./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_12_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_12_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0 --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 c0a0030ffa27dca5bb14131b70d3aa8b11940565f5178ee0497f1eeb9a0fdf14 --- 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-e04fb08 [2022-11-16 16:05:51,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:05:51,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:05:51,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:05:51,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:05:51,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:05:51,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:05:51,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:05:51,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:05:51,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:05:51,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:05:51,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:05:51,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:05:51,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:05:51,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:05:51,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:05:51,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:05:51,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:05:51,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:05:51,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:05:51,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:05:51,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:05:51,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:05:51,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:05:51,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:05:51,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:05:51,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:05:51,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:05:51,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:05:51,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:05:51,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:05:51,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:05:51,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:05:51,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:05:51,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:05:51,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:05:51,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:05:51,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:05:51,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:05:51,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:05:51,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:05:51,713 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-16 16:05:51,755 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:05:51,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:05:51,756 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:05:51,756 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:05:51,757 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:05:51,757 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:05:51,758 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:05:51,758 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:05:51,758 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:05:51,758 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:05:51,759 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:05:51,759 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:05:51,759 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:05:51,759 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:05:51,759 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:05:51,760 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:05:51,760 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:05:51,760 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:05:51,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:05:51,761 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 16:05:51,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:05:51,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:05:51,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:05:51,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:05:51,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:05:51,763 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 16:05:51,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:05:51,763 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:05:51,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:05:51,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:05:51,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:05:51,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:05:51,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:05:51,780 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:05:51,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:05:51,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:05:51,782 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:05:51,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:05:51,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:05:51,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:05:51,783 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_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0a0030ffa27dca5bb14131b70d3aa8b11940565f5178ee0497f1eeb9a0fdf14 [2022-11-16 16:05:52,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:05:52,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:05:52,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:05:52,092 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:05:52,093 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:05:52,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_12_good.i [2022-11-16 16:05:52,184 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/data/ed7daef9b/5c787050b5064647804d5480023e2856/FLAGea276ac37 [2022-11-16 16:05:52,921 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:05:52,922 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_12_good.i [2022-11-16 16:05:52,947 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/data/ed7daef9b/5c787050b5064647804d5480023e2856/FLAGea276ac37 [2022-11-16 16:05:53,072 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/data/ed7daef9b/5c787050b5064647804d5480023e2856 [2022-11-16 16:05:53,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:05:53,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:05:53,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:05:53,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:05:53,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:05:53,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:05:53" (1/1) ... [2022-11-16 16:05:53,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ba8fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:53, skipping insertion in model container [2022-11-16 16:05:53,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:05:53" (1/1) ... [2022-11-16 16:05:53,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:05:53,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:05:53,645 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 16:05:54,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:05:54,410 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:05:54,430 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 16:05:54,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:05:54,693 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:05:54,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:54 WrapperNode [2022-11-16 16:05:54,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:05:54,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:05:54,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:05:54,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:05:54,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:54" (1/1) ... [2022-11-16 16:05:54,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:54" (1/1) ... [2022-11-16 16:05:54,772 INFO L138 Inliner]: procedures = 502, calls = 165, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 201 [2022-11-16 16:05:54,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:05:54,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:05:54,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:05:54,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:05:54,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:54" (1/1) ... [2022-11-16 16:05:54,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:54" (1/1) ... [2022-11-16 16:05:54,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:54" (1/1) ... [2022-11-16 16:05:54,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:54" (1/1) ... [2022-11-16 16:05:54,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:54" (1/1) ... [2022-11-16 16:05:54,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:54" (1/1) ... [2022-11-16 16:05:54,809 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:54" (1/1) ... [2022-11-16 16:05:54,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:54" (1/1) ... [2022-11-16 16:05:54,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:05:54,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:05:54,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:05:54,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:05:54,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:54" (1/1) ... [2022-11-16 16:05:54,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:05:54,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:05:54,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:05:54,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:05:54,913 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-16 16:05:54,913 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-16 16:05:54,913 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-16 16:05:54,914 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2022-11-16 16:05:54,914 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2022-11-16 16:05:54,914 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-16 16:05:54,914 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-16 16:05:54,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:05:54,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 16:05:54,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:05:54,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:05:54,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:05:54,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:05:54,915 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-16 16:05:54,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:05:55,068 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:05:55,070 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:05:55,489 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:05:55,577 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:05:55,579 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 16:05:55,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:05:55 BoogieIcfgContainer [2022-11-16 16:05:55,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:05:55,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:05:55,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:05:55,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:05:55,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:05:53" (1/3) ... [2022-11-16 16:05:55,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4fbbe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:05:55, skipping insertion in model container [2022-11-16 16:05:55,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:54" (2/3) ... [2022-11-16 16:05:55,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4fbbe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:05:55, skipping insertion in model container [2022-11-16 16:05:55,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:05:55" (3/3) ... [2022-11-16 16:05:55,593 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_12_good.i [2022-11-16 16:05:55,612 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:05:55,612 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-16 16:05:55,669 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:05:55,676 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;@71569e5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:05:55,676 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 16:05:55,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 43 states have internal predecessors, (44), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-16 16:05:55,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 16:05:55,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:05:55,687 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:05:55,688 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 16:05:55,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:05:55,692 INFO L85 PathProgramCache]: Analyzing trace with hash -490965657, now seen corresponding path program 1 times [2022-11-16 16:05:55,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:05:55,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445002865] [2022-11-16 16:05:55,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:05:55,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:05:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 16:05:55,995 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 16:05:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 16:05:56,146 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 16:05:56,153 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 16:05:56,154 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-16 16:05:56,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-16 16:05:56,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-16 16:05:56,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-16 16:05:56,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-16 16:05:56,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-16 16:05:56,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-16 16:05:56,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-16 16:05:56,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:05:56,167 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-16 16:05:56,172 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 16:05:56,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:05:56 BoogieIcfgContainer [2022-11-16 16:05:56,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 16:05:56,243 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 16:05:56,244 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 16:05:56,244 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 16:05:56,244 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:05:55" (3/4) ... [2022-11-16 16:05:56,248 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 16:05:56,248 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 16:05:56,251 INFO L158 Benchmark]: Toolchain (without parser) took 3173.47ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 76.9MB in the beginning and 118.1MB in the end (delta: -41.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:05:56,252 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:05:56,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1615.46ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 76.7MB in the beginning and 123.8MB in the end (delta: -47.1MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-11-16 16:05:56,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.18ms. Allocated memory is still 165.7MB. Free memory was 123.8MB in the beginning and 120.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:05:56,261 INFO L158 Benchmark]: Boogie Preprocessor took 46.60ms. Allocated memory is still 165.7MB. Free memory was 120.3MB in the beginning and 118.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:05:56,263 INFO L158 Benchmark]: RCFGBuilder took 756.91ms. Allocated memory is still 165.7MB. Free memory was 118.2MB in the beginning and 94.4MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-16 16:05:56,263 INFO L158 Benchmark]: TraceAbstraction took 654.41ms. Allocated memory is still 165.7MB. Free memory was 93.6MB in the beginning and 118.1MB in the end (delta: -24.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:05:56,265 INFO L158 Benchmark]: Witness Printer took 5.60ms. Allocated memory is still 165.7MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:05:56,272 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1615.46ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 76.7MB in the beginning and 123.8MB in the end (delta: -47.1MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.18ms. Allocated memory is still 165.7MB. Free memory was 123.8MB in the beginning and 120.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.60ms. Allocated memory is still 165.7MB. Free memory was 120.3MB in the beginning and 118.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 756.91ms. Allocated memory is still 165.7MB. Free memory was 118.2MB in the beginning and 94.4MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 654.41ms. Allocated memory is still 165.7MB. Free memory was 93.6MB in the beginning and 118.1MB in the end (delta: -24.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.60ms. Allocated memory is still 165.7MB. Free memory is still 118.1MB. 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: 1597]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1525] int globalTrue = 1; [L1547] char** globalArgv = ((void *)0); [L1526] int globalFalse = 0; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1546] int globalArgc = 0; [L1522] const int GLOBAL_CONST_TRUE = 1; [L1527] int globalFive = 5; [L1644] CALL printLine("Calling good()...") 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={23:0}] [L1414] COND TRUE line != ((void *)0) [L1644] RET printLine("Calling good()...") VAL [\old(argc)=2147483651, argc=2147483651, argv={2147483654:2147483652}, argv={2147483654:2147483652}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1645] CALL CWE191_Integer_Underflow__int_fgets_postdec_12_good() [L1638] CALL goodB2G() [L1550] int data; [L1551] 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] [L1552] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrueOrFalse() [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=2147483649, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1580] RET globalReturnsTrueOrFalse() VAL [data=2147483649, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=0, globalTrue=1] [L1580] COND FALSE !(globalReturnsTrueOrFalse()) [L1595] COND TRUE data > (-0x7fffffff - 1) [L1597] data-- VAL [data=2147483649, data--=2147483649, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1584]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1584]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1597]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1622]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1622]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1630]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1630]: 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 4 procedures, 55 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 2, 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=55occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 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 could not prove your program: unable to determine feasibility of some traces [2022-11-16 16:05:56,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/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 No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a5e33c-a548-44bc-822f-4035bf132e7b/bin/utaipan-Xvt2sAort0/config using search string *Overflow*64bit*_Bitvector*.epf No suitable settings file found using Overflow*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample