,063 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:51:07,063 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:51:07,064 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:51:07,064 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:06" (3/4) ... [2022-11-23 14:51:07,068 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:51:07,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:51:07,070 INFO L158 Benchmark]: Toolchain (without parser) took 7449.70ms. Allocated memory was 65.0MB in the beginning and 98.6MB in the end (delta: 33.6MB). Free memory was 34.3MB in the beginning and 62.8MB in the end (delta: -28.5MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2022-11-23 14:51:07,070 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 65.0MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:51:07,071 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2599.88ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 34.1MB in the beginning and 38.4MB in the end (delta: -4.3MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2022-11-23 14:51:07,072 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.35ms. Allocated memory is still 81.8MB. Free memory was 38.4MB in the beginning and 34.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:51:07,072 INFO L158 Benchmark]: Boogie Preprocessor took 70.45ms. Allocated memory is still 81.8MB. Free memory was 34.2MB in the beginning and 32.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:51:07,073 INFO L158 Benchmark]: RCFGBuilder took 3840.81ms. Allocated memory is still 81.8MB. Free memory was 32.1MB in the beginning and 40.9MB in the end (delta: -8.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-11-23 14:51:07,074 INFO L158 Benchmark]: TraceAbstraction took 848.23ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 40.2MB in the beginning and 63.4MB in the end (delta: -23.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 14:51:07,074 INFO L158 Benchmark]: Witness Printer took 5.36ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 62.8MB in the end (delta: 605.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:51:07,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 65.0MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2599.88ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 34.1MB in the beginning and 38.4MB in the end (delta: -4.3MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.35ms. Allocated memory is still 81.8MB. Free memory was 38.4MB in the beginning and 34.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.45ms. Allocated memory is still 81.8MB. Free memory was 34.2MB in the beginning and 32.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3840.81ms. Allocated memory is still 81.8MB. Free memory was 32.1MB in the beginning and 40.9MB in the end (delta: -8.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * TraceAbstraction took 848.23ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 40.2MB in the beginning and 63.4MB in the end (delta: -23.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.36ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 62.8MB in the end (delta: 605.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1851]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1840. 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] [L1859] CALL printLine("Calling bad()...") VAL [#in~line={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1859] RET printLine("Calling bad()...") VAL [#in~argv={13:12}, argc=12, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=12] [L1860] CALL CWE190_Integer_Overflow__int_fgets_square_31_bad() [L1834] int data; [L1835] data = 0 [L1837] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1838] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1840] data = atoi(inputBuffer) [L1837] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1848] int dataCopy = data; [L1849] int data = dataCopy; VAL [data=-2147483648, data=-2147483648, dataCopy=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1851] data * data VAL [data=-2147483648, data=-2147483648, dataCopy=-2147483648, 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: 1851]: 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 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 14:51:07,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be9ef66-56bf-49b7-9de1-2eed7f8ec3ab/bin/utaipan-Q6hlc19bkW/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: UNKNOWN: Overapproximated counterexample