./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba --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 65e8a0a9ca254c7952538dbe77a1c5314ecc616f0d4fbd62f6ebdc2d7f1ee180 --- 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-b5237d8 [2022-11-22 00:08:03,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:08:03,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:08:04,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:08:04,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:08:04,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:08:04,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:08:04,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:08:04,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:08:04,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:08:04,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:08:04,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:08:04,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:08:04,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:08:04,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:08:04,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:08:04,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:08:04,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:08:04,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:08:04,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:08:04,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:08:04,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:08:04,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:08:04,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:08:04,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:08:04,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:08:04,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:08:04,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:08:04,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:08:04,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:08:04,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:08:04,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:08:04,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:08:04,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:08:04,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:08:04,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:08:04,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:08:04,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:08:04,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:08:04,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:08:04,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:08:04,101 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 00:08:04,142 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:08:04,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:08:04,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:08:04,144 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:08:04,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:08:04,145 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:08:04,145 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:08:04,145 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:08:04,145 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:08:04,146 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:08:04,147 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:08:04,147 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:08:04,147 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:08:04,147 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:08:04,148 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:08:04,148 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:08:04,148 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:08:04,148 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:08:04,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:08:04,149 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:08:04,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:08:04,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:08:04,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:08:04,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:08:04,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:08:04,151 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:08:04,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:08:04,151 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:08:04,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:08:04,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:08:04,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:08:04,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:08:04,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:08:04,153 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:08:04,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:08:04,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:08:04,154 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:08:04,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:08:04,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:08:04,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:08:04,155 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_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65e8a0a9ca254c7952538dbe77a1c5314ecc616f0d4fbd62f6ebdc2d7f1ee180 [2022-11-22 00:08:04,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:08:04,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:08:04,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:08:04,503 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:08:04,504 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:08:04,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i [2022-11-22 00:08:07,581 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:08:07,931 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:08:07,932 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i [2022-11-22 00:08:07,950 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/data/ac9938945/1bc8c472d01a4b08bafbeb001025fa19/FLAGec5238441 [2022-11-22 00:08:07,969 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/data/ac9938945/1bc8c472d01a4b08bafbeb001025fa19 [2022-11-22 00:08:07,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:08:07,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:08:07,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:08:07,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:08:07,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:08:07,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:08:07" (1/1) ... [2022-11-22 00:08:07,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27aba446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:07, skipping insertion in model container [2022-11-22 00:08:07,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:08:07" (1/1) ... [2022-11-22 00:08:07,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:08:08,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:08:08,467 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 00:08:08,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:08:09,000 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:08:09,020 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 00:08:09,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:08:09,258 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:08:09,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:09 WrapperNode [2022-11-22 00:08:09,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:08:09,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:08:09,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:08:09,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:08:09,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:09" (1/1) ... [2022-11-22 00:08:09,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:09" (1/1) ... [2022-11-22 00:08:09,353 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-11-22 00:08:09,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:08:09,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:08:09,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:08:09,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:08:09,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:09" (1/1) ... [2022-11-22 00:08:09,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:09" (1/1) ... [2022-11-22 00:08:09,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:09" (1/1) ... [2022-11-22 00:08:09,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:09" (1/1) ... [2022-11-22 00:08:09,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:09" (1/1) ... [2022-11-22 00:08:09,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:09" (1/1) ... [2022-11-22 00:08:09,374 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:09" (1/1) ... [2022-11-22 00:08:09,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:09" (1/1) ... [2022-11-22 00:08:09,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:08:09,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:08:09,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:08:09,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:08:09,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:09" (1/1) ... [2022-11-22 00:08:09,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:08:09,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:08:09,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:08:09,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:08:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-22 00:08:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-22 00:08:09,477 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-22 00:08:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:08:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 00:08:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:08:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:08:09,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:08:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:08:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-22 00:08:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:08:09,669 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:08:09,671 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:08:09,814 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:08:09,855 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:08:09,856 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 00:08:09,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:08:09 BoogieIcfgContainer [2022-11-22 00:08:09,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:08:09,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:08:09,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:08:09,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:08:09,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:08:07" (1/3) ... [2022-11-22 00:08:09,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@426b7e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:08:09, skipping insertion in model container [2022-11-22 00:08:09,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:09" (2/3) ... [2022-11-22 00:08:09,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@426b7e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:08:09, skipping insertion in model container [2022-11-22 00:08:09,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:08:09" (3/3) ... [2022-11-22 00:08:09,877 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i [2022-11-22 00:08:09,898 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:08:09,899 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 00:08:09,961 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:08:09,969 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;@6cd3e9f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:08:09,969 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 00:08:09,974 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) [2022-11-22 00:08:09,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 00:08:09,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:08:09,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:08:09,983 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 00:08:09,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:08:09,991 INFO L85 PathProgramCache]: Analyzing trace with hash 805598275, now seen corresponding path program 1 times [2022-11-22 00:08:10,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:08:10,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195276771] [2022-11-22 00:08:10,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:08:10,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:08:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:08:10,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:08:10,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:08:10,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195276771] [2022-11-22 00:08:10,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195276771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:08:10,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:08:10,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:08:10,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206623996] [2022-11-22 00:08:10,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:08:10,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:08:10,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:08:10,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:08:10,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:08:10,321 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) [2022-11-22 00:08:10,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:08:10,386 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2022-11-22 00:08:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:08:10,394 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 [2022-11-22 00:08:10,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:08:10,401 INFO L225 Difference]: With dead ends: 31 [2022-11-22 00:08:10,401 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 00:08:10,404 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 [2022-11-22 00:08:10,407 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 [2022-11-22 00:08:10,409 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] [2022-11-22 00:08:10,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 00:08:10,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-22 00:08:10,447 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) [2022-11-22 00:08:10,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-22 00:08:10,449 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2022-11-22 00:08:10,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:08:10,451 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-22 00:08:10,452 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) [2022-11-22 00:08:10,452 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-22 00:08:10,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 00:08:10,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:08:10,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:08:10,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:08:10,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 00:08:10,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:08:10,457 INFO L85 PathProgramCache]: Analyzing trace with hash 789107816, now seen corresponding path program 1 times [2022-11-22 00:08:10,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:08:10,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565234086] [2022-11-22 00:08:10,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:08:10,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:08:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:08:10,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:08:10,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:08:10,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565234086] [2022-11-22 00:08:10,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565234086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:08:10,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:08:10,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:08:10,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451873164] [2022-11-22 00:08:10,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:08:10,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:08:10,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:08:10,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:08:10,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:08:10,662 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) [2022-11-22 00:08:10,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:08:10,683 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-11-22 00:08:10,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:08:10,684 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 [2022-11-22 00:08:10,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:08:10,684 INFO L225 Difference]: With dead ends: 15 [2022-11-22 00:08:10,685 INFO L226 Difference]: Without dead ends: 14 [2022-11-22 00:08:10,685 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 [2022-11-22 00:08:10,686 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 [2022-11-22 00:08:10,687 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] [2022-11-22 00:08:10,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-22 00:08:10,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-22 00:08:10,690 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) [2022-11-22 00:08:10,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-22 00:08:10,691 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-11-22 00:08:10,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:08:10,692 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-22 00:08:10,692 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) [2022-11-22 00:08:10,692 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-22 00:08:10,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 00:08:10,693 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:08:10,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:08:10,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:08:10,693 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 00:08:10,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:08:10,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1307461414, now seen corresponding path program 1 times [2022-11-22 00:08:10,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:08:10,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746535722] [2022-11-22 00:08:10,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:08:10,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:08:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:08:10,751 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 00:08:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:08:10,787 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 00:08:10,787 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 00:08:10,788 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-22 00:08:10,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-22 00:08:10,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:08:10,795 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-22 00:08:10,799 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:08:10,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:08:10 BoogieIcfgContainer [2022-11-22 00:08:10,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:08:10,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:08:10,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:08:10,827 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:08:10,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:08:09" (3/4) ... [2022-11-22 00:08:10,831 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 00:08:10,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:08:10,832 INFO L158 Benchmark]: Toolchain (without parser) took 2857.15ms. Allocated memory is still 186.6MB. Free memory was 141.7MB in the beginning and 85.9MB in the end (delta: 55.8MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2022-11-22 00:08:10,832 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 136.3MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:08:10,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1281.85ms. Allocated memory is still 186.6MB. Free memory was 141.7MB in the beginning and 147.7MB in the end (delta: -6.0MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2022-11-22 00:08:10,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.17ms. Allocated memory is still 186.6MB. Free memory was 147.7MB in the beginning and 144.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:08:10,834 INFO L158 Benchmark]: Boogie Preprocessor took 24.46ms. Allocated memory is still 186.6MB. Free memory was 144.6MB in the beginning and 142.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:08:10,835 INFO L158 Benchmark]: RCFGBuilder took 487.45ms. Allocated memory is still 186.6MB. Free memory was 142.5MB in the beginning and 127.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 00:08:10,835 INFO L158 Benchmark]: TraceAbstraction took 956.54ms. Allocated memory is still 186.6MB. Free memory was 127.8MB in the beginning and 85.9MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-22 00:08:10,836 INFO L158 Benchmark]: Witness Printer took 4.60ms. Allocated memory is still 186.6MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:08:10,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 136.3MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1281.85ms. Allocated memory is still 186.6MB. Free memory was 141.7MB in the beginning and 147.7MB in the end (delta: -6.0MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.17ms. Allocated memory is still 186.6MB. Free memory was 147.7MB in the beginning and 144.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.46ms. Allocated memory is still 186.6MB. Free memory was 144.6MB in the beginning and 142.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 487.45ms. Allocated memory is still 186.6MB. Free memory was 142.5MB in the beginning and 127.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 956.54ms. Allocated memory is still 186.6MB. Free memory was 127.8MB in the beginning and 85.9MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.60ms. Allocated memory is still 186.6MB. Free memory is still 85.9MB. 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 CWE191_Integer_Underflow__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=-1073741825, 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=-1073741825, 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=-1073741825, 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=-1073741825, 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: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s 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, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 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 [2022-11-22 00:08:10,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba --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 65e8a0a9ca254c7952538dbe77a1c5314ecc616f0d4fbd62f6ebdc2d7f1ee180 --- 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-b5237d8 [2022-11-22 00:08:13,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:08:13,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:08:13,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:08:13,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:08:13,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:08:13,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:08:13,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:08:13,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:08:13,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:08:13,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:08:13,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:08:13,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:08:13,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:08:13,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:08:13,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:08:13,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:08:13,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:08:13,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:08:13,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:08:13,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:08:13,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:08:13,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:08:13,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:08:13,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:08:13,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:08:13,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:08:13,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:08:13,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:08:13,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:08:13,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:08:13,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:08:13,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:08:13,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:08:13,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:08:13,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:08:13,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:08:13,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:08:13,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:08:13,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:08:13,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:08:13,437 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-22 00:08:13,481 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:08:13,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:08:13,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:08:13,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:08:13,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:08:13,486 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:08:13,486 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:08:13,487 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:08:13,487 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:08:13,487 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:08:13,488 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:08:13,488 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:08:13,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:08:13,489 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:08:13,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:08:13,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:08:13,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:08:13,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:08:13,490 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 00:08:13,491 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 00:08:13,491 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:08:13,491 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 00:08:13,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:08:13,491 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:08:13,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:08:13,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:08:13,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 00:08:13,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:08:13,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:08:13,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:08:13,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:08:13,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:08:13,494 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 00:08:13,494 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 00:08:13,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:08:13,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:08:13,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 00:08:13,495 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_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65e8a0a9ca254c7952538dbe77a1c5314ecc616f0d4fbd62f6ebdc2d7f1ee180 [2022-11-22 00:08:13,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:08:13,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:08:13,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:08:13,924 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:08:13,924 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:08:13,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i [2022-11-22 00:08:17,102 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:08:17,562 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:08:17,563 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i [2022-11-22 00:08:17,583 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/data/84bcc1477/9d98104c095e48d480f54a30185d2086/FLAG60aca0d76 [2022-11-22 00:08:17,611 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d734c33-5824-475b-a703-ab1becc7dc24/bin/utaipan-g80aRyZoba/data/84bcc1477/9d98104c095e48d480f54a30185d2086 [2022-11-22 00:08:17,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:08:17,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:08:17,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:08:17,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:08:17,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:08:17,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:08:17" (1/1) ... [2022-11-22 00:08:17,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48921c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:17, skipping insertion in model container [2022-11-22 00:08:17,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:08:17" (1/1) ... [2022-11-22 00:08:17,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:08:17,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:08:18,117 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 00:08:18,525 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.addIntegerBoundsCheck(CExpressionTranslator.java:1060) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1126) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.TypeHandler.visit(TypeHandler.java:357) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-22 00:08:18,531 INFO L158 Benchmark]: Toolchain (without parser) took 907.54ms. Allocated memory is still 81.8MB. Free memory was 56.1MB in the beginning and 40.6MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 00:08:18,531 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 81.8MB. Free memory was 59.3MB in the beginning and 59.2MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:08:18,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 904.39ms. Allocated memory is still 81.8MB. Free memory was 55.8MB in the beginning and 40.6MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 00:08:18,534 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 81.8MB. Free memory was 59.3MB in the beginning and 59.2MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 904.39ms. Allocated memory is still 81.8MB. Free memory was 55.8MB in the beginning and 40.6MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.