./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS --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 32bit --witnessprinter.graph.data.programhash 10f5db0b7f76a0d4c4c35217e21dd4a594e7457adb3230ac21a302fd5d7ee15c --- 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-8393723 [2022-11-19 07:40:59,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:40:59,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:40:59,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:40:59,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:40:59,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:40:59,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:40:59,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:40:59,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:40:59,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:40:59,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:40:59,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:40:59,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:40:59,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:40:59,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:40:59,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:40:59,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:40:59,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:40:59,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:40:59,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:40:59,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:40:59,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:40:59,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:40:59,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:40:59,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:40:59,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:40:59,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:40:59,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:40:59,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:40:59,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:40:59,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:40:59,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:40:59,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:40:59,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:40:59,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:40:59,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:40:59,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:40:59,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:40:59,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:40:59,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:40:59,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:40:59,965 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 07:41:00,009 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:41:00,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:41:00,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:41:00,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:41:00,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:41:00,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:41:00,012 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:41:00,012 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:41:00,012 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:41:00,012 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:41:00,013 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:41:00,014 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:41:00,014 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:41:00,014 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:41:00,014 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:41:00,015 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:41:00,015 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:41:00,015 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:41:00,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:41:00,016 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:41:00,016 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:41:00,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:41:00,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:41:00,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:41:00,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:41:00,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:41:00,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:41:00,019 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:41:00,020 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:41:00,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:41:00,020 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:41:00,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:41:00,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:41:00,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:41:00,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:41:00,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:41:00,022 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:41:00,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:41:00,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:41:00,022 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:41:00,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:41:00,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:41:00,023 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:41:00,023 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_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f5db0b7f76a0d4c4c35217e21dd4a594e7457adb3230ac21a302fd5d7ee15c [2022-11-19 07:41:00,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:41:00,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:41:00,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:41:00,390 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:41:00,391 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:41:00,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i [2022-11-19 07:41:00,465 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/data/75de1d35e/1b2f91c77dba424faae5fd3d46c21fba/FLAG19dc7fad7 [2022-11-19 07:41:01,097 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:41:01,104 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/sv-benchmarks/c/memsafety-bftpd/bftpd_1.i [2022-11-19 07:41:01,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/data/75de1d35e/1b2f91c77dba424faae5fd3d46c21fba/FLAG19dc7fad7 [2022-11-19 07:41:01,342 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/data/75de1d35e/1b2f91c77dba424faae5fd3d46c21fba [2022-11-19 07:41:01,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:41:01,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:41:01,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:41:01,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:41:01,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:41:01,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:01" (1/1) ... [2022-11-19 07:41:01,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@802c0cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:01, skipping insertion in model container [2022-11-19 07:41:01,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:01" (1/1) ... [2022-11-19 07:41:01,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:41:01,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:41:01,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:41:01,777 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:41:01,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:41:01,870 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:41:01,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:01 WrapperNode [2022-11-19 07:41:01,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:41:01,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:41:01,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:41:01,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:41:01,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:01" (1/1) ... [2022-11-19 07:41:01,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:01" (1/1) ... [2022-11-19 07:41:01,948 INFO L138 Inliner]: procedures = 168, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 85 [2022-11-19 07:41:01,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:41:01,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:41:01,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:41:01,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:41:01,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:01" (1/1) ... [2022-11-19 07:41:01,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:01" (1/1) ... [2022-11-19 07:41:01,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:01" (1/1) ... [2022-11-19 07:41:01,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:01" (1/1) ... [2022-11-19 07:41:01,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:01" (1/1) ... [2022-11-19 07:41:01,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:01" (1/1) ... [2022-11-19 07:41:01,989 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:01" (1/1) ... [2022-11-19 07:41:01,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:01" (1/1) ... [2022-11-19 07:41:02,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:41:02,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:41:02,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:41:02,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:41:02,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:01" (1/1) ... [2022-11-19 07:41:02,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:41:02,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:41:02,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:41:02,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:41:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:41:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure parse_input [2022-11-19 07:41:02,110 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_input [2022-11-19 07:41:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:41:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:41:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:41:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:41:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:41:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:41:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:41:02,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:41:02,256 