./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_51_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_51_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 257dc5ce1d45fdd537d5d2ece8eb4bf6cf534048465bb0071983a69155154f69 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:56:41,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:56:41,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:56:41,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:56:41,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:56:41,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:56:41,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:56:41,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:56:41,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:56:41,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:56:41,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:56:41,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:56:41,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:56:41,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:56:41,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:56:41,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:56:41,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:56:41,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:56:41,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:56:41,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:56:41,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:56:41,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:56:41,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:56:41,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:56:41,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:56:41,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:56:41,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:56:41,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:56:41,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:56:41,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:56:41,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:56:41,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:56:41,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:56:41,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:56:41,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:56:41,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:56:41,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:56:41,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:56:41,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:56:41,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:56:41,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:56:41,983 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:56:42,023 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:56:42,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:56:42,023 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:56:42,024 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:56:42,025 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:56:42,025 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:56:42,025 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:56:42,025 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:56:42,026 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:56:42,026 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:56:42,026 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:56:42,026 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:56:42,027 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:56:42,027 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:56:42,027 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:56:42,028 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:56:42,028 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:56:42,028 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:56:42,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:56:42,029 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:56:42,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:56:42,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:56:42,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:56:42,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:56:42,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:56:42,031 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:56:42,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:56:42,031 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:56:42,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:56:42,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:56:42,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:56:42,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:56:42,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:56:42,033 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:56:42,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:56:42,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:56:42,034 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:56:42,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:56:42,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:56:42,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:56:42,035 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_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 257dc5ce1d45fdd537d5d2ece8eb4bf6cf534048465bb0071983a69155154f69 [2022-11-26 00:56:42,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:56:42,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:56:42,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:56:42,328 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:56:42,329 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:56:42,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_51_good.i [2022-11-26 00:56:45,434 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:56:45,832 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:56:45,833 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_51_good.i [2022-11-26 00:56:45,862 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/data/8a394b74d/1f321b51073c421d994f0cc8f04ce54a/FLAG77cc77298 [2022-11-26 00:56:45,884 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/data/8a394b74d/1f321b51073c421d994f0cc8f04ce54a [2022-11-26 00:56:45,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:56:45,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:56:45,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:56:45,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:56:45,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:56:45,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:56:45" (1/1) ... [2022-11-26 00:56:45,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c73cdcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:45, skipping insertion in model container [2022-11-26 00:56:45,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:56:45" (1/1) ... [2022-11-26 00:56:45,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:56:45,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:56:46,416 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:56:46,874 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:56:46,879 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:56:46,882 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:56:46,884 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:56:46,885 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:56:46,911 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:56:46,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:56:46,934 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:56:46,970 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:56:47,042 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:56:47,047 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:56:47,049 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:56:47,054 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:56:47,055 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:56:47,068 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:56:47,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:56:47,222 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:56:47,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:47 