./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_add_08_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/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_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_add_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/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_1083be78-8894-4d73-ae63-9ddbd3d1241f/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 889c47cf91dc678945de229006aaf762bb0eec6cdf5835f548de77ba75efd829 --- 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 12:43:17,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:43:17,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:43:17,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:43:17,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:43:17,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:43:17,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:43:17,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:43:17,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:43:17,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:43:17,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:43:17,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:43:17,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:43:17,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:43:17,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:43:17,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:43:17,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:43:17,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:43:17,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:43:17,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:43:17,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:43:17,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:43:17,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:43:17,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:43:17,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:43:17,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:43:17,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:43:17,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:43:17,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:43:17,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:43:17,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:43:17,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:43:17,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:43:17,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:43:17,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:43:17,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:43:17,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:43:17,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:43:17,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:43:17,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:43:17,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:43:17,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 12:43:17,774 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:43:17,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:43:17,774 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:43:17,775 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:43:17,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:43:17,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:43:17,776 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:43:17,776 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:43:17,776 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:43:17,776 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:43:17,776 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:43:17,777 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:43:17,777 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:43:17,777 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:43:17,777 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:43:17,777 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:43:17,777 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:43:17,778 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:43:17,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:43:17,778 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 12:43:17,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:43:17,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:43:17,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:43:17,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:43:17,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:43:17,779 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 12:43:17,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:43:17,780 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:43:17,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:43:17,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:43:17,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:43:17,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:43:17,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:43:17,781 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:43:17,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:43:17,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:43:17,781 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:43:17,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:43:17,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:43:17,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:43:17,782 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_1083be78-8894-4d73-ae63-9ddbd3d1241f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 889c47cf91dc678945de229006aaf762bb0eec6cdf5835f548de77ba75efd829 [2022-12-14 12:43:17,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:43:17,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:43:17,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:43:17,990 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:43:17,991 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:43:17,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_add_08_bad.i [2022-12-14 12:43:20,580 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:43:20,799 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:43:20,800 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_add_08_bad.i [2022-12-14 12:43:20,812 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/data/fdf1c6a1e/fb78a02cd4e54601a0381432d38f166e/FLAGb64e41510 [2022-12-14 12:43:20,823 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/data/fdf1c6a1e/fb78a02cd4e54601a0381432d38f166e [2022-12-14 12:43:20,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:43:20,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:43:20,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:43:20,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:43:20,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:43:20,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:43:20" (1/1) ... [2022-12-14 12:43:20,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@746e3413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:43:20, skipping insertion in model container [2022-12-14 12:43:20,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:43:20" (1/1) ... [2022-12-14 12:43:20,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:43:20,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:43:21,172 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 12:43:21,492 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:43:21,496 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:43:21,497 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:43:21,499 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:43:21,500 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:43:21,519 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 12:43:21,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:43:21,528 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:43:21,553 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 12:43:21,603 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:43:21,605 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:43:21,606 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:43:21,608 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:43:21,609 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:43:21,613 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 12:43:21,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:43:21,687 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:43:21,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:43:21 WrapperNode [2022-12-14 12:43:21,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:43:21,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:43:21,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:43:21,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:43:21,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:43:21" (1/1) ... [2022-12-14 12:43:21,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:43:21" (1/1) ... [2022-12-14 12:43:21,727 INFO L138 Inliner]: procedures = 501, calls = 61, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2022-12-14 12:43:21,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:43:21,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:43:21,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:43:21,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:43:21,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:43:21" (1/1) ... [2022-12-14 12:43:21,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:43:21" (1/1) ... [2022-12-14 12:43:21,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:43:21" (1/1) ... [2022-12-14 12:43:21,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:43:21" (1/1) ... [2022-12-14 12:43:21,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:43:21" (1/1) ... [2022-12-14 12:43:21,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:43:21" (1/1) ... [2022-12-14 12:43:21,749 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:43:21" (1/1) ... [2022-12-14 12:43:21,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:43:21" (1/1) ... [2022-12-14 12:43:21,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:43:21,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:43:21,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:43:21,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:43:21,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:43:21" (1/1) ... [2022-12-14 12:43:21,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:43:21,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:43:21,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:43:21,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:43:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 12:43:21,825 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 12:43:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:43:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:43:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:43:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:43:21,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:43:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-12-14 12:43:21,825 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-12-14 12:43:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:43:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 12:43:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:43:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:43:21,937 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:43:21,939 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:43:22,045 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:43:22,091 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:43:22,092 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 12:43:22,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:43:22 BoogieIcfgContainer [2022-12-14 12:43:22,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:43:22,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:43:22,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:43:22,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:43:22,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:43:20" (1/3) ... [2022-12-14 12:43:22,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d614a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:43:22, skipping insertion in model container [2022-12-14 12:43:22,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:43:21" (2/3) ... [2022-12-14 12:43:22,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d614a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:43:22, skipping insertion in model container [2022-12-14 12:43:22,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:43:22" (3/3) ... [2022-12-14 12:43:22,103 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fscanf_add_08_bad.i [2022-12-14 12:43:22,122 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:43:22,122 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 12:43:22,170 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:43:22,176 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;@7cafbd2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:43:22,177 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 12:43:22,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 12:43:22,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 12:43:22,188 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:43:22,188 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:43:22,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 12:43:22,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:43:22,193 INFO L85 PathProgramCache]: Analyzing trace with hash -113876473, now seen corresponding path program 1 times [2022-12-14 12:43:22,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:43:22,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835659931] [2022-12-14 12:43:22,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:43:22,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:43:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:43:22,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 12:43:22,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:43:22,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835659931] [2022-12-14 12:43:22,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835659931] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:43:22,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715452771] [2022-12-14 12:43:22,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:43:22,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:43:22,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:43:22,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:43:22,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:43:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:43:22,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 12:43:22,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:43:22,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 12:43:22,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-12-14 12:43:22,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:43:22,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:43:22,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:43:22,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-12-14 12:43:23,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 12:43:23,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715452771] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:43:23,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1878496339] [2022-12-14 12:43:23,025 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-12-14 12:43:23,025 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:43:23,028 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:43:23,032 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:43:23,032 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:43:23,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:43:23,144 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 12:43:23,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 12:43:23,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:43:23,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 12:43:23,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:43:23,201 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 12:43:23,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 12:43:23,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 12:43:23,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 12:43:23,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 12:43:23,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 12:43:23,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:43:23,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2022-12-14 12:43:23,487 INFO L197 IcfgInterpreter]: Interpreting procedure staticReturnsTrue with input of size 118 for LOIs [2022-12-14 12:43:23,546 INFO L197 IcfgInterpreter]: Interpreting procedure printLine with input of size 56 for LOIs [2022-12-14 12:43:23,550 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:43:24,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1878496339] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:43:24,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:43:24,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5, 6, 5] total 21 [2022-12-14 12:43:24,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116728557] [2022-12-14 12:43:24,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:43:24,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 12:43:24,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:43:24,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 12:43:24,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2022-12-14 12:43:24,975 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 12:43:25,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:43:25,178 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2022-12-14 12:43:25,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 12:43:25,180 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2022-12-14 12:43:25,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:43:25,184 INFO L225 Difference]: With dead ends: 28 [2022-12-14 12:43:25,185 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 12:43:25,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2022-12-14 12:43:25,188 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:43:25,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:43:25,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 12:43:25,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 12:43:25,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 12:43:25,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-14 12:43:25,213 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 15 [2022-12-14 12:43:25,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:43:25,214 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-14 12:43:25,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 12:43:25,214 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-14 12:43:25,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 12:43:25,215 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:43:25,215 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:43:25,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:43:25,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 12:43:25,418 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 12:43:25,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:43:25,419 INFO L85 PathProgramCache]: Analyzing trace with hash 764796692, now seen corresponding path program 1 times [2022-12-14 12:43:25,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:43:25,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773600934] [2022-12-14 12:43:25,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:43:25,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:43:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:43:25,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 12:43:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:43:25,483 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 12:43:25,483 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 12:43:25,484 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 12:43:25,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 12:43:25,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:43:25,490 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 12:43:25,494 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:43:25,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:43:25 BoogieIcfgContainer [2022-12-14 12:43:25,520 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:43:25,520 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:43:25,520 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:43:25,520 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:43:25,521 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:43:22" (3/4) ... [2022-12-14 12:43:25,522 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 12:43:25,561 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 12:43:25,561 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:43:25,562 INFO L158 Benchmark]: Toolchain (without parser) took 4735.53ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 66.9MB in the beginning and 94.6MB in the end (delta: -27.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:43:25,562 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 92.3MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:43:25,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 860.10ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 66.9MB in the beginning and 66.0MB in the end (delta: 902.5kB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2022-12-14 12:43:25,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.90ms. Allocated memory is still 134.2MB. Free memory was 66.0MB in the beginning and 63.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 12:43:25,563 INFO L158 Benchmark]: Boogie Preprocessor took 24.32ms. Allocated memory is still 134.2MB. Free memory was 63.0MB in the beginning and 61.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:43:25,563 INFO L158 Benchmark]: RCFGBuilder took 341.24ms. Allocated memory is still 134.2MB. Free memory was 61.8MB in the beginning and 100.7MB in the end (delta: -38.9MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2022-12-14 12:43:25,564 INFO L158 Benchmark]: TraceAbstraction took 3423.11ms. Allocated memory is still 134.2MB. Free memory was 99.7MB in the beginning and 96.7MB in the end (delta: 3.0MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2022-12-14 12:43:25,564 INFO L158 Benchmark]: Witness Printer took 41.01ms. Allocated memory is still 134.2MB. Free memory was 96.7MB in the beginning and 94.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 12:43:25,566 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 92.3MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 860.10ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 66.9MB in the beginning and 66.0MB in the end (delta: 902.5kB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.90ms. Allocated memory is still 134.2MB. Free memory was 66.0MB in the beginning and 63.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.32ms. Allocated memory is still 134.2MB. Free memory was 63.0MB in the beginning and 61.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 341.24ms. Allocated memory is still 134.2MB. Free memory was 61.8MB in the beginning and 100.7MB in the end (delta: -38.9MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3423.11ms. Allocated memory is still 134.2MB. Free memory was 99.7MB in the beginning and 96.7MB in the end (delta: 3.0MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. * Witness Printer took 41.01ms. Allocated memory is still 134.2MB. Free memory was 96.7MB in the beginning and 94.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1567]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1575] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1575] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483651:2147483650}, argv={2147483651:2147483650}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE190_Integer_Overflow__int_fscanf_add_08_bad() [L1558] int data; [L1559] data = 0 VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1560] RET staticReturnsTrue() VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1560] COND TRUE staticReturnsTrue() [L1564] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1564] RET staticReturnsTrue() VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1564] COND TRUE staticReturnsTrue() [L1567] EXPR \read(data) VAL [\read(data)=2147483647, data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] data + 1 VAL [\read(data)=2147483647, data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 109 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 5 mSDtfsCounter, 109 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 2 QuantifiedInterpolants, 157 SizeOfPredicates, 11 NumberOfNonLiveVariables, 123 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 3/6 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: OVERALL_TIME: 0.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 14, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 10, TOOLS_POST_TIME: 0.3s, TOOLS_POST_CALL_APPLICATIONS: 9, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 25, TOOLS_QUANTIFIERELIM_TIME: 0.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 40, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 7, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 14, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 126, DAG_COMPRESSION_RETAINED_NODES: 43, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 12:43:25,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1083be78-8894-4d73-ae63-9ddbd3d1241f/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)