./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur --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 9559b27db3126f817e39cf5fb1b89427d83249b605bbac6501c6e4936d8cb1c7 --- 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-38b53e6 [2022-11-26 00:50:25,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:50:25,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:50:26,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:50:26,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:50:26,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:50:26,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:50:26,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:50:26,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:50:26,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:50:26,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:50:26,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:50:26,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:50:26,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:50:26,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:50:26,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:50:26,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:50:26,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:50:26,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:50:26,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:50:26,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:50:26,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:50:26,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:50:26,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:50:26,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:50:26,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:50:26,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:50:26,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:50:26,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:50:26,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:50:26,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:50:26,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:50:26,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:50:26,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:50:26,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:50:26,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:50:26,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:50:26,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:50:26,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:50:26,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:50:26,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:50:26,067 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:50:26,093 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:50:26,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:50:26,098 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:50:26,098 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:50:26,099 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:50:26,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:50:26,100 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:50:26,100 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:50:26,100 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:50:26,101 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:50:26,102 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:50:26,102 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:50:26,102 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:50:26,102 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:50:26,102 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:50:26,103 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:50:26,103 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:50:26,103 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:50:26,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:50:26,104 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:50:26,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:50:26,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:50:26,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:50:26,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:50:26,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:50:26,106 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:50:26,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:50:26,106 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:50:26,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:50:26,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:50:26,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:50:26,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:50:26,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:50:26,108 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:50:26,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:50:26,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:50:26,108 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:50:26,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:50:26,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:50:26,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:50:26,109 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_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9559b27db3126f817e39cf5fb1b89427d83249b605bbac6501c6e4936d8cb1c7 [2022-11-26 00:50:26,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:50:26,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:50:26,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:50:26,465 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:50:26,465 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:50:26,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i [2022-11-26 00:50:29,542 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:50:29,990 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:50:29,991 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i [2022-11-26 00:50:30,029 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/data/b93c6c448/e216534906ea47d6adccf884e6ef1359/FLAGd8978cb8e [2022-11-26 00:50:30,046 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/data/b93c6c448/e216534906ea47d6adccf884e6ef1359 [2022-11-26 00:50:30,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:50:30,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:50:30,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:50:30,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:50:30,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:50:30,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:50:30" (1/1) ... [2022-11-26 00:50:30,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b5f56e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:30, skipping insertion in model container [2022-11-26 00:50:30,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:50:30" (1/1) ... [2022-11-26 00:50:30,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:50:30,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:50:30,577 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:50:31,247 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:50:31,255 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:50:31,257 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:50:31,261 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:50:31,263 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:50:31,286 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:50:31,291 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:50:31,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:50:31,303 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:50:31,323 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:50:31,374 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:50:31,376 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:50:31,377 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:50:31,379 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:50:31,380 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:50:31,384 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:50:31,386 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:50:31,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:50:31,521 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:50:31,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:31 WrapperNode [2022-11-26 00:50:31,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:50:31,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:50:31,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:50:31,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:50:31,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:31" (1/1) ... [2022-11-26 00:50:31,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:31" (1/1) ... [2022-11-26 00:50:31,608 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-11-26 00:50:31,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:50:31,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:50:31,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:50:31,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:50:31,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:31" (1/1) ... [2022-11-26 00:50:31,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:31" (1/1) ... [2022-11-26 00:50:31,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:31" (1/1) ... [2022-11-26 00:50:31,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:31" (1/1) ... [2022-11-26 00:50:31,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:31" (1/1) ... [2022-11-26 00:50:31,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:31" (1/1) ... [2022-11-26 00:50:31,657 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:31" (1/1) ... [2022-11-26 00:50:31,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:31" (1/1) ... [2022-11-26 