./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_44_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/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_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/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_0d80b84d-502b-47e0-9adb-238edb10c22b/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 3ef87f83559e1dd8a1a542027c4c4cca7e4866c9cc7a31bab297d26dc9767189 --- 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 03:11:53,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 03:11:53,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 03:11:53,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 03:11:53,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 03:11:53,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 03:11:53,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 03:11:53,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 03:11:53,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 03:11:53,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 03:11:53,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 03:11:53,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 03:11:53,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 03:11:53,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 03:11:53,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 03:11:53,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 03:11:53,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 03:11:53,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 03:11:53,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 03:11:53,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 03:11:53,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 03:11:53,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 03:11:53,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 03:11:53,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 03:11:53,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 03:11:53,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 03:11:53,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 03:11:53,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 03:11:53,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 03:11:53,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 03:11:53,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 03:11:53,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 03:11:53,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 03:11:53,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 03:11:53,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 03:11:53,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 03:11:53,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 03:11:53,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 03:11:53,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 03:11:53,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 03:11:53,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 03:11:53,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 03:11:53,847 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 03:11:53,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 03:11:53,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 03:11:53,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 03:11:53,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 03:11:53,854 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 03:11:53,854 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 03:11:53,854 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 03:11:53,854 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 03:11:53,854 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 03:11:53,855 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 03:11:53,855 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 03:11:53,855 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 03:11:53,855 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 03:11:53,855 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 03:11:53,855 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 03:11:53,856 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 03:11:53,856 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 03:11:53,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 03:11:53,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 03:11:53,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 03:11:53,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 03:11:53,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 03:11:53,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 03:11:53,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 03:11:53,857 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 03:11:53,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 03:11:53,857 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 03:11:53,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 03:11:53,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 03:11:53,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 03:11:53,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:11:53,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 03:11:53,858 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 03:11:53,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 03:11:53,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 03:11:53,858 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 03:11:53,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 03:11:53,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 03:11:53,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 03:11:53,859 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_0d80b84d-502b-47e0-9adb-238edb10c22b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ef87f83559e1dd8a1a542027c4c4cca7e4866c9cc7a31bab297d26dc9767189 [2022-12-14 03:11:54,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 03:11:54,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 03:11:54,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 03:11:54,044 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 03:11:54,044 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 03:11:54,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_44_bad.i [2022-12-14 03:11:56,566 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 03:11:56,857 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 03:11:56,857 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_44_bad.i [2022-12-14 03:11:56,877 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/data/9381cf687/45f49e5f707d4aceb6038d2ea1d848e9/FLAGf6d0a5bc9 [2022-12-14 03:11:57,149 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/data/9381cf687/45f49e5f707d4aceb6038d2ea1d848e9 [2022-12-14 03:11:57,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 03:11:57,154 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 03:11:57,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 03:11:57,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 03:11:57,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 03:11:57,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:11:57" (1/1) ... [2022-12-14 03:11:57,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ad91ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:57, skipping insertion in model container [2022-12-14 03:11:57,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:11:57" (1/1) ... [2022-12-14 03:11:57,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 03:11:57,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 03:11:57,430 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 03:11:57,748 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 03:11:57,752 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:11:57,754 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:11:57,755 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:11:57,756 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:11:57,777 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 03:11:57,781 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 03:11:57,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:11:57,790 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 03:11:57,803 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 03:11:57,831 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 03:11:57,833 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:11:57,833 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:11:57,835 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:11:57,835 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:11:57,838 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 03:11:57,839 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 03:11:57,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:11:57,947 INFO L208 MainTranslator]: Completed translation [2022-12-14 03:11:57,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:57 WrapperNode [2022-12-14 