WrapperNode [2022-11-26 00:56:47,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:56:47,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:56:47,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:56:47,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:56:47,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:47" (1/1) ... [2022-11-26 00:56:47,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:47" (1/1) ... [2022-11-26 00:56:47,301 INFO L138 Inliner]: procedures = 503, calls = 66, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 62 [2022-11-26 00:56:47,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:56:47,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:56:47,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:56:47,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:56:47,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:47" (1/1) ... [2022-11-26 00:56:47,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:47" (1/1) ... [2022-11-26 00:56:47,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:47" (1/1) ... [2022-11-26 00:56:47,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:47" (1/1) ... [2022-11-26 00:56:47,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:47" (1/1) ... [2022-11-26 00:56:47,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:47" (1/1) ... [2022-11-26 00:56:47,329 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:47" (1/1) ... [2022-11-26 00:56:47,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:47" (1/1) ... [2022-11-26 00:56:47,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:56:47,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:56:47,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:56:47,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:56:47,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:47" (1/1) ... [2022-11-26 00:56:47,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:56:47,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:56:47,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:56:47,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:56:47,437 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-26 00:56:47,437 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-26 00:56:47,437 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:56:47,437 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:56:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:56:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:56:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:56:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:56:47,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:56:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:56:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:56:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:56:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:56:47,659 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:56:47,662 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:56:47,958 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:56:47,996 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:56:47,996 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:56:47,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:56:47 BoogieIcfgContainer [2022-11-26 00:56:47,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:56:48,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:56:48,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:56:48,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:56:48,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:56:45" (1/3) ... [2022-11-26 00:56:48,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a092b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:56:48, skipping insertion in model container [2022-11-26 00:56:48,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:47" (2/3) ... [2022-11-26 00:56:48,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a092b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:56:48, skipping insertion in model container [2022-11-26 00:56:48,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:56:47" (3/3) ... [2022-11-26 00:56:48,010 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_predec_51_good.i [2022-11-26 00:56:48,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:56:48,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-26 00:56:48,088 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:56:48,096 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;@3100d466, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:56:48,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-26 00:56:48,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 17 states have internal predecessors, (17), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-26 00:56:48,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:56:48,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:48,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:56:48,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:56:48,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:48,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1645250558, now seen corresponding path program 1 times [2022-11-26 00:56:48,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:48,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676903306] [2022-11-26 00:56:48,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:48,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:48,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:48,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:48,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676903306] [2022-11-26 00:56:48,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676903306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:48,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:48,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:56:48,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962063603] [2022-11-26 00:56:48,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:48,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:56:48,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:48,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:56:48,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:56:48,501 INFO L87 Difference]: Start difference. First operand has 24 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 17 states have internal predecessors, (17), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:56:48,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:48,590 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-11-26 00:56:48,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:56:48,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 6 [2022-11-26 00:56:48,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:48,602 INFO L225 Difference]: With dead ends: 24 [2022-11-26 00:56:48,602 INFO L226 Difference]: Without dead ends: 17 [2022-11-26 00:56:48,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:56:48,608 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:48,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 33 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:56:48,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-26 00:56:48,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-26 00:56:48,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:56:48,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2022-11-26 00:56:48,650 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 6 [2022-11-26 00:56:48,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:48,650 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2022-11-26 00:56:48,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:56:48,651 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2022-11-26 00:56:48,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:56:48,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:48,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:48,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:56:48,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:56:48,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:48,653 INFO L85 PathProgramCache]: Analyzing trace with hash 536840302, now seen corresponding path program 1 times [2022-11-26 00:56:48,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:48,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818092463] [2022-11-26 00:56:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:48,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:48,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:48,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:48,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818092463] [2022-11-26 00:56:48,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818092463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:48,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:48,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:56:48,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628768018] [2022-11-26 00:56:48,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:48,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:56:48,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:48,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:56:48,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:56:48,763 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:56:48,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:48,781 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2022-11-26 00:56:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:56:48,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 7 [2022-11-26 00:56:48,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:48,783 INFO L225 Difference]: With dead ends: 17 [2022-11-26 00:56:48,783 INFO L226 Difference]: Without dead ends: 16 [2022-11-26 00:56:48,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:56:48,785 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:48,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 12 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:56:48,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-26 00:56:48,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-26 00:56:48,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:56:48,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2022-11-26 00:56:48,790 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2022-11-26 00:56:48,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:48,790 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2022-11-26 00:56:48,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:56:48,791 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2022-11-26 00:56:48,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:56:48,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:48,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:48,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:56:48,792 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:56:48,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:48,793 INFO L85 PathProgramCache]: Analyzing trace with hash 2032282020, now seen corresponding path program 1 times [2022-11-26 00:56:48,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:48,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453109767] [2022-11-26 00:56:48,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:48,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:48,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:48,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:48,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453109767] [2022-11-26 00:56:48,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453109767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:48,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:48,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:56:48,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683909193] [2022-11-26 00:56:48,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:48,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:56:48,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:48,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:56:48,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:56:48,872 INFO L87 Difference]: Start difference. First operand 16 states and 15 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:56:48,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:48,890 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2022-11-26 00:56:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:56:48,892 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2022-11-26 00:56:48,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:48,893 INFO L225 Difference]: With dead ends: 16 [2022-11-26 00:56:48,894 INFO L226 Difference]: Without dead ends: 15 [2022-11-26 00:56:48,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:56:48,896 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:48,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 15 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:56:48,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-26 00:56:48,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-26 00:56:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:56:48,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2022-11-26 00:56:48,907 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 13 [2022-11-26 00:56:48,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:48,908 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2022-11-26 00:56:48,908 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:56:48,909 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2022-11-26 00:56:48,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:56:48,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:48,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:48,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:56:48,913 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:56:48,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:48,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1423766760, now seen corresponding path program 1 times [2022-11-26 00:56:48,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:48,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110704535] [2022-11-26 00:56:48,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:48,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:49,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:49,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:49,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110704535] [2022-11-26 00:56:49,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110704535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:49,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:49,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:56:49,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649323999] [2022-11-26 00:56:49,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:49,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:56:49,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:49,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:56:49,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:56:49,163 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:56:49,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:49,182 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2022-11-26 00:56:49,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:56:49,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2022-11-26 00:56:49,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:49,183 INFO L225 Difference]: With dead ends: 15 [2022-11-26 00:56:49,183 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:56:49,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:56:49,185 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:49,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:56:49,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:56:49,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:56:49,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:49,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:56:49,187 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-26 00:56:49,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:49,187 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:56:49,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:56:49,188 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:56:49,188 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:56:49,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-26 00:56:49,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-26 00:56:49,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-26 00:56:49,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-26 00:56:49,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:56:49,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-26 00:56:49,217 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-26 00:56:49,217 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-26 00:56:49,218 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-26 00:56:49,218 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-26 00:56:49,218 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1580) no Hoare annotation was computed. [2022-11-26 00:56:49,218 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-26 00:56:49,219 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1589) no Hoare annotation was computed. [2022-11-26 00:56:49,219 INFO L895 garLoopResultBuilder]: At program point L1582(line 1582) the Hoare annotation is: (<= (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fscanf_predec_51b_goodG2BSink_~data#1|) 0) [2022-11-26 00:56:49,219 INFO L899 garLoopResultBuilder]: For program point L1582-1(lines 1577 1584) no Hoare annotation was computed. [2022-11-26 00:56:49,219 INFO L899 garLoopResultBuilder]: For program point L1580(line 1580) no Hoare annotation was computed. [2022-11-26 00:56:49,219 INFO L899 garLoopResultBuilder]: For program point L1580-1(line 1580) no Hoare annotation was computed. [2022-11-26 00:56:49,220 INFO L902 garLoopResultBuilder]: At program point L1574(line 1574) the Hoare annotation is: true [2022-11-26 00:56:49,220 INFO L902 garLoopResultBuilder]: At program point L1574-1(line 1574) the Hoare annotation is: true [2022-11-26 00:56:49,220 INFO L902 garLoopResultBuilder]: At program point L1572(line 1572) the Hoare annotation is: true [2022-11-26 00:56:49,220 INFO L899 garLoopResultBuilder]: For program point L1572-1(line 1572) no Hoare annotation was computed. [2022-11-26 00:56:49,221 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1580) no Hoare annotation was computed. [2022-11-26 00:56:49,221 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1589) no Hoare annotation was computed. [2022-11-26 00:56:49,221 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-26 00:56:49,221 INFO L902 garLoopResultBuilder]: At program point L1595(line 1595) the Hoare annotation is: true [2022-11-26 00:56:49,222 INFO L899 garLoopResultBuilder]: For program point L1595-1(lines 1585 1597) no Hoare annotation was computed. [2022-11-26 00:56:49,222 INFO L902 garLoopResultBuilder]: At program point L1591(line 1591) the Hoare annotation is: true [2022-11-26 00:56:49,222 INFO L899 garLoopResultBuilder]: For program point L1589(line 1589) no Hoare annotation was computed. [2022-11-26 00:56:49,222 INFO L899 garLoopResultBuilder]: For program point L1589-1(line 1589) no Hoare annotation was computed. [2022-11-26 00:56:49,222 INFO L899 garLoopResultBuilder]: For program point L1587(lines 1587 1596) no Hoare annotation was computed. [2022-11-26 00:56:49,226 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-26 00:56:49,228 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:56:49,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:56:49 BoogieIcfgContainer [2022-11-26 00:56:49,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:56:49,238 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:56:49,238 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:56:49,238 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:56:49,239 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:56:47" (3/4) ... [2022-11-26 00:56:49,242 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:56:49,247 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-26 00:56:49,247 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-26 00:56:49,251 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-26 00:56:49,252 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-26 00:56:49,252 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-26 00:56:49,252 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:56:49,287 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:56:49,288 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:56:49,288 INFO L158 Benchmark]: Toolchain (without parser) took 3397.93ms. Allocated memory was 163.6MB in the beginning and 216.0MB in the end (delta: 52.4MB). Free memory was 122.9MB in the beginning and 107.8MB in the end (delta: 15.2MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2022-11-26 00:56:49,289 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 163.6MB. Free memory was 127.9MB in the beginning and 127.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:56:49,289 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1327.70ms. Allocated memory is still 163.6MB. Free memory was 122.9MB in the beginning and 60.9MB in the end (delta: 62.0MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-26 00:56:49,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.87ms. Allocated memory is still 163.6MB. Free memory was 60.9MB in the beginning and 57.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:56:49,290 INFO L158 Benchmark]: Boogie Preprocessor took 36.82ms. Allocated memory is still 163.6MB. Free memory was 57.9MB in the beginning and 56.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:56:49,290 INFO L158 Benchmark]: RCFGBuilder took 659.38ms. Allocated memory was 163.6MB in the beginning and 216.0MB in the end (delta: 52.4MB). Free memory was 56.4MB in the beginning and 180.1MB in the end (delta: -123.7MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2022-11-26 00:56:49,290 INFO L158 Benchmark]: TraceAbstraction took 1234.82ms. Allocated memory is still 216.0MB. Free memory was 179.1MB in the beginning and 110.9MB in the end (delta: 68.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2022-11-26 00:56:49,291 INFO L158 Benchmark]: Witness Printer took 50.05ms. Allocated memory is still 216.0MB. Free memory was 110.9MB in the beginning and 107.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:56:49,293 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 163.6MB. Free memory was 127.9MB in the beginning and 127.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1327.70ms. Allocated memory is still 163.6MB. Free memory was 122.9MB in the beginning and 60.9MB in the end (delta: 62.0MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.87ms. Allocated memory is still 163.6MB. Free memory was 60.9MB in the beginning and 57.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.82ms. Allocated memory is still 163.6MB. Free memory was 57.9MB in the beginning and 56.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 659.38ms. Allocated memory was 163.6MB in the beginning and 216.0MB in the end (delta: 52.4MB). Free memory was 56.4MB in the beginning and 180.1MB in the end (delta: -123.7MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1234.82ms. Allocated memory is still 216.0MB. Free memory was 179.1MB in the beginning and 110.9MB in the end (delta: 68.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Witness Printer took 50.05ms. Allocated memory is still 216.0MB. Free memory was 110.9MB in the beginning and 107.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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 - PositiveResult [Line: 1580]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1580]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1589]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1589]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 41 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 11 PreInvPairs, 11 NumberOfFragments, 12 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1574]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-26 00:56:49,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4416e8eb-a226-44b9-96ff-4176c7e2bf63/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE