./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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_49d69d1d-ac6e-416a-b17e-06b97e063832/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 79bd2f28b0c8250720f246576bcad7103ec15cb40088dde318a597c1fb712894 --- 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 13:46:50,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:46:50,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:46:50,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:46:50,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:46:50,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:46:50,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:46:50,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:46:50,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:46:50,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:46:50,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:46:50,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:46:50,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:46:50,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:46:50,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:46:50,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:46:50,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:46:50,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:46:50,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:46:50,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:46:50,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:46:50,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:46:50,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:46:50,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:46:50,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:46:50,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:46:50,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:46:50,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:46:50,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:46:50,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:46:50,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:46:50,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:46:50,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:46:50,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:46:50,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:46:50,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:46:50,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:46:50,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:46:50,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:46:50,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:46:50,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:46:50,374 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 13:46:50,387 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:46:50,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:46:50,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:46:50,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:46:50,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:46:50,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:46:50,388 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:46:50,388 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:46:50,388 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:46:50,388 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:46:50,389 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:46:50,389 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:46:50,389 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:46:50,389 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:46:50,389 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:46:50,389 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:46:50,389 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:46:50,389 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:46:50,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:46:50,390 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:46:50,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:46:50,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:46:50,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:46:50,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:46:50,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:46:50,390 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:46:50,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:46:50,390 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:46:50,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:46:50,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:46:50,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:46:50,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:46:50,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:46:50,391 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:46:50,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:46:50,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:46:50,391 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:46:50,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:46:50,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:46:50,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:46:50,392 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_49d69d1d-ac6e-416a-b17e-06b97e063832/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79bd2f28b0c8250720f246576bcad7103ec15cb40088dde318a597c1fb712894 [2022-12-14 13:46:50,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:46:50,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:46:50,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:46:50,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:46:50,610 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:46:50,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i [2022-12-14 13:46:53,223 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:46:53,439 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:46:53,439 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i [2022-12-14 13:46:53,451 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/data/200ace5cc/f0f311eeb18d4af8b38492a4d7a7ce0d/FLAGd8afa588a [2022-12-14 13:46:53,462 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/data/200ace5cc/f0f311eeb18d4af8b38492a4d7a7ce0d [2022-12-14 13:46:53,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:46:53,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:46:53,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:46:53,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:46:53,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:46:53,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:46:53" (1/1) ... [2022-12-14 13:46:53,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d152512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:53, skipping insertion in model container [2022-12-14 13:46:53,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:46:53" (1/1) ... [2022-12-14 13:46:53,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:46:53,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:46:53,750 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:46:54,064 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:46:54,068 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:46:54,069 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:46:54,071 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:46:54,072 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:46:54,089 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:46:54,093 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:46:54,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:46:54,113 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:46:54,130 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:46:54,165 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:46:54,166 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:46:54,167 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:46:54,168 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:46:54,169 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:46:54,172 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:46:54,173 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:46:54,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:46:54,239 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:46:54,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:54 WrapperNode [2022-12-14 13:46:54,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:46:54,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:46:54,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:46:54,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:46:54,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:54" (1/1) ... [2022-12-14 13:46:54,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:54" (1/1) ... [2022-12-14 13:46:54,277 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-12-14 13:46:54,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:46:54,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:46:54,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:46:54,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:46:54,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:54" (1/1) ... [2022-12-14 13:46:54,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:54" (1/1) ... [2022-12-14 13:46:54,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:54" (1/1) ... [2022-12-14 13:46:54,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:54" (1/1) ... [2022-12-14 13:46:54,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:54" (1/1) ... [2022-12-14 13:46:54,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:54" (1/1) ... [2022-12-14 13:46:54,293 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:54" (1/1) ... [2022-12-14 13:46:54,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:54" (1/1) ... [2022-12-14 13:46:54,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:46:54,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:46:54,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:46:54,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:46:54,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:54" (1/1) ... [2022-12-14 13:46:54,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:46:54,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:46:54,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:46:54,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:46:54,352 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 13:46:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 13:46:54,353 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 13:46:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:46:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 13:46:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:46:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:46:54,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:46:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:46:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 13:46:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:46:54,452 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:46:54,454 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:46:54,567 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:46:54,591 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:46:54,592 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:46:54,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:46:54 BoogieIcfgContainer [2022-12-14 13:46:54,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:46:54,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:46:54,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:46:54,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:46:54,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:46:53" (1/3) ... [2022-12-14 13:46:54,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38fd6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:46:54, skipping insertion in model container [2022-12-14 13:46:54,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:54" (2/3) ... [2022-12-14 13:46:54,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38fd6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:46:54, skipping insertion in model container [2022-12-14 13:46:54,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:46:54" (3/3) ... [2022-12-14 13:46:54,599 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i [2022-12-14 13:46:54,613 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:46:54,613 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:46:54,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:46:54,653 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;@2a785f5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:46:54,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:46:54,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 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 13:46:54,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 13:46:54,662 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:46:54,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:46:54,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:46:54,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:46:54,667 INFO L85 PathProgramCache]: Analyzing trace with hash -970101220, now seen corresponding path program 1 times [2022-12-14 13:46:54,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:46:54,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108856788] [2022-12-14 13:46:54,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:46:54,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:46:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:46:54,826 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 13:46:54,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:46:54,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108856788] [2022-12-14 13:46:54,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108856788] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:46:54,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:46:54,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:46:54,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752060809] [2022-12-14 13:46:54,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:46:54,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:46:54,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:46:54,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:46:54,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:46:54,856 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 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, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:46:54,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:46:54,887 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-12-14 13:46:54,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:46:54,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-12-14 13:46:54,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:46:54,894 INFO L225 Difference]: With dead ends: 29 [2022-12-14 13:46:54,894 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 13:46:54,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 13:46:54,898 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:46:54,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 14 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:46:54,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 13:46:54,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 13:46:54,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 11 states have internal predecessors, (11), 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 13:46:54,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-14 13:46:54,924 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 8 [2022-12-14 13:46:54,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:46:54,925 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-14 13:46:54,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:46:54,925 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-14 13:46:54,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 13:46:54,926 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:46:54,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:46:54,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:46:54,927 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:46:54,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:46:54,927 INFO L85 PathProgramCache]: Analyzing trace with hash -268937897, now seen corresponding path program 1 times [2022-12-14 13:46:54,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:46:54,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177354882] [2022-12-14 13:46:54,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:46:54,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:46:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:46:55,027 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 13:46:55,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:46:55,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177354882] [2022-12-14 13:46:55,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177354882] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:46:55,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:46:55,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:46:55,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932032874] [2022-12-14 13:46:55,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:46:55,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:46:55,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:46:55,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:46:55,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:46:55,031 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:46:55,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:46:55,043 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-12-14 13:46:55,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:46:55,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-12-14 13:46:55,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:46:55,044 INFO L225 Difference]: With dead ends: 14 [2022-12-14 13:46:55,044 INFO L226 Difference]: Without dead ends: 13 [2022-12-14 13:46:55,045 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 13:46:55,046 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:46:55,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:46:55,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-14 13:46:55,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-14 13:46:55,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 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 13:46:55,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-12-14 13:46:55,050 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2022-12-14 13:46:55,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:46:55,051 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-12-14 13:46:55,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:46:55,051 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-12-14 13:46:55,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 13:46:55,051 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:46:55,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:46:55,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:46:55,052 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:46:55,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:46:55,053 INFO L85 PathProgramCache]: Analyzing trace with hash 252859848, now seen corresponding path program 1 times [2022-12-14 13:46:55,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:46:55,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780225514] [2022-12-14 13:46:55,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:46:55,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:46:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:46:55,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:46:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:46:55,120 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:46:55,120 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:46:55,121 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 13:46:55,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 13:46:55,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:46:55,127 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 13:46:55,130 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:46:55,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:46:55 BoogieIcfgContainer [2022-12-14 13:46:55,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:46:55,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:46:55,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:46:55,153 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:46:55,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:46:54" (3/4) ... [2022-12-14 13:46:55,157 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:46:55,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:46:55,158 INFO L158 Benchmark]: Toolchain (without parser) took 1691.74ms. Allocated memory is still 132.1MB. Free memory was 86.1MB in the beginning and 53.7MB in the end (delta: 32.4MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2022-12-14 13:46:55,158 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 50.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:46:55,158 INFO L158 Benchmark]: CACSL2BoogieTranslator took 773.27ms. Allocated memory is still 132.1MB. Free memory was 86.1MB in the beginning and 60.1MB in the end (delta: 26.0MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2022-12-14 13:46:55,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.46ms. Allocated memory is still 132.1MB. Free memory was 59.5MB in the beginning and 57.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:46:55,159 INFO L158 Benchmark]: Boogie Preprocessor took 17.95ms. Allocated memory is still 132.1MB. Free memory was 57.2MB in the beginning and 55.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:46:55,159 INFO L158 Benchmark]: RCFGBuilder took 297.04ms. Allocated memory is still 132.1MB. Free memory was 55.3MB in the beginning and 95.6MB in the end (delta: -40.3MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2022-12-14 13:46:55,160 INFO L158 Benchmark]: TraceAbstraction took 557.64ms. Allocated memory is still 132.1MB. Free memory was 95.0MB in the beginning and 54.4MB in the end (delta: 40.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-12-14 13:46:55,160 INFO L158 Benchmark]: Witness Printer took 3.71ms. Allocated memory is still 132.1MB. Free memory was 54.4MB in the beginning and 53.7MB in the end (delta: 754.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:46:55,163 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 50.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 773.27ms. Allocated memory is still 132.1MB. Free memory was 86.1MB in the beginning and 60.1MB in the end (delta: 26.0MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.46ms. Allocated memory is still 132.1MB. Free memory was 59.5MB in the beginning and 57.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.95ms. Allocated memory is still 132.1MB. Free memory was 57.2MB in the beginning and 55.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 297.04ms. Allocated memory is still 132.1MB. Free memory was 55.3MB in the beginning and 95.6MB in the end (delta: -40.3MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * TraceAbstraction took 557.64ms. Allocated memory is still 132.1MB. Free memory was 95.0MB in the beginning and 54.4MB in the end (delta: 40.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 3.71ms. Allocated memory is still 132.1MB. Free memory was 54.4MB in the beginning and 53.7MB in the end (delta: 754.3kB). 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] RET printLine("Calling bad()...") VAL [\old(argc)=2147483650, argc=2147483650, argv={2147483652:2147483651}, argv={2147483652:2147483651}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_preinc_14_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalFive==5 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE globalFive==5 VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] ++data VAL [data=2147483647, 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: 1569]: 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 24 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 13:46:55,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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_49d69d1d-ac6e-416a-b17e-06b97e063832/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 79bd2f28b0c8250720f246576bcad7103ec15cb40088dde318a597c1fb712894 --- 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 13:46:56,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:46:56,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:46:56,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:46:56,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:46:56,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:46:56,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:46:56,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:46:56,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:46:56,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:46:56,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:46:56,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:46:56,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:46:56,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:46:56,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:46:56,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:46:56,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:46:56,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:46:56,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:46:56,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:46:56,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:46:56,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:46:56,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:46:56,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:46:56,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:46:56,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:46:56,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:46:56,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:46:56,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:46:56,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:46:56,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:46:56,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:46:56,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:46:56,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:46:56,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:46:56,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:46:56,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:46:56,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:46:56,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:46:56,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:46:56,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:46:56,954 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 13:46:56,975 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:46:56,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:46:56,975 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:46:56,976 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:46:56,976 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:46:56,976 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:46:56,977 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:46:56,977 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:46:56,977 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:46:56,977 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:46:56,977 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:46:56,977 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:46:56,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:46:56,978 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:46:56,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:46:56,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:46:56,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:46:56,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:46:56,979 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:46:56,979 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 13:46:56,979 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:46:56,980 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 13:46:56,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:46:56,980 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:46:56,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:46:56,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:46:56,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 13:46:56,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:46:56,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:46:56,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:46:56,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:46:56,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:46:56,985 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 13:46:56,985 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 13:46:56,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:46:56,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:46:56,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 13:46:56,986 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_49d69d1d-ac6e-416a-b17e-06b97e063832/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79bd2f28b0c8250720f246576bcad7103ec15cb40088dde318a597c1fb712894 [2022-12-14 13:46:57,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:46:57,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:46:57,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:46:57,287 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:46:57,287 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:46:57,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i [2022-12-14 13:46:59,910 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:47:00,183 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:47:00,183 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i [2022-12-14 13:47:00,200 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/data/142c0e5ae/92b3c65ae7f04c0080062de594aa7ca7/FLAGbbb9d83a1 [2022-12-14 13:47:00,213 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/data/142c0e5ae/92b3c65ae7f04c0080062de594aa7ca7 [2022-12-14 13:47:00,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:47:00,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:47:00,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:47:00,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:47:00,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:47:00,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:47:00" (1/1) ... [2022-12-14 13:47:00,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3318912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:00, skipping insertion in model container [2022-12-14 13:47:00,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:47:00" (1/1) ... [2022-12-14 13:47:00,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:47:00,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:47:00,559 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:47:00,913 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:47:00,918 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:47:00,919 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:47:00,920 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:47:00,921 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:47:00,935 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:47:00,939 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:47:00,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:47:00,950 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:47:00,962 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:47:01,007 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:47:01,009 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:47:01,010 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:47:01,011 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:47:01,012 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:47:01,015 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:47:01,017 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:47:01,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:47:01,111 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:47:01,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:01 WrapperNode [2022-12-14 13:47:01,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:47:01,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:47:01,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:47:01,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:47:01,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:01" (1/1) ... [2022-12-14 13:47:01,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:01" (1/1) ... [2022-12-14 13:47:01,149 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2022-12-14 13:47:01,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:47:01,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:47:01,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:47:01,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:47:01,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:01" (1/1) ... [2022-12-14 13:47:01,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:01" (1/1) ... [2022-12-14 13:47:01,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:01" (1/1) ... [2022-12-14 13:47:01,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:01" (1/1) ... [2022-12-14 13:47:01,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:01" (1/1) ... [2022-12-14 13:47:01,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:01" (1/1) ... [2022-12-14 13:47:01,170 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:01" (1/1) ... [2022-12-14 13:47:01,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:01" (1/1) ... [2022-12-14 13:47:01,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:47:01,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:47:01,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:47:01,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:47:01,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:01" (1/1) ... [2022-12-14 13:47:01,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:47:01,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:47:01,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:47:01,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:47:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 13:47:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 13:47:01,242 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 13:47:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:47:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 13:47:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:47:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:47:01,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:47:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:47:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 13:47:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 13:47:01,368 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:47:01,370 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:47:01,484 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:47:01,488 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:47:01,488 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:47:01,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:47:01 BoogieIcfgContainer [2022-12-14 13:47:01,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:47:01,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:47:01,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:47:01,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:47:01,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:47:00" (1/3) ... [2022-12-14 13:47:01,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7799b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:47:01, skipping insertion in model container [2022-12-14 13:47:01,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:47:01" (2/3) ... [2022-12-14 13:47:01,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7799b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:47:01, skipping insertion in model container [2022-12-14 13:47:01,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:47:01" (3/3) ... [2022-12-14 13:47:01,496 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i [2022-12-14 13:47:01,509 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:47:01,509 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:47:01,550 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:47:01,556 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;@2d6aa280, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:47:01,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:47:01,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 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 13:47:01,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 13:47:01,565 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:47:01,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:47:01,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:47:01,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:47:01,569 INFO L85 PathProgramCache]: Analyzing trace with hash -152054014, now seen corresponding path program 1 times [2022-12-14 13:47:01,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:47:01,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967601557] [2022-12-14 13:47:01,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:01,579 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 13:47:01,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:47:01,609 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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 13:47:01,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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 13:47:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:47:01,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 13:47:01,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:47:01,725 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 13:47:01,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:47:01,726 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:47:01,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967601557] [2022-12-14 13:47:01,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967601557] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:47:01,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:47:01,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 13:47:01,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971443779] [2022-12-14 13:47:01,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:47:01,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:47:01,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:47:01,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:47:01,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:47:01,759 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 13:47:01,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:47:01,775 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2022-12-14 13:47:01,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:47:01,776 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 11 [2022-12-14 13:47:01,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:47:01,782 INFO L225 Difference]: With dead ends: 24 [2022-12-14 13:47:01,782 INFO L226 Difference]: Without dead ends: 16 [2022-12-14 13:47:01,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:47:01,788 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:47:01,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:47:01,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-14 13:47:01,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-14 13:47:01,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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 13:47:01,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-12-14 13:47:01,817 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2022-12-14 13:47:01,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:47:01,818 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-12-14 13:47:01,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 13:47:01,819 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-12-14 13:47:01,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 13:47:01,820 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:47:01,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:47:01,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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 13:47:02,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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 13:47:02,022 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:47:02,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:47:02,024 INFO L85 PathProgramCache]: Analyzing trace with hash -418707075, now seen corresponding path program 1 times [2022-12-14 13:47:02,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:47:02,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073167919] [2022-12-14 13:47:02,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:02,027 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 13:47:02,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:47:02,030 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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 13:47:02,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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 13:47:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:47:02,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 13:47:02,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:47:02,151 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 13:47:02,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:47:02,151 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:47:02,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073167919] [2022-12-14 13:47:02,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073167919] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:47:02,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:47:02,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:47:02,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423043858] [2022-12-14 13:47:02,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:47:02,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:47:02,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:47:02,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:47:02,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:47:02,154 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 13:47:02,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:47:02,164 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-12-14 13:47:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:47:02,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 13:47:02,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:47:02,165 INFO L225 Difference]: With dead ends: 20 [2022-12-14 13:47:02,165 INFO L226 Difference]: Without dead ends: 16 [2022-12-14 13:47:02,166 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 13:47:02,167 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:47:02,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 16 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:47:02,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-14 13:47:02,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-14 13:47:02,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 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 13:47:02,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-12-14 13:47:02,171 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2022-12-14 13:47:02,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:47:02,172 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-12-14 13:47:02,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 13:47:02,172 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-12-14 13:47:02,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 13:47:02,173 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:47:02,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:47:02,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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 13:47:02,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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 13:47:02,375 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:47:02,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:47:02,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1052736290, now seen corresponding path program 1 times [2022-12-14 13:47:02,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:47:02,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695829199] [2022-12-14 13:47:02,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:02,381 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 13:47:02,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:47:02,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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 13:47:02,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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 (4)] Waiting until timeout for monitored process [2022-12-14 13:47:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:47:02,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:47:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:47:02,589 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 13:47:02,589 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:47:02,590 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 13:47:02,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 13:47:02,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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 (4)] Ended with exit code 0 [2022-12-14 13:47:02,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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 13:47:02,803 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 13:47:02,812 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:47:02,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:47:02 BoogieIcfgContainer [2022-12-14 13:47:02,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:47:02,854 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:47:02,854 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:47:02,855 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:47:02,855 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:47:01" (3/4) ... [2022-12-14 13:47:02,858 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:47:02,858 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:47:02,858 INFO L158 Benchmark]: Toolchain (without parser) took 2641.29ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 39.7MB in the beginning and 43.3MB in the end (delta: -3.6MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-12-14 13:47:02,859 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 52.4MB. Free memory is still 31.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:47:02,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 893.82ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 39.6MB in the beginning and 36.3MB in the end (delta: 3.3MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-12-14 13:47:02,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.53ms. Allocated memory is still 79.7MB. Free memory was 36.3MB in the beginning and 33.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:47:02,860 INFO L158 Benchmark]: Boogie Preprocessor took 26.94ms. Allocated memory is still 79.7MB. Free memory was 33.4MB in the beginning and 31.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:47:02,860 INFO L158 Benchmark]: RCFGBuilder took 312.17ms. Allocated memory is still 79.7MB. Free memory was 31.3MB in the beginning and 40.0MB in the end (delta: -8.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 13:47:02,861 INFO L158 Benchmark]: TraceAbstraction took 1362.20ms. Allocated memory is still 79.7MB. Free memory was 39.2MB in the beginning and 43.8MB in the end (delta: -4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:47:02,861 INFO L158 Benchmark]: Witness Printer took 3.43ms. Allocated memory is still 79.7MB. Free memory was 43.8MB in the beginning and 43.3MB in the end (delta: 425.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:47:02,863 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 52.4MB. Free memory is still 31.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 893.82ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 39.6MB in the beginning and 36.3MB in the end (delta: 3.3MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.53ms. Allocated memory is still 79.7MB. Free memory was 36.3MB in the beginning and 33.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.94ms. Allocated memory is still 79.7MB. Free memory was 33.4MB in the beginning and 31.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 312.17ms. Allocated memory is still 79.7MB. Free memory was 31.3MB in the beginning and 40.0MB in the end (delta: -8.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1362.20ms. Allocated memory is still 79.7MB. Free memory was 39.2MB in the beginning and 43.8MB in the end (delta: -4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.43ms. Allocated memory is still 79.7MB. Free memory was 43.8MB in the beginning and 43.3MB in the end (delta: 425.7kB). 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_preinc_14_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalFive==5 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE globalFive==5 VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] ++data VAL [data=2147483647, 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: 1569]: 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: 1.3s, OverallIterations: 3, 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, 10 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 44 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 SizeOfPredicates, 0 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 13:47:02,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49d69d1d-ac6e-416a-b17e-06b97e063832/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