./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_08_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur --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 fcd190a52ccd43c1f3ac60cf6c7cda3b55d06758d8155c0f8c9285abfe231494 --- 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-38b53e6 [2022-11-26 00:35:22,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:35:22,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:35:22,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:35:22,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:35:22,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:35:22,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:35:22,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:35:22,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:35:22,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:35:22,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:35:22,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:35:22,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:35:22,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:35:22,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:35:22,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:35:22,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:35:22,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:35:22,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:35:22,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:35:22,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:35:22,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:35:22,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:35:22,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:35:22,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:35:22,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:35:22,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:35:22,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:35:22,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:35:22,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:35:22,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:35:22,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:35:22,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:35:22,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:35:22,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:35:22,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:35:22,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:35:22,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:35:22,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:35:22,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:35:22,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:35:22,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:35:22,263 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:35:22,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:35:22,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:35:22,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:35:22,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:35:22,265 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:35:22,266 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:35:22,266 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:35:22,266 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:35:22,266 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:35:22,267 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:35:22,267 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:35:22,267 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:35:22,267 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:35:22,268 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:35:22,268 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:35:22,268 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:35:22,268 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:35:22,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:35:22,269 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:35:22,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:35:22,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:35:22,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:35:22,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:35:22,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:35:22,271 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:35:22,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:35:22,271 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:35:22,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:35:22,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:35:22,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:35:22,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:35:22,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:35:22,273 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:35:22,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:35:22,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:35:22,274 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:35:22,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:35:22,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:35:22,274 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:35:22,275 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_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcd190a52ccd43c1f3ac60cf6c7cda3b55d06758d8155c0f8c9285abfe231494 [2022-11-26 00:35:22,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:35:22,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:35:22,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:35:22,621 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:35:22,622 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:35:22,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_08_bad.i [2022-11-26 00:35:25,819 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:35:26,175 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:35:26,178 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_08_bad.i [2022-11-26 00:35:26,208 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/data/2e4ba053c/ae9a3b42170541e881b8e4fd0993f68e/FLAG27cbb2643 [2022-11-26 00:35:26,230 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/data/2e4ba053c/ae9a3b42170541e881b8e4fd0993f68e [2022-11-26 00:35:26,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:35:26,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:35:26,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:35:26,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:35:26,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:35:26,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:35:26" (1/1) ... [2022-11-26 00:35:26,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56d41f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:26, skipping insertion in model container [2022-11-26 00:35:26,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:35:26" (1/1) ... [2022-11-26 00:35:26,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:35:26,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:35:26,698 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:35:27,212 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:35:27,218 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:35:27,224 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:35:27,234 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:35:27,236 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:35:27,279 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:35:27,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:35:27,297 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:35:27,332 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:35:27,390 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:35:27,391 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:35:27,393 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:35:27,395 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:35:27,396 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:35:27,400 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:35:27,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:35:27,568 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:35:27,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:27 WrapperNode [2022-11-26 00:35:27,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:35:27,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:35:27,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:35:27,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:35:27,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:27" (1/1) ... [2022-11-26 00:35:27,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:27" (1/1) ... [2022-11-26 00:35:27,650 INFO L138 Inliner]: procedures = 501, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-11-26 00:35:27,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:35:27,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:35:27,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:35:27,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:35:27,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:27" (1/1) ... [2022-11-26 00:35:27,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:27" (1/1) ... [2022-11-26 00:35:27,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:27" (1/1) ... [2022-11-26 00:35:27,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:27" (1/1) ... [2022-11-26 00:35:27,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:27" (1/1) ... [2022-11-26 00:35:27,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:27" (1/1) ... [2022-11-26 00:35:27,674 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:27" (1/1) ... [2022-11-26 00:35:27,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:27" (1/1) ... [2022-11-26 00:35:27,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:35:27,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:35:27,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:35:27,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:35:27,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:27" (1/1) ... [2022-11-26 00:35:27,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:35:27,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:35:27,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:35:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:35:27,753 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:35:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:35:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:35:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:35:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:35:27,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:35:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-11-26 00:35:27,754 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-11-26 00:35:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:35:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:35:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:35:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:35:27,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:35:27,895 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:35:27,897 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:35:28,059 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:35:28,109 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:35:28,109 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:35:28,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:35:28 BoogieIcfgContainer [2022-11-26 00:35:28,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:35:28,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:35:28,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:35:28,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:35:28,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:35:26" (1/3) ... [2022-11-26 00:35:28,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78bd22c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:35:28, skipping insertion in model container [2022-11-26 00:35:28,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:27" (2/3) ... [2022-11-26 00:35:28,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78bd22c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:35:28, skipping insertion in model container [2022-11-26 00:35:28,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:35:28" (3/3) ... [2022-11-26 00:35:28,122 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_multiply_08_bad.i [2022-11-26 00:35:28,141 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:35:28,141 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:35:28,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:35:28,194 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;@6d281c5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:35:28,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:35:28,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-26 00:35:28,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:35:28,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:28,207 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:35:28,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:35:28,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:28,216 INFO L85 PathProgramCache]: Analyzing trace with hash -598215814, now seen corresponding path program 1 times [2022-11-26 00:35:28,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:28,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383165577] [2022-11-26 00:35:28,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:28,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:35:28,442 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:35:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:35:28,504 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:35:28,507 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:35:28,508 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:35:28,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:35:28,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:35:28,515 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:35:28,521 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:35:28,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:35:28 BoogieIcfgContainer [2022-11-26 00:35:28,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:35:28,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:35:28,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:35:28,569 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:35:28,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:35:28" (3/4) ... [2022-11-26 00:35:28,572 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 00:35:28,621 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:35:28,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:35:28,622 INFO L158 Benchmark]: Toolchain (without parser) took 2387.38ms. Allocated memory is still 184.5MB. Free memory was 136.7MB in the beginning and 80.3MB in the end (delta: 56.4MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2022-11-26 00:35:28,623 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 134.2MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:35:28,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1329.97ms. Allocated memory is still 184.5MB. Free memory was 136.7MB in the beginning and 121.3MB in the end (delta: 15.5MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2022-11-26 00:35:28,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.33ms. Allocated memory is still 184.5MB. Free memory was 121.3MB in the beginning and 118.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:35:28,625 INFO L158 Benchmark]: Boogie Preprocessor took 26.71ms. Allocated memory is still 184.5MB. Free memory was 118.1MB in the beginning and 117.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:35:28,625 INFO L158 Benchmark]: RCFGBuilder took 433.98ms. Allocated memory is still 184.5MB. Free memory was 117.1MB in the beginning and 101.3MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:35:28,626 INFO L158 Benchmark]: TraceAbstraction took 453.36ms. Allocated memory is still 184.5MB. Free memory was 101.3MB in the beginning and 82.5MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:35:28,626 INFO L158 Benchmark]: Witness Printer took 52.33ms. Allocated memory is still 184.5MB. Free memory was 82.5MB in the beginning and 80.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:35:28,630 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 134.2MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1329.97ms. Allocated memory is still 184.5MB. Free memory was 136.7MB in the beginning and 121.3MB in the end (delta: 15.5MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.33ms. Allocated memory is still 184.5MB. Free memory was 121.3MB in the beginning and 118.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.71ms. Allocated memory is still 184.5MB. Free memory was 118.1MB in the beginning and 117.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 433.98ms. Allocated memory is still 184.5MB. Free memory was 117.1MB in the beginning and 101.3MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 453.36ms. Allocated memory is still 184.5MB. Free memory was 101.3MB in the beginning and 82.5MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 52.33ms. Allocated memory is still 184.5MB. Free memory was 82.5MB in the beginning and 80.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1568]: integer overflow possible integer overflow possible We found a 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); [L1576] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [\old(argc)=1073741826, argc=1073741826, argv={1073741828:1073741827}, argv={1073741828:1073741827}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fscanf_multiply_08_bad() [L1558] int data; [L1559] data = 0 VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1560] RET staticReturnsTrue() VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1560] COND TRUE staticReturnsTrue() [L1564] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1564] RET staticReturnsTrue() VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1564] COND TRUE staticReturnsTrue() [L1566] EXPR \read(data) VAL [\read(data)=-1073741825, data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE data < 0 [L1568] EXPR \read(data) VAL [\read(data)=-1073741825, data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] data * 2 VAL [\read(data)=-1073741825, data={5:0}, 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: 1568]: 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 3 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 2, 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=21occurred 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, 16 NumberOfCodeBlocks, 16 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 proved your program to be incorrect! [2022-11-26 00:35:28,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23650e3-be46-4253-92c0-a202185ba7dc/bin/utaipan-ByfvJB40ur/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)