00:50:31,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:50:31,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:50:31,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:50:31,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:50:31,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:31" (1/1) ... [2022-11-26 00:50:31,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:50:31,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:50:31,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:50:31,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:50:31,748 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 00:50:31,748 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:50:31,748 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:50:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:50:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:50:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:50:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:50:31,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:50:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:50:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:50:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:50:32,008 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:50:32,011 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:50:32,187 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:50:32,256 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:50:32,264 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:50:32,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:50:32 BoogieIcfgContainer [2022-11-26 00:50:32,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:50:32,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:50:32,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:50:32,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:50:32,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:50:30" (1/3) ... [2022-11-26 00:50:32,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461d0621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:50:32, skipping insertion in model container [2022-11-26 00:50:32,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:31" (2/3) ... [2022-11-26 00:50:32,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461d0621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:50:32, skipping insertion in model container [2022-11-26 00:50:32,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:50:32" (3/3) ... [2022-11-26 00:50:32,279 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i [2022-11-26 00:50:32,306 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:50:32,306 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:50:32,364 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:50:32,372 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;@667c563c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:50:32,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:50:32,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:50:32,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:50:32,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:32,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:32,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:50:32,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:32,395 INFO L85 PathProgramCache]: Analyzing trace with hash 805598275, now seen corresponding path program 1 times [2022-11-26 00:50:32,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:32,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939046699] [2022-11-26 00:50:32,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:32,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:32,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:32,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:32,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939046699] [2022-11-26 00:50:32,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939046699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:32,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:32,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:50:32,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975099959] [2022-11-26 00:50:32,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:32,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:32,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:32,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:32,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:32,711 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:50:32,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:32,760 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2022-11-26 00:50:32,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:32,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-11-26 00:50:32,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:32,769 INFO L225 Difference]: With dead ends: 31 [2022-11-26 00:50:32,770 INFO L226 Difference]: Without dead ends: 15 [2022-11-26 00:50:32,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:32,777 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:32,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:50:32,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-26 00:50:32,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-26 00:50:32,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:50:32,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-26 00:50:32,815 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2022-11-26 00:50:32,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:32,817 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-26 00:50:32,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:50:32,817 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-26 00:50:32,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:50:32,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:32,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:32,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:50:32,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:50:32,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:32,822 INFO L85 PathProgramCache]: Analyzing trace with hash 789107816, now seen corresponding path program 1 times [2022-11-26 00:50:32,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:32,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216132191] [2022-11-26 00:50:32,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:32,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:32,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:32,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:32,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216132191] [2022-11-26 00:50:32,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216132191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:32,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:32,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:50:32,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112863588] [2022-11-26 00:50:32,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:32,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:32,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:32,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:32,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:32,957 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:50:32,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:32,971 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-11-26 00:50:32,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:32,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-26 00:50:32,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:32,973 INFO L225 Difference]: With dead ends: 15 [2022-11-26 00:50:32,973 INFO L226 Difference]: Without dead ends: 14 [2022-11-26 00:50:32,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:32,975 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:32,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 19 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:50:32,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-26 00:50:32,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-26 00:50:32,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:50:32,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-26 00:50:32,981 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-11-26 00:50:32,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:32,982 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-26 00:50:32,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:50:32,982 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-26 00:50:32,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:50:32,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:32,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:32,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:50:32,984 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:50:32,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:32,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1307461414, now seen corresponding path program 1 times [2022-11-26 00:50:32,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:32,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130033135] [2022-11-26 00:50:32,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:32,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:50:33,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:50:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:50:33,049 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:50:33,049 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:50:33,050 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:50:33,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:50:33,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:50:33,056 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-26 00:50:33,060 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:50:33,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:50:33 BoogieIcfgContainer [2022-11-26 00:50:33,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:50:33,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:50:33,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:50:33,087 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:50:33,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:50:32" (3/4) ... [2022-11-26 00:50:33,091 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:50:33,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:50:33,092 INFO L158 Benchmark]: Toolchain (without parser) took 3041.58ms. Allocated memory is still 151.0MB. Free memory was 121.1MB in the beginning and 75.5MB in the end (delta: 45.6MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2022-11-26 00:50:33,093 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:50:33,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1470.90ms. Allocated memory is still 151.0MB. Free memory was 121.1MB in the beginning and 57.5MB in the end (delta: 63.5MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-26 00:50:33,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.79ms. Allocated memory is still 151.0MB. Free memory was 57.5MB in the beginning and 54.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:50:33,094 INFO L158 Benchmark]: Boogie Preprocessor took 51.10ms. Allocated memory is still 151.0MB. Free memory was 54.6MB in the beginning and 52.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:50:33,095 INFO L158 Benchmark]: RCFGBuilder took 606.17ms. Allocated memory is still 151.0MB. Free memory was 52.7MB in the beginning and 118.4MB in the end (delta: -65.7MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2022-11-26 00:50:33,095 INFO L158 Benchmark]: TraceAbstraction took 816.94ms. Allocated memory is still 151.0MB. Free memory was 117.4MB in the beginning and 75.5MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-26 00:50:33,096 INFO L158 Benchmark]: Witness Printer took 4.47ms. Allocated memory is still 151.0MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:50:33,098 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1470.90ms. Allocated memory is still 151.0MB. Free memory was 121.1MB in the beginning and 57.5MB in the end (delta: 63.5MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.79ms. Allocated memory is still 151.0MB. Free memory was 57.5MB in the beginning and 54.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.10ms. Allocated memory is still 151.0MB. Free memory was 54.6MB in the beginning and 52.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 606.17ms. Allocated memory is still 151.0MB. Free memory was 52.7MB in the beginning and 118.4MB in the end (delta: -65.7MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 816.94ms. Allocated memory is still 151.0MB. Free memory was 117.4MB in the beginning and 75.5MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.47ms. Allocated memory is still 151.0MB. Free memory is still 75.5MB. 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: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static const int STATIC_CONST_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 0; [L1580] 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}, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [\old(argc)=1073741827, argc=1073741827, argv={1073741829:1073741828}, argv={1073741829:1073741828}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_multiply_04_bad() [L1552] int data; [L1553] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1568] COND TRUE \read(STATIC_CONST_TRUE) VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1570] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1572] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] - UnprovableResult [Line: 1572]: 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 27 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:50:33,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/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_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur --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 9559b27db3126f817e39cf5fb1b89427d83249b605bbac6501c6e4936d8cb1c7 --- 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-38b53e6 [2022-11-26 00:50:35,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:50:35,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:50:35,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:50:35,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:50:35,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:50:35,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:50:35,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:50:35,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:50:35,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:50:35,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:50:35,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:50:35,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:50:35,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:50:35,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:50:35,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:50:35,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:50:35,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:50:35,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:50:35,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:50:35,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:50:35,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:50:35,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:50:35,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:50:35,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:50:35,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:50:35,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:50:35,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:50:35,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:50:35,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:50:35,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:50:35,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:50:35,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:50:35,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:50:35,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:50:35,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:50:35,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:50:35,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:50:35,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:50:35,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:50:35,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:50:35,729 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 00:50:35,768 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:50:35,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:50:35,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:50:35,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:50:35,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:50:35,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:50:35,771 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:50:35,771 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:50:35,772 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:50:35,772 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:50:35,773 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:50:35,773 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:50:35,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:50:35,774 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:50:35,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:50:35,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:50:35,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:50:35,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:50:35,775 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:50:35,776 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:50:35,776 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:50:35,776 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:50:35,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:50:35,777 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:50:35,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:50:35,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:50:35,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:50:35,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:50:35,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:50:35,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:50:35,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:50:35,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:50:35,779 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:50:35,779 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:50:35,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:50:35,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:50:35,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:50:35,780 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_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9559b27db3126f817e39cf5fb1b89427d83249b605bbac6501c6e4936d8cb1c7 [2022-11-26 00:50:36,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:50:36,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:50:36,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:50:36,222 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:50:36,222 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:50:36,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i [2022-11-26 00:50:39,576 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:50:39,949 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:50:39,950 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i [2022-11-26 00:50:39,970 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/data/9b1a3a1df/2cc42cdb2a894d14acb1095cc467babf/FLAG18be40efa [2022-11-26 00:50:39,987 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/data/9b1a3a1df/2cc42cdb2a894d14acb1095cc467babf [2022-11-26 00:50:39,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:50:39,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:50:39,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:50:39,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:50:40,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:50:40,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:50:39" (1/1) ... [2022-11-26 00:50:40,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22859a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:40, skipping insertion in model container [2022-11-26 00:50:40,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:50:39" (1/1) ... [2022-11-26 00:50:40,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:50:40,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:50:40,492 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:50:40,931 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:50:40,936 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:50:40,937 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:50:40,939 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:50:40,940 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:50:40,962 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:50:40,967 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:50:40,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:50:40,985 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:50:41,005 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:50:41,075 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:50:41,077 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:50:41,078 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:50:41,080 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:50:41,081 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:50:41,101 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:50:41,103 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:50:41,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:50:41,240 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:50:41,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:41 WrapperNode [2022-11-26 00:50:41,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:50:41,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:50:41,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:50:41,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:50:41,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:41" (1/1) ... [2022-11-26 00:50:41,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:41" (1/1) ... [2022-11-26 00:50:41,298 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2022-11-26 00:50:41,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:50:41,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:50:41,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:50:41,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:50:41,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:41" (1/1) ... [2022-11-26 00:50:41,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:41" (1/1) ... [2022-11-26 00:50:41,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:41" (1/1) ... [2022-11-26 00:50:41,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:41" (1/1) ... [2022-11-26 00:50:41,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:41" (1/1) ... [2022-11-26 00:50:41,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:41" (1/1) ... [2022-11-26 00:50:41,325 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:41" (1/1) ... [2022-11-26 00:50:41,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:41" (1/1) ... [2022-11-26 00:50:41,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:50:41,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:50:41,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:50:41,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:50:41,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:41" (1/1) ... [2022-11-26 00:50:41,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:50:41,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:50:41,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:50:41,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:50:41,422 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 00:50:41,422 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:50:41,422 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:50:41,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:50:41,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:50:41,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:50:41,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:50:41,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:50:41,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:50:41,423 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:50:41,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-26 00:50:41,640 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:50:41,642 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:50:41,873 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:50:41,883 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:50:41,885 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:50:41,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:50:41 BoogieIcfgContainer [2022-11-26 00:50:41,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:50:41,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:50:41,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:50:41,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:50:41,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:50:39" (1/3) ... [2022-11-26 00:50:41,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479826e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:50:41, skipping insertion in model container [2022-11-26 00:50:41,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:50:41" (2/3) ... [2022-11-26 00:50:41,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479826e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:50:41, skipping insertion in model container [2022-11-26 00:50:41,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:50:41" (3/3) ... [2022-11-26 00:50:41,902 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i [2022-11-26 00:50:41,923 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:50:41,923 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:50:41,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:50:41,982 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;@6095d7bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:50:41,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:50:41,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 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) [2022-11-26 00:50:42,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:50:42,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:42,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:42,005 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:50:42,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:42,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1426013167, now seen corresponding path program 1 times [2022-11-26 00:50:42,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:50:42,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141919523] [2022-11-26 00:50:42,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:42,033 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 [2022-11-26 00:50:42,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:50:42,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/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) [2022-11-26 00:50:42,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:50:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:42,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:50:42,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:50:42,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:42,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:50:42,304 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:50:42,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141919523] [2022-11-26 00:50:42,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141919523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:42,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:42,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:50:42,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864404837] [2022-11-26 00:50:42,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:42,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:42,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:50:42,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:42,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:42,368 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:50:42,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:42,401 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2022-11-26 00:50:42,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:42,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-26 00:50:42,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:42,411 INFO L225 Difference]: With dead ends: 42 [2022-11-26 00:50:42,412 INFO L226 Difference]: Without dead ends: 18 [2022-11-26 00:50:42,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:42,421 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:42,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:50:42,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-26 00:50:42,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-26 00:50:42,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-11-26 00:50:42,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-26 00:50:42,470 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-11-26 00:50:42,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:42,473 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-26 00:50:42,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:50:42,474 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-26 00:50:42,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:50:42,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:42,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:42,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:50:42,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:50:42,684 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:50:42,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:42,685 INFO L85 PathProgramCache]: Analyzing trace with hash -600807242, now seen corresponding path program 1 times [2022-11-26 00:50:42,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:50:42,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675117451] [2022-11-26 00:50:42,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:42,694 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 [2022-11-26 00:50:42,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:50:42,696 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/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) [2022-11-26 00:50:42,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:50:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:42,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:50:42,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:50:42,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:42,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:50:42,807 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:50:42,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675117451] [2022-11-26 00:50:42,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675117451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:42,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:42,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:50:42,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852243445] [2022-11-26 00:50:42,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:42,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:42,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:50:42,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:42,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:42,811 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:50:42,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:42,827 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-11-26 00:50:42,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:42,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-26 00:50:42,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:42,829 INFO L225 Difference]: With dead ends: 18 [2022-11-26 00:50:42,829 INFO L226 Difference]: Without dead ends: 17 [2022-11-26 00:50:42,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:42,831 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:42,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:50:42,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-26 00:50:42,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-26 00:50:42,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:50:42,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-26 00:50:42,844 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2022-11-26 00:50:42,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:42,846 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-26 00:50:42,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:50:42,847 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-26 00:50:42,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:50:42,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:42,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:42,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:50:43,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:50:43,061 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:50:43,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:43,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1445155252, now seen corresponding path program 1 times [2022-11-26 00:50:43,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:50:43,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338725524] [2022-11-26 00:50:43,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:43,063 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:50:43,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:50:43,065 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/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) [2022-11-26 00:50:43,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-26 00:50:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:50:43,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:50:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:50:43,260 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:50:43,261 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:50:43,262 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:50:43,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:50:43,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:50:43,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:50:43,468 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-26 00:50:43,472 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:50:43,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:50:43 BoogieIcfgContainer [2022-11-26 00:50:43,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:50:43,512 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:50:43,512 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:50:43,513 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:50:43,513 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:50:41" (3/4) ... [2022-11-26 00:50:43,516 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:50:43,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:50:43,517 INFO L158 Benchmark]: Toolchain (without parser) took 3525.92ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 45.2MB in the beginning and 62.4MB in the end (delta: -17.2MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2022-11-26 00:50:43,517 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:50:43,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1244.76ms. Allocated memory is still 88.1MB. Free memory was 44.9MB in the beginning and 37.8MB in the end (delta: 7.1MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-11-26 00:50:43,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.61ms. Allocated memory is still 88.1MB. Free memory was 37.8MB in the beginning and 34.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:50:43,519 INFO L158 Benchmark]: Boogie Preprocessor took 32.08ms. Allocated memory is still 88.1MB. Free memory was 34.9MB in the beginning and 32.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:50:43,519 INFO L158 Benchmark]: RCFGBuilder took 556.09ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 32.8MB in the beginning and 69.6MB in the end (delta: -36.8MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-11-26 00:50:43,520 INFO L158 Benchmark]: TraceAbstraction took 1620.32ms. Allocated memory is still 109.1MB. Free memory was 69.0MB in the beginning and 62.4MB in the end (delta: 6.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-11-26 00:50:43,520 INFO L158 Benchmark]: Witness Printer took 4.25ms. Allocated memory is still 109.1MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:50:43,522 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1244.76ms. Allocated memory is still 88.1MB. Free memory was 44.9MB in the beginning and 37.8MB in the end (delta: 7.1MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.61ms. Allocated memory is still 88.1MB. Free memory was 37.8MB in the beginning and 34.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.08ms. Allocated memory is still 88.1MB. Free memory was 34.9MB in the beginning and 32.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 556.09ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 32.8MB in the beginning and 69.6MB in the end (delta: -36.8MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1620.32ms. Allocated memory is still 109.1MB. Free memory was 69.0MB in the beginning and 62.4MB in the end (delta: 6.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Witness Printer took 4.25ms. Allocated memory is still 109.1MB. Free memory is still 62.4MB. 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: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static const int STATIC_CONST_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1580] 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}, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1414] COND TRUE line != ((void *)0) [L1580] 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_multiply_04_bad() [L1552] int data; [L1553] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1568] COND TRUE \read(STATIC_CONST_TRUE) VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1570] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1572] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] - UnprovableResult [Line: 1572]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 44 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 121 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:50:43,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360b0fab-a8cb-45dc-8172-2d8f97c935dd/bin/utaipan-ByfvJB40ur/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample