./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_15_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_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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_b3c040a2-bf6a-4441-b659-b42548848c8d/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 a3201307307e47fa08ad351bb3671e2a16c2d02ed34e995988ac10cf26b5ec0f --- 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 14:02:10,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:02:10,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:02:10,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:02:10,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:02:10,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:02:10,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:02:10,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:02:10,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:02:10,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:02:10,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:02:10,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:02:10,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:02:10,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:02:10,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:02:10,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:02:10,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:02:10,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:02:10,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:02:10,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:02:10,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:02:10,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:02:10,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:02:10,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:02:10,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:02:10,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:02:10,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:02:10,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:02:10,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:02:10,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:02:10,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:02:10,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:02:10,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:02:10,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:02:10,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:02:10,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:02:10,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:02:10,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:02:10,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:02:10,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:02:10,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:02:10,987 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 14:02:11,009 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:02:11,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:02:11,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:02:11,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:02:11,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:02:11,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:02:11,011 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:02:11,011 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:02:11,011 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:02:11,012 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:02:11,012 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:02:11,012 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:02:11,012 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:02:11,012 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:02:11,013 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:02:11,013 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:02:11,013 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:02:11,013 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:02:11,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:02:11,014 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:02:11,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:02:11,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:02:11,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:02:11,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:02:11,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:02:11,015 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 14:02:11,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:02:11,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:02:11,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:02:11,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:02:11,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:02:11,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:02:11,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:02:11,016 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:02:11,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:02:11,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:02:11,017 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:02:11,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:02:11,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:02:11,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:02:11,017 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_b3c040a2-bf6a-4441-b659-b42548848c8d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3201307307e47fa08ad351bb3671e2a16c2d02ed34e995988ac10cf26b5ec0f [2022-12-14 14:02:11,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:02:11,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:02:11,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:02:11,212 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:02:11,212 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:02:11,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i [2022-12-14 14:02:13,756 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:02:13,998 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:02:13,998 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i [2022-12-14 14:02:14,011 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/data/f727c355e/328a7a73d6d0416493b087f32fa87416/FLAG7a6895657 [2022-12-14 14:02:14,324 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/data/f727c355e/328a7a73d6d0416493b087f32fa87416 [2022-12-14 14:02:14,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:02:14,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:02:14,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:02:14,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:02:14,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:02:14,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:02:14" (1/1) ... [2022-12-14 14:02:14,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bddbef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:14, skipping insertion in model container [2022-12-14 14:02:14,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:02:14" (1/1) ... [2022-12-14 14:02:14,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:02:14,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:02:14,685 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 14:02:15,030 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:02:15,034 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:02:15,036 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:02:15,038 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:02:15,039 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:02:15,054 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 14:02:15,059 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 14:02:15,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:02:15,068 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:02:15,082 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 14:02:15,116 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:02:15,118 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:02:15,118 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:02:15,120 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:02:15,121 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:02:15,124 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 14:02:15,126 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 14:02:15,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:02:15,212 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:02:15,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:15 WrapperNode [2022-12-14 14:02:15,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:02:15,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:02:15,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:02:15,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:02:15,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:15" (1/1) ... [2022-12-14 14:02:15,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:15" (1/1) ... [2022-12-14 14:02:15,261 INFO L138 Inliner]: procedures = 500, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-12-14 14:02:15,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:02:15,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:02:15,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:02:15,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:02:15,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:15" (1/1) ... [2022-12-14 14:02:15,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:15" (1/1) ... [2022-12-14 14:02:15,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:15" (1/1) ... [2022-12-14 14:02:15,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:15" (1/1) ... [2022-12-14 14:02:15,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:15" (1/1) ... [2022-12-14 14:02:15,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:15" (1/1) ... [2022-12-14 14:02:15,277 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:15" (1/1) ... [2022-12-14 14:02:15,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:15" (1/1) ... [2022-12-14 14:02:15,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:02:15,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:02:15,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:02:15,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:02:15,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:15" (1/1) ... [2022-12-14 14:02:15,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:02:15,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:02:15,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:02:15,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:02:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 14:02:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 14:02:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 14:02:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:02:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 14:02:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:02:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:02:15,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:02:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:02:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 14:02:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:02:15,441 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:02:15,442 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:02:15,545 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:02:15,569 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:02:15,569 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:02:15,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:02:15 BoogieIcfgContainer [2022-12-14 14:02:15,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:02:15,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:02:15,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:02:15,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:02:15,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:02:14" (1/3) ... [2022-12-14 14:02:15,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b295ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:02:15, skipping insertion in model container [2022-12-14 14:02:15,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:15" (2/3) ... [2022-12-14 14:02:15,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b295ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:02:15, skipping insertion in model container [2022-12-14 14:02:15,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:02:15" (3/3) ... [2022-12-14 14:02:15,577 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i [2022-12-14 14:02:15,591 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:02:15,592 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 14:02:15,627 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:02:15,632 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;@206d4724, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:02:15,632 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 14:02:15,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 14 states have (on average 1.5) internal successors, (21), 19 states have internal predecessors, (21), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 14:02:15,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 14:02:15,641 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:02:15,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:02:15,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 14:02:15,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:02:15,646 INFO L85 PathProgramCache]: Analyzing trace with hash -312499884, now seen corresponding path program 1 times [2022-12-14 14:02:15,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:02:15,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375007439] [2022-12-14 14:02:15,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:02:15,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:02:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:02:15,803 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 14:02:15,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:02:15,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375007439] [2022-12-14 14:02:15,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375007439] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:02:15,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:02:15,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:02:15,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601492691] [2022-12-14 14:02:15,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:02:15,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:02:15,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:02:15,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:02:15,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:02:15,832 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.5) internal successors, (21), 19 states have internal predecessors, (21), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 2.6666666666666665) 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 14:02:15,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:02:15,864 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2022-12-14 14:02:15,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:02:15,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) 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 14:02:15,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:02:15,871 INFO L225 Difference]: With dead ends: 37 [2022-12-14 14:02:15,871 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 14:02:15,873 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 14:02:15,875 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:02:15,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 34 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:02:15,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 14:02:15,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 14:02:15,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 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 14:02:15,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-12-14 14:02:15,902 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2022-12-14 14:02:15,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:02:15,903 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-12-14 14:02:15,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) 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 14:02:15,903 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-12-14 14:02:15,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 14:02:15,904 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:02:15,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:02:15,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:02:15,904 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 14:02:15,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:02:15,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1396159882, now seen corresponding path program 1 times [2022-12-14 14:02:15,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:02:15,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533600620] [2022-12-14 14:02:15,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:02:15,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:02:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:02:15,994 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 14:02:15,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:02:15,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533600620] [2022-12-14 14:02:15,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533600620] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:02:15,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:02:15,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:02:15,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101680518] [2022-12-14 14:02:15,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:02:15,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:02:15,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:02:15,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:02:15,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:02:15,997 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 14:02:16,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:02:16,010 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-12-14 14:02:16,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:02:16,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 14:02:16,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:02:16,011 INFO L225 Difference]: With dead ends: 15 [2022-12-14 14:02:16,011 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 14:02:16,011 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 14:02:16,013 INFO L413 NwaCegarLoop]: 11 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, 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 14:02:16,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 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 14:02:16,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 14:02:16,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 14:02:16,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) 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 14:02:16,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-14 14:02:16,017 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-12-14 14:02:16,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:02:16,018 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-14 14:02:16,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 14:02:16,018 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-14 14:02:16,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 14:02:16,019 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:02:16,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:02:16,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:02:16,019 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 14:02:16,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:02:16,020 INFO L85 PathProgramCache]: Analyzing trace with hash -331283312, now seen corresponding path program 1 times [2022-12-14 14:02:16,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:02:16,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507098234] [2022-12-14 14:02:16,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:02:16,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:02:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:02:16,047 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:02:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:02:16,075 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 14:02:16,075 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:02:16,076 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 14:02:16,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 14:02:16,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:02:16,080 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 14:02:16,083 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:02:16,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:02:16 BoogieIcfgContainer [2022-12-14 14:02:16,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:02:16,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:02:16,112 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:02:16,112 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:02:16,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:02:15" (3/4) ... [2022-12-14 14:02:16,114 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 14:02:16,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:02:16,115 INFO L158 Benchmark]: Toolchain (without parser) took 1787.80ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 135.0MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:02:16,115 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:02:16,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 884.78ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 129.9MB in the end (delta: -1.0MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. [2022-12-14 14:02:16,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.21ms. Allocated memory is still 167.8MB. Free memory was 129.9MB in the beginning and 127.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:02:16,116 INFO L158 Benchmark]: Boogie Preprocessor took 18.16ms. Allocated memory is still 167.8MB. Free memory was 127.3MB in the beginning and 125.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:02:16,117 INFO L158 Benchmark]: RCFGBuilder took 290.63ms. Allocated memory is still 167.8MB. Free memory was 125.7MB in the beginning and 110.6MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 14:02:16,117 INFO L158 Benchmark]: TraceAbstraction took 538.25ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 135.0MB in the end (delta: -25.2MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2022-12-14 14:02:16,117 INFO L158 Benchmark]: Witness Printer took 2.82ms. Allocated memory is still 167.8MB. Free memory is still 135.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:02:16,119 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 884.78ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 129.9MB in the end (delta: -1.0MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.21ms. Allocated memory is still 167.8MB. Free memory was 129.9MB in the beginning and 127.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.16ms. Allocated memory is still 167.8MB. Free memory was 127.3MB in the beginning and 125.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 290.63ms. Allocated memory is still 167.8MB. Free memory was 125.7MB in the beginning and 110.6MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 538.25ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 135.0MB in the end (delta: -25.2MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Witness Printer took 2.82ms. Allocated memory is still 167.8MB. Free memory is still 135.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1575]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559. 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); [L1588] 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={6:0}] [L1414] COND TRUE line != ((void *)0) [L1588] RET printLine("Calling bad()...") VAL [\old(argc)=2147483651, argc=2147483651, argv={2147483653:2147483652}, argv={2147483653:2147483652}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1589] CALL CWE190_Integer_Overflow__int_fgets_preinc_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1556] 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] [L1573] case 7: 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] [L1575] ++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: 1575]: 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, 23 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, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 31 mSDtfsCounter, 18 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=23occurred 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, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 35 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 14:02:16,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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_b3c040a2-bf6a-4441-b659-b42548848c8d/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 a3201307307e47fa08ad351bb3671e2a16c2d02ed34e995988ac10cf26b5ec0f --- 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 14:02:17,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:02:17,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:02:17,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:02:17,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:02:17,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:02:17,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:02:17,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:02:17,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:02:17,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:02:17,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:02:17,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:02:17,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:02:17,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:02:17,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:02:17,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:02:17,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:02:17,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:02:17,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:02:17,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:02:17,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:02:17,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:02:17,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:02:17,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:02:17,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:02:17,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:02:17,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:02:17,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:02:17,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:02:17,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:02:17,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:02:17,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:02:17,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:02:17,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:02:17,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:02:17,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:02:17,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:02:17,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:02:17,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:02:17,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:02:17,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:02:17,867 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 14:02:17,891 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:02:17,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:02:17,891 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:02:17,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:02:17,892 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:02:17,893 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:02:17,893 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:02:17,893 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:02:17,893 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:02:17,893 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:02:17,893 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:02:17,894 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:02:17,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:02:17,895 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:02:17,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:02:17,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:02:17,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:02:17,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:02:17,896 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:02:17,896 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 14:02:17,896 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 14:02:17,896 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 14:02:17,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:02:17,896 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:02:17,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:02:17,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:02:17,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 14:02:17,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:02:17,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:02:17,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:02:17,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:02:17,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:02:17,897 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 14:02:17,897 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 14:02:17,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:02:17,898 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:02:17,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 14:02:17,898 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_b3c040a2-bf6a-4441-b659-b42548848c8d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3201307307e47fa08ad351bb3671e2a16c2d02ed34e995988ac10cf26b5ec0f [2022-12-14 14:02:18,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:02:18,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:02:18,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:02:18,130 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:02:18,130 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:02:18,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i [2022-12-14 14:02:20,652 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:02:20,925 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:02:20,926 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i [2022-12-14 14:02:20,940 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/data/a32deb5f6/801ad5afee494f4bb20d4b3180546dbd/FLAGf4cf893c5 [2022-12-14 14:02:20,950 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/data/a32deb5f6/801ad5afee494f4bb20d4b3180546dbd [2022-12-14 14:02:20,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:02:20,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:02:20,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:02:20,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:02:20,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:02:20,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:02:20" (1/1) ... [2022-12-14 14:02:20,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d6d3615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:20, skipping insertion in model container [2022-12-14 14:02:20,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:02:20" (1/1) ... [2022-12-14 14:02:20,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:02:20,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:02:21,238 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 14:02:21,547 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:02:21,551 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:02:21,552 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:02:21,554 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:02:21,554 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:02:21,572 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 14:02:21,577 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 14:02:21,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:02:21,589 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:02:21,602 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 14:02:21,665 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:02:21,666 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:02:21,667 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:02:21,668 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:02:21,668 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:02:21,671 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 14:02:21,673 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 14:02:21,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:02:21,761 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:02:21,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:21 WrapperNode [2022-12-14 14:02:21,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:02:21,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:02:21,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:02:21,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:02:21,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:21" (1/1) ... [2022-12-14 14:02:21,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:21" (1/1) ... [2022-12-14 14:02:21,808 INFO L138 Inliner]: procedures = 505, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2022-12-14 14:02:21,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:02:21,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:02:21,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:02:21,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:02:21,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:21" (1/1) ... [2022-12-14 14:02:21,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:21" (1/1) ... [2022-12-14 14:02:21,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:21" (1/1) ... [2022-12-14 14:02:21,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:21" (1/1) ... [2022-12-14 14:02:21,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:21" (1/1) ... [2022-12-14 14:02:21,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:21" (1/1) ... [2022-12-14 14:02:21,825 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:21" (1/1) ... [2022-12-14 14:02:21,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:21" (1/1) ... [2022-12-14 14:02:21,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:02:21,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:02:21,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:02:21,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:02:21,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:21" (1/1) ... [2022-12-14 14:02:21,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:02:21,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:02:21,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:02:21,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:02:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 14:02:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 14:02:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 14:02:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:02:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 14:02:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:02:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:02:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:02:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:02:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 14:02:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 14:02:21,998 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:02:22,000 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:02:22,128 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:02:22,133 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:02:22,133 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:02:22,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:02:22 BoogieIcfgContainer [2022-12-14 14:02:22,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:02:22,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:02:22,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:02:22,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:02:22,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:02:20" (1/3) ... [2022-12-14 14:02:22,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21956f53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:02:22, skipping insertion in model container [2022-12-14 14:02:22,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:02:21" (2/3) ... [2022-12-14 14:02:22,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21956f53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:02:22, skipping insertion in model container [2022-12-14 14:02:22,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:02:22" (3/3) ... [2022-12-14 14:02:22,144 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i [2022-12-14 14:02:22,162 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:02:22,163 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 14:02:22,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:02:22,202 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;@62d79c5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:02:22,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 14:02:22,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 21 states have (on average 1.380952380952381) internal successors, (29), 26 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 14:02:22,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 14:02:22,214 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:02:22,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:02:22,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 14:02:22,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:02:22,221 INFO L85 PathProgramCache]: Analyzing trace with hash -851769054, now seen corresponding path program 1 times [2022-12-14 14:02:22,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:02:22,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345758846] [2022-12-14 14:02:22,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:02:22,235 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 14:02:22,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:02:22,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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 14:02:22,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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 14:02:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:02:22,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 14:02:22,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:02:22,444 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 14:02:22,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:02:22,445 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:02:22,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345758846] [2022-12-14 14:02:22,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345758846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:02:22,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:02:22,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:02:22,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616281100] [2022-12-14 14:02:22,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:02:22,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:02:22,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:02:22,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:02:22,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:02:22,483 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.380952380952381) internal successors, (29), 26 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 1 states have (on average 11.0) internal successors, (11), 2 states have internal predecessors, (11), 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 14:02:22,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:02:22,501 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2022-12-14 14:02:22,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:02:22,503 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 11.0) internal successors, (11), 2 states have internal predecessors, (11), 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 13 [2022-12-14 14:02:22,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:02:22,509 INFO L225 Difference]: With dead ends: 30 [2022-12-14 14:02:22,509 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 14:02:22,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 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 14:02:22,515 INFO L413 NwaCegarLoop]: 38 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, 38 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 14:02:22,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:02:22,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 14:02:22,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 14:02:22,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 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 14:02:22,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-12-14 14:02:22,548 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 13 [2022-12-14 14:02:22,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:02:22,549 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-12-14 14:02:22,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 11.0) internal successors, (11), 2 states have internal predecessors, (11), 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 14:02:22,550 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-12-14 14:02:22,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 14:02:22,551 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:02:22,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:02:22,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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 14:02:22,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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 14:02:22,752 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 14:02:22,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:02:22,753 INFO L85 PathProgramCache]: Analyzing trace with hash -635036828, now seen corresponding path program 1 times [2022-12-14 14:02:22,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:02:22,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858710325] [2022-12-14 14:02:22,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:02:22,754 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 14:02:22,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:02:22,755 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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 14:02:22,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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 14:02:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:02:22,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:02:22,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:02:22,830 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 14:02:22,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:02:22,831 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:02:22,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858710325] [2022-12-14 14:02:22,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858710325] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:02:22,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:02:22,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:02:22,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235906248] [2022-12-14 14:02:22,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:02:22,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:02:22,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:02:22,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:02:22,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:02:22,834 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14:02:22,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:02:22,846 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-12-14 14:02:22,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:02:22,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14 [2022-12-14 14:02:22,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:02:22,847 INFO L225 Difference]: With dead ends: 28 [2022-12-14 14:02:22,847 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 14:02:22,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 14:02:22,849 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 30 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 14:02:22,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 30 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:02:22,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 14:02:22,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-14 14:02:22,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 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 14:02:22,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-12-14 14:02:22,853 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2022-12-14 14:02:22,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:02:22,853 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-12-14 14:02:22,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14:02:22,854 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-12-14 14:02:22,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 14:02:22,854 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:02:22,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:02:22,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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 14:02:23,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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 14:02:23,057 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 14:02:23,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:02:23,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1122087134, now seen corresponding path program 1 times [2022-12-14 14:02:23,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:02:23,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104187401] [2022-12-14 14:02:23,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:02:23,063 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 14:02:23,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:02:23,067 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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 14:02:23,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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 14:02:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:02:23,210 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:02:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:02:23,262 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 14:02:23,262 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:02:23,262 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 14:02:23,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 14:02:23,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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 14:02:23,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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 14:02:23,475 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 14:02:23,484 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:02:23,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:02:23 BoogieIcfgContainer [2022-12-14 14:02:23,523 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:02:23,524 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:02:23,524 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:02:23,524 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:02:23,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:02:22" (3/4) ... [2022-12-14 14:02:23,526 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 14:02:23,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:02:23,527 INFO L158 Benchmark]: Toolchain (without parser) took 2573.43ms. Allocated memory is still 92.3MB. Free memory was 66.8MB in the beginning and 31.8MB in the end (delta: 34.9MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2022-12-14 14:02:23,527 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 71.3MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:02:23,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 807.86ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 60.6MB in the end (delta: 5.8MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2022-12-14 14:02:23,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.41ms. Allocated memory is still 92.3MB. Free memory was 60.6MB in the beginning and 57.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:02:23,528 INFO L158 Benchmark]: Boogie Preprocessor took 20.25ms. Allocated memory is still 92.3MB. Free memory was 57.4MB in the beginning and 55.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:02:23,528 INFO L158 Benchmark]: RCFGBuilder took 306.02ms. Allocated memory is still 92.3MB. Free memory was 55.4MB in the beginning and 40.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 14:02:23,528 INFO L158 Benchmark]: TraceAbstraction took 1385.71ms. Allocated memory is still 92.3MB. Free memory was 40.2MB in the beginning and 31.8MB in the end (delta: 8.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-12-14 14:02:23,528 INFO L158 Benchmark]: Witness Printer took 2.75ms. Allocated memory is still 92.3MB. Free memory is still 31.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:02:23,530 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 71.3MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 807.86ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 60.6MB in the end (delta: 5.8MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.41ms. Allocated memory is still 92.3MB. Free memory was 60.6MB in the beginning and 57.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.25ms. Allocated memory is still 92.3MB. Free memory was 57.4MB in the beginning and 55.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.02ms. Allocated memory is still 92.3MB. Free memory was 55.4MB in the beginning and 40.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1385.71ms. Allocated memory is still 92.3MB. Free memory was 40.2MB in the beginning and 31.8MB in the end (delta: 8.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 2.75ms. Allocated memory is still 92.3MB. Free memory is still 31.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1575]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559. 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] [L1588] 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={6:0}] [L1414] COND TRUE line != ((void *)0) [L1588] 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] [L1589] CALL CWE190_Integer_Overflow__int_fgets_preinc_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1556] 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] [L1573] case 7: 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] [L1575] ++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: 1575]: 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, 30 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, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 56 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 111 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 14:02:23,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3c040a2-bf6a-4441-b659-b42548848c8d/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