./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_68_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh --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 e9da321aa09d7ac0f798eec1a2413e44aa04ab408238a67d79bcb6c20caef6e3 --- 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-2329fc7 [2022-12-14 07:28:23,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:28:23,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:28:23,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:28:23,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:28:23,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:28:23,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:28:23,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:28:23,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:28:23,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:28:23,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:28:23,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:28:23,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:28:23,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:28:23,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:28:23,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:28:23,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:28:23,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:28:23,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:28:23,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:28:23,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:28:23,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:28:23,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:28:23,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:28:23,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:28:23,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:28:23,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:28:23,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:28:23,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:28:23,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:28:23,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:28:23,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:28:23,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:28:23,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:28:23,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:28:23,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:28:23,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:28:23,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:28:23,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:28:23,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:28:23,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:28:23,174 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 07:28:23,188 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:28:23,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:28:23,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:28:23,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:28:23,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:28:23,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:28:23,189 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:28:23,189 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:28:23,189 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:28:23,189 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:28:23,189 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:28:23,189 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:28:23,189 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:28:23,189 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:28:23,189 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:28:23,190 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:28:23,190 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:28:23,190 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:28:23,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:28:23,190 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:28:23,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:28:23,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:28:23,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:28:23,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:28:23,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:28:23,191 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 07:28:23,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:28:23,191 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:28:23,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:28:23,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:28:23,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:28:23,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:28:23,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:28:23,192 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:28:23,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:28:23,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:28:23,192 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:28:23,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:28:23,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:28:23,192 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:28:23,192 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_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9da321aa09d7ac0f798eec1a2413e44aa04ab408238a67d79bcb6c20caef6e3 [2022-12-14 07:28:23,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:28:23,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:28:23,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:28:23,386 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:28:23,386 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:28:23,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_68_bad.i [2022-12-14 07:28:26,031 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:28:26,298 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:28:26,299 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_68_bad.i [2022-12-14 07:28:26,316 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/data/4b3826cbb/09ce0f5cfbfe4b3e81c87ff2be5bbbe9/FLAG96bfb2f4e [2022-12-14 07:28:26,327 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/data/4b3826cbb/09ce0f5cfbfe4b3e81c87ff2be5bbbe9 [2022-12-14 07:28:26,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:28:26,331 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:28:26,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:28:26,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:28:26,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:28:26,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:28:26" (1/1) ... [2022-12-14 07:28:26,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:26, skipping insertion in model container [2022-12-14 07:28:26,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:28:26" (1/1) ... [2022-12-14 07:28:26,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:28:26,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:28:26,654 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:28:26,983 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:28:26,988 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:28:26,990 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:28:26,992 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:28:26,993 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:28:27,011 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 07:28:27,014 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 07:28:27,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:28:27,025 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:28:27,042 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:28:27,080 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:28:27,082 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:28:27,082 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:28:27,084 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:28:27,084 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:28:27,087 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 07:28:27,089 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 07:28:27,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:28:27,220 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:28:27,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:27 WrapperNode [2022-12-14 07:28:27,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:28:27,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:28:27,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:28:27,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:28:27,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:27" (1/1) ... [2022-12-14 07:28:27,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:27" (1/1) ... [2022-12-14 07:28:27,272 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-14 07:28:27,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:28:27,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:28:27,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:28:27,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:28:27,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:27" (1/1) ... [2022-12-14 07:28:27,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:27" (1/1) ... [2022-12-14 07:28:27,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:27" (1/1) ... [2022-12-14 07:28:27,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:27" (1/1) ... [2022-12-14 07:28:27,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:27" (1/1) ... [2022-12-14 07:28:27,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:27" (1/1) ... [2022-12-14 07:28:27,289 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:27" (1/1) ... [2022-12-14 07:28:27,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:27" (1/1) ... [2022-12-14 07:28:27,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:28:27,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:28:27,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:28:27,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:28:27,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:27" (1/1) ... [2022-12-14 07:28:27,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:28:27,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:28:27,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:28:27,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:28:27,346 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 07:28:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 07:28:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 07:28:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:28:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 07:28:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:28:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:28:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:28:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:28:27,348 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 07:28:27,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:28:27,462 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:28:27,463 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:28:27,561 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:28:27,586 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:28:27,586 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:28:27,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:28:27 BoogieIcfgContainer [2022-12-14 07:28:27,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:28:27,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:28:27,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:28:27,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:28:27,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:28:26" (1/3) ... [2022-12-14 07:28:27,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70514299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:28:27, skipping insertion in model container [2022-12-14 07:28:27,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:27" (2/3) ... [2022-12-14 07:28:27,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70514299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:28:27, skipping insertion in model container [2022-12-14 07:28:27,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:28:27" (3/3) ... [2022-12-14 07:28:27,595 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_68_bad.i [2022-12-14 07:28:27,609 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:28:27,609 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 07:28:27,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:28:27,648 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;@5206a597, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:28:27,648 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 07:28:27,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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) [2022-12-14 07:28:27,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 07:28:27,657 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:28:27,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:28:27,658 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 07:28:27,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:28:27,661 INFO L85 PathProgramCache]: Analyzing trace with hash -39611802, now seen corresponding path program 1 times [2022-12-14 07:28:27,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:28:27,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498334364] [2022-12-14 07:28:27,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:28:27,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:28:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:28:27,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:28:27,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:28:27,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498334364] [2022-12-14 07:28:27,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498334364] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:28:27,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:28:27,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:28:27,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344839923] [2022-12-14 07:28:27,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:28:27,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:28:27,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:28:27,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:28:27,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:28:27,880 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 07:28:27,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:28:27,915 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-12-14 07:28:27,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:28:27,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-12-14 07:28:27,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:28:27,921 INFO L225 Difference]: With dead ends: 21 [2022-12-14 07:28:27,921 INFO L226 Difference]: Without dead ends: 12 [2022-12-14 07:28:27,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:28:27,927 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:28:27,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 24 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:28:27,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-14 07:28:27,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-14 07:28:27,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 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) [2022-12-14 07:28:27,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-12-14 07:28:27,957 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2022-12-14 07:28:27,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:28:27,959 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-12-14 07:28:27,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 07:28:27,959 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-14 07:28:27,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 07:28:27,960 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:28:27,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:28:27,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:28:27,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 07:28:27,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:28:27,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1227965805, now seen corresponding path program 1 times [2022-12-14 07:28:27,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:28:27,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641663531] [2022-12-14 07:28:27,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:28:27,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:28:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:28:28,002 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 07:28:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:28:28,030 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 07:28:28,030 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 07:28:28,032 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 07:28:28,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 07:28:28,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:28:28,036 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 07:28:28,039 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:28:28,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:28:28 BoogieIcfgContainer [2022-12-14 07:28:28,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:28:28,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:28:28,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:28:28,055 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:28:28,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:28:27" (3/4) ... [2022-12-14 07:28:28,058 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 07:28:28,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:28:28,059 INFO L158 Benchmark]: Toolchain (without parser) took 1727.78ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 121.7MB in the beginning and 112.2MB in the end (delta: 9.5MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2022-12-14 07:28:28,059 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 161.5MB. Free memory is still 132.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:28:28,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 888.56ms. Allocated memory is still 161.5MB. Free memory was 121.7MB in the beginning and 127.8MB in the end (delta: -6.1MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2022-12-14 07:28:28,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.34ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 127.8MB in the beginning and 162.5MB in the end (delta: -34.8MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-12-14 07:28:28,060 INFO L158 Benchmark]: Boogie Preprocessor took 18.58ms. Allocated memory is still 195.0MB. Free memory was 162.5MB in the beginning and 161.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:28:28,060 INFO L158 Benchmark]: RCFGBuilder took 295.71ms. Allocated memory is still 195.0MB. Free memory was 161.4MB in the beginning and 145.8MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 07:28:28,061 INFO L158 Benchmark]: TraceAbstraction took 465.06ms. Allocated memory is still 195.0MB. Free memory was 145.8MB in the beginning and 112.2MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-14 07:28:28,061 INFO L158 Benchmark]: Witness Printer took 2.95ms. Allocated memory is still 195.0MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:28:28,064 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 161.5MB. Free memory is still 132.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 888.56ms. Allocated memory is still 161.5MB. Free memory was 121.7MB in the beginning and 127.8MB in the end (delta: -6.1MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.34ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 127.8MB in the beginning and 162.5MB in the end (delta: -34.8MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.58ms. Allocated memory is still 195.0MB. Free memory was 162.5MB in the beginning and 161.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 295.71ms. Allocated memory is still 195.0MB. Free memory was 161.4MB in the beginning and 145.8MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 465.06ms. Allocated memory is still 195.0MB. Free memory was 145.8MB in the beginning and 112.2MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 2.95ms. Allocated memory is still 195.0MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1586]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1550] int CWE190_Integer_Overflow__int_fgets_multiply_68_goodB2GData; [L1573] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_multiply_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1573] RET printLine("Calling bad()...") VAL [\old(argc)=1073741826, argc=1073741826, argv={1073741829:1073741827}, argv={1073741829:1073741827}, CWE190_Integer_Overflow__int_fgets_multiply_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE190_Integer_Overflow__int_fgets_multiply_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1567] CWE190_Integer_Overflow__int_fgets_multiply_68_badData = data [L1568] CALL CWE190_Integer_Overflow__int_fgets_multiply_68b_badSink() [L1583] int data = CWE190_Integer_Overflow__int_fgets_multiply_68_badData; VAL [CWE190_Integer_Overflow__int_fgets_multiply_68_badData=1073741824, CWE190_Integer_Overflow__int_fgets_multiply_68_goodB2GData=0, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1584] COND TRUE data > 0 VAL [CWE190_Integer_Overflow__int_fgets_multiply_68_badData=1073741824, CWE190_Integer_Overflow__int_fgets_multiply_68_goodB2GData=0, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1586] data * 2 VAL [CWE190_Integer_Overflow__int_fgets_multiply_68_badData=1073741824, CWE190_Integer_Overflow__int_fgets_multiply_68_goodB2GData=0, data=1073741824, 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: 1586]: 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2022-12-14 07:28:28,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh --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 e9da321aa09d7ac0f798eec1a2413e44aa04ab408238a67d79bcb6c20caef6e3 --- 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-2329fc7 [2022-12-14 07:28:29,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:28:29,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:28:29,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:28:29,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:28:29,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:28:29,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:28:29,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:28:29,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:28:29,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:28:29,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:28:29,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:28:29,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:28:29,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:28:29,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:28:29,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:28:29,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:28:29,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:28:29,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:28:29,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:28:29,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:28:29,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:28:29,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:28:29,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:28:29,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:28:29,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:28:29,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:28:29,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:28:29,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:28:29,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:28:29,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:28:29,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:28:29,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:28:29,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:28:29,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:28:29,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:28:29,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:28:29,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:28:29,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:28:29,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:28:29,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:28:29,987 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 07:28:30,009 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:28:30,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:28:30,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:28:30,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:28:30,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:28:30,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:28:30,011 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:28:30,011 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:28:30,012 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:28:30,012 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:28:30,012 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:28:30,012 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:28:30,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:28:30,013 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:28:30,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:28:30,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:28:30,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:28:30,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:28:30,013 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:28:30,013 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 07:28:30,013 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 07:28:30,014 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 07:28:30,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:28:30,014 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:28:30,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:28:30,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:28:30,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 07:28:30,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:28:30,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:28:30,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:28:30,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:28:30,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:28:30,016 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 07:28:30,016 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 07:28:30,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:28:30,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:28:30,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 07:28:30,017 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_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9da321aa09d7ac0f798eec1a2413e44aa04ab408238a67d79bcb6c20caef6e3 [2022-12-14 07:28:30,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:28:30,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:28:30,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:28:30,285 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:28:30,285 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:28:30,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_68_bad.i [2022-12-14 07:28:32,830 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:28:33,078 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:28:33,078 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_68_bad.i [2022-12-14 07:28:33,090 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/data/a35f6bfce/569e99cc672349119ae61ddf20d13905/FLAGad953dfb1 [2022-12-14 07:28:33,104 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/data/a35f6bfce/569e99cc672349119ae61ddf20d13905 [2022-12-14 07:28:33,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:28:33,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:28:33,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:28:33,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:28:33,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:28:33,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:28:33" (1/1) ... [2022-12-14 07:28:33,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756989da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:33, skipping insertion in model container [2022-12-14 07:28:33,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:28:33" (1/1) ... [2022-12-14 07:28:33,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:28:33,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:28:33,412 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:28:33,764 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:28:33,768 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:28:33,769 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:28:33,771 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:28:33,771 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:28:33,784 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 07:28:33,786 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 07:28:33,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:28:33,799 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:28:33,813 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:28:33,844 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:28:33,845 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:28:33,846 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:28:33,848 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:28:33,848 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:28:33,851 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 07:28:33,852 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 07:28:33,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:28:33,983 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:28:33,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:33 WrapperNode [2022-12-14 07:28:33,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:28:33,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:28:33,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:28:33,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:28:33,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:33" (1/1) ... [2022-12-14 07:28:34,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:33" (1/1) ... [2022-12-14 07:28:34,043 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-14 07:28:34,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:28:34,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:28:34,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:28:34,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:28:34,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:33" (1/1) ... [2022-12-14 07:28:34,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:33" (1/1) ... [2022-12-14 07:28:34,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:33" (1/1) ... [2022-12-14 07:28:34,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:33" (1/1) ... [2022-12-14 07:28:34,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:33" (1/1) ... [2022-12-14 07:28:34,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:33" (1/1) ... [2022-12-14 07:28:34,072 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:33" (1/1) ... [2022-12-14 07:28:34,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:33" (1/1) ... [2022-12-14 07:28:34,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:28:34,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:28:34,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:28:34,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:28:34,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:33" (1/1) ... [2022-12-14 07:28:34,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:28:34,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:28:34,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:28:34,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:28:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 07:28:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 07:28:34,132 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 07:28:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:28:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 07:28:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:28:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:28:34,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:28:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:28:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 07:28:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 07:28:34,253 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:28:34,254 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:28:34,370 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:28:34,374 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:28:34,374 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:28:34,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:28:34 BoogieIcfgContainer [2022-12-14 07:28:34,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:28:34,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:28:34,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:28:34,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:28:34,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:28:33" (1/3) ... [2022-12-14 07:28:34,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50925897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:28:34, skipping insertion in model container [2022-12-14 07:28:34,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:28:33" (2/3) ... [2022-12-14 07:28:34,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50925897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:28:34, skipping insertion in model container [2022-12-14 07:28:34,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:28:34" (3/3) ... [2022-12-14 07:28:34,382 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_68_bad.i [2022-12-14 07:28:34,395 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:28:34,395 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 07:28:34,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:28:34,434 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;@55f8d1f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:28:34,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 07:28:34,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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) [2022-12-14 07:28:34,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 07:28:34,445 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:28:34,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:28:34,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 07:28:34,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:28:34,451 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-12-14 07:28:34,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:28:34,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014947058] [2022-12-14 07:28:34,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:28:34,464 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 [2022-12-14 07:28:34,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:28:34,466 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:28:34,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:28:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:28:34,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:28:34,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:28:34,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:28:34,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:28:34,617 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:28:34,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014947058] [2022-12-14 07:28:34,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2014947058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:28:34,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:28:34,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:28:34,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843077731] [2022-12-14 07:28:34,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:28:34,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:28:34,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:28:34,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:28:34,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:28:34,656 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-12-14 07:28:34,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:28:34,692 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-12-14 07:28:34,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:28:34,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2022-12-14 07:28:34,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:28:34,700 INFO L225 Difference]: With dead ends: 31 [2022-12-14 07:28:34,700 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 07:28:34,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:28:34,705 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 9 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:28:34,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 49 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:28:34,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 07:28:34,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 07:28:34,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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) [2022-12-14 07:28:34,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-14 07:28:34,730 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-14 07:28:34,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:28:34,731 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-14 07:28:34,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-12-14 07:28:34,732 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-14 07:28:34,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 07:28:34,733 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:28:34,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:28:34,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:28:34,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:28:34,934 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 07:28:34,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:28:34,935 INFO L85 PathProgramCache]: Analyzing trace with hash -761705229, now seen corresponding path program 1 times [2022-12-14 07:28:34,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:28:34,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979299916] [2022-12-14 07:28:34,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:28:34,936 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 [2022-12-14 07:28:34,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:28:34,937 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:28:34,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/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 (3)] Waiting until timeout for monitored process [2022-12-14 07:28:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:28:35,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 07:28:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:28:35,063 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 07:28:35,063 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 07:28:35,065 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 07:28:35,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 07:28:35,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/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 (3)] Ended with exit code 0 [2022-12-14 07:28:35,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:28:35,270 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 07:28:35,273 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:28:35,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:28:35 BoogieIcfgContainer [2022-12-14 07:28:35,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:28:35,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:28:35,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:28:35,304 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:28:35,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:28:34" (3/4) ... [2022-12-14 07:28:35,311 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 07:28:35,312 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:28:35,312 INFO L158 Benchmark]: Toolchain (without parser) took 2204.94ms. Allocated memory is still 77.6MB. Free memory was 55.1MB in the beginning and 49.4MB in the end (delta: 5.7MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2022-12-14 07:28:35,313 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 34.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:28:35,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 876.15ms. Allocated memory is still 77.6MB. Free memory was 54.9MB in the beginning and 45.3MB in the end (delta: 9.5MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-12-14 07:28:35,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.47ms. Allocated memory is still 77.6MB. Free memory was 45.3MB in the beginning and 42.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:28:35,314 INFO L158 Benchmark]: Boogie Preprocessor took 35.15ms. Allocated memory is still 77.6MB. Free memory was 42.1MB in the beginning and 40.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:28:35,315 INFO L158 Benchmark]: RCFGBuilder took 295.49ms. Allocated memory is still 77.6MB. Free memory was 40.1MB in the beginning and 45.5MB in the end (delta: -5.4MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2022-12-14 07:28:35,315 INFO L158 Benchmark]: TraceAbstraction took 925.76ms. Allocated memory is still 77.6MB. Free memory was 45.1MB in the beginning and 34.7MB in the end (delta: 10.4MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2022-12-14 07:28:35,316 INFO L158 Benchmark]: Witness Printer took 8.34ms. Allocated memory is still 77.6MB. Free memory was 34.7MB in the beginning and 49.4MB in the end (delta: -14.7MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-12-14 07:28:35,319 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 34.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 876.15ms. Allocated memory is still 77.6MB. Free memory was 54.9MB in the beginning and 45.3MB in the end (delta: 9.5MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.47ms. Allocated memory is still 77.6MB. Free memory was 45.3MB in the beginning and 42.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.15ms. Allocated memory is still 77.6MB. Free memory was 42.1MB in the beginning and 40.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 295.49ms. Allocated memory is still 77.6MB. Free memory was 40.1MB in the beginning and 45.5MB in the end (delta: -5.4MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * TraceAbstraction took 925.76ms. Allocated memory is still 77.6MB. Free memory was 45.1MB in the beginning and 34.7MB in the end (delta: 10.4MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Witness Printer took 8.34ms. Allocated memory is still 77.6MB. Free memory was 34.7MB in the beginning and 49.4MB in the end (delta: -14.7MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1586]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1549] int CWE190_Integer_Overflow__int_fgets_multiply_68_goodG2BData; [L1550] int CWE190_Integer_Overflow__int_fgets_multiply_68_goodB2GData; VAL [CWE190_Integer_Overflow__int_fgets_multiply_68_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_multiply_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_multiply_68_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_multiply_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1573] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE190_Integer_Overflow__int_fgets_multiply_68_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_multiply_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE190_Integer_Overflow__int_fgets_multiply_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1567] CWE190_Integer_Overflow__int_fgets_multiply_68_badData = data [L1568] CALL CWE190_Integer_Overflow__int_fgets_multiply_68b_badSink() [L1583] int data = CWE190_Integer_Overflow__int_fgets_multiply_68_badData; VAL [CWE190_Integer_Overflow__int_fgets_multiply_68_badData=1073741824, CWE190_Integer_Overflow__int_fgets_multiply_68_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_multiply_68_goodG2BData=0, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1584] COND TRUE data > 0 VAL [CWE190_Integer_Overflow__int_fgets_multiply_68_badData=1073741824, CWE190_Integer_Overflow__int_fgets_multiply_68_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_multiply_68_goodG2BData=0, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1586] data * 2 VAL [CWE190_Integer_Overflow__int_fgets_multiply_68_badData=1073741824, CWE190_Integer_Overflow__int_fgets_multiply_68_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_multiply_68_goodG2BData=0, data=1073741824, 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: 1586]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 28 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 2 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 [2022-12-14 07:28:35,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3820ab03-e4e8-4c3b-bed1-af2a68b2013a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample