./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_05_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_05_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW --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 1653f1bc214ce60a29f8abe981be92e23c0e6eeb960e39f4066bff28355ae087 --- 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-4e7fbc6 [2022-11-23 16:07:48,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 16:07:48,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 16:07:48,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 16:07:48,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 16:07:48,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 16:07:48,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 16:07:48,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 16:07:48,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 16:07:48,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 16:07:48,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 16:07:48,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 16:07:48,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 16:07:48,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 16:07:48,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 16:07:48,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 16:07:48,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 16:07:48,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 16:07:48,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 16:07:48,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 16:07:48,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 16:07:48,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 16:07:48,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 16:07:48,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 16:07:48,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 16:07:48,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 16:07:48,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 16:07:48,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 16:07:48,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 16:07:48,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 16:07:48,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 16:07:48,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 16:07:48,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 16:07:48,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 16:07:48,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 16:07:48,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 16:07:48,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 16:07:48,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 16:07:48,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 16:07:48,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 16:07:48,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 16:07:48,899 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 16:07:48,959 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 16:07:48,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 16:07:48,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 16:07:48,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 16:07:48,962 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 16:07:48,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 16:07:48,962 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 16:07:48,962 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 16:07:48,963 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 16:07:48,963 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 16:07:48,963 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 16:07:48,964 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 16:07:48,964 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 16:07:48,964 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 16:07:48,964 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 16:07:48,965 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 16:07:48,965 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 16:07:48,965 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 16:07:48,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 16:07:48,966 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 16:07:48,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 16:07:48,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 16:07:48,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 16:07:48,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 16:07:48,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 16:07:48,968 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 16:07:48,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 16:07:48,969 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 16:07:48,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 16:07:48,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 16:07:48,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 16:07:48,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:07:48,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 16:07:48,970 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 16:07:48,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 16:07:48,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 16:07:48,971 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 16:07:48,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 16:07:48,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 16:07:48,972 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 16:07:48,972 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_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1653f1bc214ce60a29f8abe981be92e23c0e6eeb960e39f4066bff28355ae087 [2022-11-23 16:07:49,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 16:07:49,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 16:07:49,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 16:07:49,277 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 16:07:49,278 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 16:07:49,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_05_bad.i [2022-11-23 16:07:52,668 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 16:07:53,056 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 16:07:53,059 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_05_bad.i [2022-11-23 16:07:53,083 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/data/821966782/88aa0bb727d24b308f381a735caf40bf/FLAGb86226a50 [2022-11-23 16:07:53,099 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/data/821966782/88aa0bb727d24b308f381a735caf40bf [2022-11-23 16:07:53,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 16:07:53,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 16:07:53,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 16:07:53,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 16:07:53,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 16:07:53,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:07:53" (1/1) ... [2022-11-23 16:07:53,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b6f92c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:07:53, skipping insertion in model container [2022-11-23 16:07:53,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:07:53" (1/1) ... [2022-11-23 16:07:53,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 16:07:53,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 16:07:53,624 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 16:07:54,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:07:54,157 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 16:07:54,194 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 16:07:54,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:07:54,455 INFO L208 MainTranslator]: Completed translation [2022-11-23 16:07:54,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:07:54 WrapperNode [2022-11-23 16:07:54,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 16:07:54,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 16:07:54,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 16:07:54,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 16:07:54,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:07:54" (1/1) ... [2022-11-23 16:07:54,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:07:54" (1/1) ... [2022-11-23 16:07:54,511 INFO L138 Inliner]: procedures = 499, calls = 61, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2022-11-23 16:07:54,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 16:07:54,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 16:07:54,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 16:07:54,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 16:07:54,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:07:54" (1/1) ... [2022-11-23 16:07:54,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:07:54" (1/1) ... [2022-11-23 16:07:54,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:07:54" (1/1) ... [2022-11-23 16:07:54,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:07:54" (1/1) ... [2022-11-23 16:07:54,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:07:54" (1/1) ... [2022-11-23 16:07:54,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:07:54" (1/1) ... [2022-11-23 16:07:54,537 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:07:54" (1/1) ... [2022-11-23 16:07:54,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:07:54" (1/1) ... [2022-11-23 16:07:54,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 16:07:54,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 16:07:54,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 16:07:54,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 16:07:54,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:07:54" (1/1) ... [2022-11-23 16:07:54,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:07:54,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:07:54,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 16:07:54,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 16:07:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 16:07:54,623 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 16:07:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 16:07:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 16:07:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 16:07:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 16:07:54,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 16:07:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 16:07:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 16:07:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 16:07:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 16:07:54,833 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 16:07:54,836 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 16:07:55,035 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 16:07:55,104 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 16:07:55,105 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 16:07:55,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:07:55 BoogieIcfgContainer [2022-11-23 16:07:55,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 16:07:55,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 16:07:55,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 16:07:55,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 16:07:55,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:07:53" (1/3) ... [2022-11-23 16:07:55,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1054d119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:07:55, skipping insertion in model container [2022-11-23 16:07:55,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:07:54" (2/3) ... [2022-11-23 16:07:55,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1054d119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:07:55, skipping insertion in model container [2022-11-23 16:07:55,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:07:55" (3/3) ... [2022-11-23 16:07:55,125 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_postdec_05_bad.i [2022-11-23 16:07:55,148 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 16:07:55,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 16:07:55,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 16:07:55,203 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;@7b8cd514, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 16:07:55,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 16:07:55,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 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) [2022-11-23 16:07:55,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 16:07:55,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:07:55,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:07:55,220 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 16:07:55,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:07:55,227 INFO L85 PathProgramCache]: Analyzing trace with hash -105241756, now seen corresponding path program 1 times [2022-11-23 16:07:55,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:07:55,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815093332] [2022-11-23 16:07:55,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:07:55,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:07:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 16:07:55,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 16:07:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 16:07:55,483 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 16:07:55,485 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 16:07:55,487 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 16:07:55,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 16:07:55,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 16:07:55,495 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 16:07:55,509 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 16:07:55,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:07:55 BoogieIcfgContainer [2022-11-23 16:07:55,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 16:07:55,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 16:07:55,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 16:07:55,546 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 16:07:55,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:07:55" (3/4) ... [2022-11-23 16:07:55,549 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 16:07:55,598 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 16:07:55,599 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 16:07:55,601 INFO L158 Benchmark]: Toolchain (without parser) took 2493.69ms. Allocated memory was 165.7MB in the beginning and 220.2MB in the end (delta: 54.5MB). Free memory was 116.3MB in the beginning and 160.4MB in the end (delta: -44.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 16:07:55,602 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 165.7MB. Free memory is still 132.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 16:07:55,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1345.18ms. Allocated memory is still 165.7MB. Free memory was 115.8MB in the beginning and 54.5MB in the end (delta: 61.3MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-23 16:07:55,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.51ms. Allocated memory is still 165.7MB. Free memory was 54.5MB in the beginning and 51.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 16:07:55,603 INFO L158 Benchmark]: Boogie Preprocessor took 29.39ms. Allocated memory is still 165.7MB. Free memory was 51.9MB in the beginning and 50.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 16:07:55,607 INFO L158 Benchmark]: RCFGBuilder took 565.51ms. Allocated memory was 165.7MB in the beginning and 220.2MB in the end (delta: 54.5MB). Free memory was 50.3MB in the beginning and 181.4MB in the end (delta: -131.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 16:07:55,608 INFO L158 Benchmark]: TraceAbstraction took 434.84ms. Allocated memory is still 220.2MB. Free memory was 180.3MB in the beginning and 162.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 16:07:55,608 INFO L158 Benchmark]: Witness Printer took 52.75ms. Allocated memory is still 220.2MB. Free memory was 162.5MB in the beginning and 160.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 16:07:55,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 165.7MB. Free memory is still 132.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1345.18ms. Allocated memory is still 165.7MB. Free memory was 115.8MB in the beginning and 54.5MB in the end (delta: 61.3MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.51ms. Allocated memory is still 165.7MB. Free memory was 54.5MB in the beginning and 51.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.39ms. Allocated memory is still 165.7MB. Free memory was 51.9MB in the beginning and 50.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 565.51ms. Allocated memory was 165.7MB in the beginning and 220.2MB in the end (delta: 54.5MB). Free memory was 50.3MB in the beginning and 181.4MB in the end (delta: -131.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 434.84ms. Allocated memory is still 220.2MB. Free memory was 180.3MB in the beginning and 162.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 52.75ms. Allocated memory is still 220.2MB. Free memory was 162.5MB in the beginning and 160.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1561]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int staticTrue = 1; [L1549] static int staticFalse = 0; [L1570] CALL printLine("Calling bad()...") VAL [#in~line={2:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [#in~argv={1073741829:1073741828}, argc=1073741827, 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, staticFalse=0, staticTrue=1, unknown-#in~argc-unknown=1073741827] [L1571] CALL CWE191_Integer_Underflow__int_fscanf_postdec_05_bad() [L1552] int data; [L1553] data = 0 [L1554] COND TRUE \read(staticTrue) [L1558] COND TRUE \read(staticTrue) [L1561] EXPR \read(data) [L1561] data-- VAL [\read(data)=-2147483648, data={5:0}, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] - UnprovableResult [Line: 1561]: 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 proved your program to be incorrect! [2022-11-23 16:07:55,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27beed83-07e4-4350-a422-e69479ff4364/bin/utaipan-Q6hlc19bkW/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)