03:11:57,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 03:11:57,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 03:11:57,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 03:11:57,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 03:11:57,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:57" (1/1) ... [2022-12-14 03:11:57,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:57" (1/1) ... [2022-12-14 03:11:57,986 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 60 [2022-12-14 03:11:57,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 03:11:57,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 03:11:57,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 03:11:57,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 03:11:57,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:57" (1/1) ... [2022-12-14 03:11:57,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:57" (1/1) ... [2022-12-14 03:11:57,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:57" (1/1) ... [2022-12-14 03:11:57,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:57" (1/1) ... [2022-12-14 03:11:58,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:57" (1/1) ... [2022-12-14 03:11:58,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:57" (1/1) ... [2022-12-14 03:11:58,002 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:57" (1/1) ... [2022-12-14 03:11:58,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:57" (1/1) ... [2022-12-14 03:11:58,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 03:11:58,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 03:11:58,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 03:11:58,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 03:11:58,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:57" (1/1) ... [2022-12-14 03:11:58,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:11:58,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:11:58,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 03:11:58,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 03:11:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 03:11:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 03:11:58,066 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 03:11:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 03:11:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 03:11:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 03:11:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 03:11:58,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 03:11:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 03:11:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 03:11:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 03:11:58,175 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 03:11:58,176 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 03:11:58,278 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 03:11:58,306 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 03:11:58,306 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 03:11:58,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:11:58 BoogieIcfgContainer [2022-12-14 03:11:58,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 03:11:58,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 03:11:58,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 03:11:58,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 03:11:58,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:11:57" (1/3) ... [2022-12-14 03:11:58,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1daa1d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:11:58, skipping insertion in model container [2022-12-14 03:11:58,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:57" (2/3) ... [2022-12-14 03:11:58,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1daa1d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:11:58, skipping insertion in model container [2022-12-14 03:11:58,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:11:58" (3/3) ... [2022-12-14 03:11:58,317 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_44_bad.i [2022-12-14 03:11:58,336 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 03:11:58,337 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 03:11:58,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:11:58,393 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;@382b8b3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:11:58,393 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 03:11:58,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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 03:11:58,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 03:11:58,406 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:11:58,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:11:58,407 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 03:11:58,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:11:58,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1162199373, now seen corresponding path program 1 times [2022-12-14 03:11:58,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:11:58,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606649471] [2022-12-14 03:11:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:11:58,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:11:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:11:58,664 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 03:11:58,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:11:58,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606649471] [2022-12-14 03:11:58,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606649471] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:11:58,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:11:58,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:11:58,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984884940] [2022-12-14 03:11:58,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:11:58,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:11:58,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:11:58,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:11:58,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:11:58,693 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 03:11:58,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:11:58,736 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-12-14 03:11:58,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:11:58,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-12-14 03:11:58,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:11:58,743 INFO L225 Difference]: With dead ends: 15 [2022-12-14 03:11:58,743 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 03:11:58,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:11:58,747 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:11:58,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 21 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:11:58,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 03:11:58,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 03:11:58,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 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 03:11:58,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-12-14 03:11:58,772 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-12-14 03:11:58,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:11:58,773 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-14 03:11:58,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 03:11:58,773 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 03:11:58,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 03:11:58,774 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:11:58,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:11:58,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 03:11:58,774 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 03:11:58,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:11:58,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1668442249, now seen corresponding path program 1 times [2022-12-14 03:11:58,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:11:58,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903306674] [2022-12-14 03:11:58,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:11:58,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:11:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:11:58,798 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 03:11:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:11:58,823 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 03:11:58,823 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 03:11:58,825 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 03:11:58,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 03:11:58,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 03:11:58,829 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 03:11:58,832 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 03:11:58,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:11:58 BoogieIcfgContainer [2022-12-14 03:11:58,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 03:11:58,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 03:11:58,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 03:11:58,848 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 03:11:58,849 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:11:58" (3/4) ... [2022-12-14 03:11:58,851 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 03:11:58,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 03:11:58,852 INFO L158 Benchmark]: Toolchain (without parser) took 1698.25ms. Allocated memory was 148.9MB in the beginning and 184.5MB in the end (delta: 35.7MB). Free memory was 110.3MB in the beginning and 90.8MB in the end (delta: 19.5MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2022-12-14 03:11:58,852 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 148.9MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 03:11:58,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 792.66ms. Allocated memory was 148.9MB in the beginning and 184.5MB in the end (delta: 35.7MB). Free memory was 109.8MB in the beginning and 151.6MB in the end (delta: -41.8MB). Peak memory consumption was 77.7MB. Max. memory is 16.1GB. [2022-12-14 03:11:58,853 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.59ms. Allocated memory is still 184.5MB. Free memory was 151.6MB in the beginning and 148.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 03:11:58,853 INFO L158 Benchmark]: Boogie Preprocessor took 18.87ms. Allocated memory is still 184.5MB. Free memory was 148.4MB in the beginning and 146.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 03:11:58,854 INFO L158 Benchmark]: RCFGBuilder took 302.33ms. Allocated memory is still 184.5MB. Free memory was 146.3MB in the beginning and 131.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 03:11:58,854 INFO L158 Benchmark]: TraceAbstraction took 536.84ms. Allocated memory is still 184.5MB. Free memory was 130.6MB in the beginning and 90.8MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-14 03:11:58,854 INFO L158 Benchmark]: Witness Printer took 3.15ms. Allocated memory is still 184.5MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 03:11:58,856 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 148.9MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 792.66ms. Allocated memory was 148.9MB in the beginning and 184.5MB in the end (delta: 35.7MB). Free memory was 109.8MB in the beginning and 151.6MB in the end (delta: -41.8MB). Peak memory consumption was 77.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.59ms. Allocated memory is still 184.5MB. Free memory was 151.6MB in the beginning and 148.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.87ms. Allocated memory is still 184.5MB. Free memory was 148.4MB in the beginning and 146.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 302.33ms. Allocated memory is still 184.5MB. Free memory was 146.3MB in the beginning and 131.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 536.84ms. Allocated memory is still 184.5MB. Free memory was 130.6MB in the beginning and 90.8MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 3.15ms. Allocated memory is still 184.5MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565. 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); [L1577] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1577] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483652:2147483651}, argv={2147483652:2147483651}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE190_Integer_Overflow__int_fgets_preinc_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] CALL funcPtr(data) [L1551] ++data VAL [\old(data)=2147483647, 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: 1551]: 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 03:11:58,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/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_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/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_0d80b84d-502b-47e0-9adb-238edb10c22b/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 3ef87f83559e1dd8a1a542027c4c4cca7e4866c9cc7a31bab297d26dc9767189 --- 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 03:12:00,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 03:12:00,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 03:12:00,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 03:12:00,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 03:12:00,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 03:12:00,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 03:12:00,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 03:12:00,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 03:12:00,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 03:12:00,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 03:12:00,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 03:12:00,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 03:12:00,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 03:12:00,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 03:12:00,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 03:12:00,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 03:12:00,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 03:12:00,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 03:12:00,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 03:12:00,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 03:12:00,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 03:12:00,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 03:12:00,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 03:12:00,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 03:12:00,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 03:12:00,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 03:12:00,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 03:12:00,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 03:12:00,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 03:12:00,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 03:12:00,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 03:12:00,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 03:12:00,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 03:12:00,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 03:12:00,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 03:12:00,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 03:12:00,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 03:12:00,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 03:12:00,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 03:12:00,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 03:12:00,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 03:12:00,463 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 03:12:00,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 03:12:00,463 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 03:12:00,463 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 03:12:00,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 03:12:00,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 03:12:00,464 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 03:12:00,464 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 03:12:00,464 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 03:12:00,464 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 03:12:00,464 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 03:12:00,464 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 03:12:00,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 03:12:00,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 03:12:00,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 03:12:00,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 03:12:00,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 03:12:00,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 03:12:00,466 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 03:12:00,466 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 03:12:00,466 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 03:12:00,466 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 03:12:00,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 03:12:00,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 03:12:00,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 03:12:00,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 03:12:00,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 03:12:00,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 03:12:00,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:12:00,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 03:12:00,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 03:12:00,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 03:12:00,467 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 03:12:00,467 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 03:12:00,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 03:12:00,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 03:12:00,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 03:12:00,468 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_0d80b84d-502b-47e0-9adb-238edb10c22b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ef87f83559e1dd8a1a542027c4c4cca7e4866c9cc7a31bab297d26dc9767189 [2022-12-14 03:12:00,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 03:12:00,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 03:12:00,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 03:12:00,697 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 03:12:00,698 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 03:12:00,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_44_bad.i [2022-12-14 03:12:03,275 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 03:12:03,493 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 03:12:03,494 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_44_bad.i [2022-12-14 03:12:03,508 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/data/8d020e0a1/74577ba97b6e43feb224d55fb41ea1f6/FLAG22666e3b1 [2022-12-14 03:12:03,519 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/data/8d020e0a1/74577ba97b6e43feb224d55fb41ea1f6 [2022-12-14 03:12:03,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 03:12:03,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 03:12:03,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 03:12:03,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 03:12:03,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 03:12:03,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:12:03" (1/1) ... [2022-12-14 03:12:03,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470e3969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:03, skipping insertion in model container [2022-12-14 03:12:03,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:12:03" (1/1) ... [2022-12-14 03:12:03,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 03:12:03,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 03:12:03,856 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 03:12:04,128 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 03:12:04,132 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:12:04,134 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:12:04,135 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:12:04,136 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:12:04,153 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 03:12:04,157 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 03:12:04,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:12:04,168 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 03:12:04,181 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 03:12:04,220 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 03:12:04,221 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:12:04,222 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:12:04,223 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:12:04,224 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:12:04,227 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 03:12:04,228 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 03:12:04,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:12:04,308 INFO L208 MainTranslator]: Completed translation [2022-12-14 03:12:04,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:04 WrapperNode [2022-12-14 03:12:04,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 03:12:04,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 03:12:04,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 03:12:04,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 03:12:04,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:04" (1/1) ... [2022-12-14 03:12:04,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:04" (1/1) ... [2022-12-14 03:12:04,359 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 59 [2022-12-14 03:12:04,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 03:12:04,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 03:12:04,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 03:12:04,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 03:12:04,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:04" (1/1) ... [2022-12-14 03:12:04,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:04" (1/1) ... [2022-12-14 03:12:04,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:04" (1/1) ... [2022-12-14 03:12:04,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:04" (1/1) ... [2022-12-14 03:12:04,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:04" (1/1) ... [2022-12-14 03:12:04,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:04" (1/1) ... [2022-12-14 03:12:04,383 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:04" (1/1) ... [2022-12-14 03:12:04,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:04" (1/1) ... [2022-12-14 03:12:04,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 03:12:04,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 03:12:04,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 03:12:04,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 03:12:04,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:04" (1/1) ... [2022-12-14 03:12:04,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:12:04,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:12:04,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 03:12:04,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 03:12:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 03:12:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 03:12:04,448 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 03:12:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 03:12:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 03:12:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 03:12:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 03:12:04,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 03:12:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 03:12:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 03:12:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 03:12:04,588 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 03:12:04,590 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 03:12:04,700 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 03:12:04,704 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 03:12:04,704 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 03:12:04,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:12:04 BoogieIcfgContainer [2022-12-14 03:12:04,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 03:12:04,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 03:12:04,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 03:12:04,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 03:12:04,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:12:03" (1/3) ... [2022-12-14 03:12:04,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5d196b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:12:04, skipping insertion in model container [2022-12-14 03:12:04,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:12:04" (2/3) ... [2022-12-14 03:12:04,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5d196b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:12:04, skipping insertion in model container [2022-12-14 03:12:04,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:12:04" (3/3) ... [2022-12-14 03:12:04,712 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_44_bad.i [2022-12-14 03:12:04,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 03:12:04,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 03:12:04,760 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:12:04,765 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;@56e9781b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:12:04,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 03:12:04,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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 03:12:04,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 03:12:04,774 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:12:04,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:12:04,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 03:12:04,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:12:04,779 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2022-12-14 03:12:04,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 03:12:04,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223228024] [2022-12-14 03:12:04,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:12:04,789 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 03:12:04,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 03:12:04,790 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/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 03:12:04,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/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 03:12:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:12:04,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 03:12:04,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:12:04,944 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 03:12:04,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:12:04,944 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 03:12:04,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223228024] [2022-12-14 03:12:04,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223228024] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:12:04,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:12:04,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 03:12:04,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974730623] [2022-12-14 03:12:04,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:12:04,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 03:12:04,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 03:12:04,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 03:12:04,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 03:12:04,977 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 03:12:04,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:12:04,991 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-12-14 03:12:04,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 03:12:04,993 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 03:12:04,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:12:04,997 INFO L225 Difference]: With dead ends: 24 [2022-12-14 03:12:04,997 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 03:12:04,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 03:12:05,002 INFO L413 NwaCegarLoop]: 26 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, 26 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 03:12:05,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:12:05,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 03:12:05,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 03:12:05,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 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 03:12:05,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-14 03:12:05,026 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-14 03:12:05,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:12:05,027 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-14 03:12:05,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 03:12:05,027 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-14 03:12:05,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 03:12:05,028 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:12:05,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:12:05,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/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 03:12:05,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/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 03:12:05,231 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 03:12:05,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:12:05,233 INFO L85 PathProgramCache]: Analyzing trace with hash 756176556, now seen corresponding path program 1 times [2022-12-14 03:12:05,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 03:12:05,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204838561] [2022-12-14 03:12:05,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:12:05,237 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 03:12:05,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 03:12:05,241 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/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 03:12:05,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/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 03:12:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:12:05,432 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 03:12:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:12:05,487 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 03:12:05,487 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 03:12:05,489 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 03:12:05,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 03:12:05,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/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 03:12:05,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/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 03:12:05,702 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 03:12:05,711 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 03:12:05,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:12:05 BoogieIcfgContainer [2022-12-14 03:12:05,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 03:12:05,773 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 03:12:05,773 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 03:12:05,774 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 03:12:05,775 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:12:04" (3/4) ... [2022-12-14 03:12:05,782 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 03:12:05,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 03:12:05,784 INFO L158 Benchmark]: Toolchain (without parser) took 2261.04ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 42.3MB in the beginning and 39.0MB in the end (delta: 3.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-12-14 03:12:05,784 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 30.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 03:12:05,785 INFO L158 Benchmark]: CACSL2BoogieTranslator took 786.16ms. Allocated memory is still 67.1MB. Free memory was 42.1MB in the beginning and 38.8MB in the end (delta: 3.4MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2022-12-14 03:12:05,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.79ms. Allocated memory is still 67.1MB. Free memory was 38.8MB in the beginning and 35.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 03:12:05,787 INFO L158 Benchmark]: Boogie Preprocessor took 28.37ms. Allocated memory is still 67.1MB. Free memory was 35.8MB in the beginning and 33.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 03:12:05,788 INFO L158 Benchmark]: RCFGBuilder took 316.93ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 33.7MB in the beginning and 49.2MB in the end (delta: -15.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 03:12:05,789 INFO L158 Benchmark]: TraceAbstraction took 1064.18ms. Allocated memory is still 81.8MB. Free memory was 48.8MB in the beginning and 39.5MB in the end (delta: 9.2MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-12-14 03:12:05,789 INFO L158 Benchmark]: Witness Printer took 9.33ms. Allocated memory is still 81.8MB. Free memory was 39.5MB in the beginning and 39.0MB in the end (delta: 509.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 03:12:05,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 30.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 786.16ms. Allocated memory is still 67.1MB. Free memory was 42.1MB in the beginning and 38.8MB in the end (delta: 3.4MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.79ms. Allocated memory is still 67.1MB. Free memory was 38.8MB in the beginning and 35.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.37ms. Allocated memory is still 67.1MB. Free memory was 35.8MB in the beginning and 33.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 316.93ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 33.7MB in the beginning and 49.2MB in the end (delta: -15.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1064.18ms. Allocated memory is still 81.8MB. Free memory was 48.8MB in the beginning and 39.5MB in the end (delta: 9.2MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Witness Printer took 9.33ms. Allocated memory is still 81.8MB. Free memory was 39.5MB in the beginning and 39.0MB in the end (delta: 509.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565. 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] [L1577] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1577] 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] [L1578] CALL CWE190_Integer_Overflow__int_fgets_preinc_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] CALL funcPtr(data) [L1551] ++data VAL [\old(data)=2147483647, 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 26 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 74 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 03:12:05,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d80b84d-502b-47e0-9adb-238edb10c22b/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