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:41:02,258 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:41:02,441 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:41:02,623 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:41:02,623 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:41:02,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:02 BoogieIcfgContainer [2022-11-19 07:41:02,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:41:02,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:41:02,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:41:02,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:41:02,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:41:01" (1/3) ... [2022-11-19 07:41:02,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4efa2c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:02, skipping insertion in model container [2022-11-19 07:41:02,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:01" (2/3) ... [2022-11-19 07:41:02,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4efa2c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:02, skipping insertion in model container [2022-11-19 07:41:02,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:02" (3/3) ... [2022-11-19 07:41:02,637 INFO L112 eAbstractionObserver]: Analyzing ICFG bftpd_1.i [2022-11-19 07:41:02,658 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:41:02,659 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 07:41:02,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:41:02,757 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;@3ec1673e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:41:02,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 07:41:02,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.5) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 07:41:02,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:41:02,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:41:02,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:41:02,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-19 07:41:02,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:41:02,784 INFO L85 PathProgramCache]: Analyzing trace with hash 617043181, now seen corresponding path program 1 times [2022-11-19 07:41:02,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:41:02,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570249534] [2022-11-19 07:41:02,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:41:02,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:41:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:41:03,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:41:03,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:41:03,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570249534] [2022-11-19 07:41:03,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570249534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:41:03,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:41:03,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:41:03,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138165252] [2022-11-19 07:41:03,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:41:03,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:41:03,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:41:03,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:41:03,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:41:03,213 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.5) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:41:03,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:41:03,337 INFO L93 Difference]: Finished difference Result 40 states and 57 transitions. [2022-11-19 07:41:03,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:41:03,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-19 07:41:03,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:41:03,351 INFO L225 Difference]: With dead ends: 40 [2022-11-19 07:41:03,351 INFO L226 Difference]: Without dead ends: 23 [2022-11-19 07:41:03,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:41:03,362 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:41:03,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 34 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:41:03,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-19 07:41:03,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2022-11-19 07:41:03,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:41:03,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2022-11-19 07:41:03,412 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 7 [2022-11-19 07:41:03,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:41:03,413 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2022-11-19 07:41:03,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:41:03,414 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-11-19 07:41:03,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:41:03,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:41:03,415 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-19 07:41:03,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:41:03,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-19 07:41:03,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:41:03,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1347441747, now seen corresponding path program 1 times [2022-11-19 07:41:03,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:41:03,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965172211] [2022-11-19 07:41:03,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:41:03,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:41:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:41:03,637 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:41:03,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:41:03,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965172211] [2022-11-19 07:41:03,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965172211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:41:03,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:41:03,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:41:03,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903040041] [2022-11-19 07:41:03,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:41:03,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:41:03,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:41:03,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:41:03,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:41:03,644 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:41:03,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:41:03,719 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2022-11-19 07:41:03,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:41:03,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 07:41:03,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:41:03,721 INFO L225 Difference]: With dead ends: 23 [2022-11-19 07:41:03,721 INFO L226 Difference]: Without dead ends: 22 [2022-11-19 07:41:03,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:41:03,726 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:41:03,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 24 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:41:03,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-19 07:41:03,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2022-11-19 07:41:03,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:41:03,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-11-19 07:41:03,743 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 12 [2022-11-19 07:41:03,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:41:03,745 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-11-19 07:41:03,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:41:03,747 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-11-19 07:41:03,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 07:41:03,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:41:03,749 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-19 07:41:03,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:41:03,750 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-19 07:41:03,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:41:03,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1178978885, now seen corresponding path program 1 times [2022-11-19 07:41:03,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:41:03,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251419693] [2022-11-19 07:41:03,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:41:03,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:41:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:41:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:41:03,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:41:03,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251419693] [2022-11-19 07:41:03,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251419693] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:41:03,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672035672] [2022-11-19 07:41:03,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:41:03,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:41:03,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:41:03,941 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:41:03,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:41:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:41:04,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:41:04,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:41:04,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:41:04,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:41:04,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672035672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:41:04,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:41:04,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-19 07:41:04,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917695479] [2022-11-19 07:41:04,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:41:04,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:41:04,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:41:04,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:41:04,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:41:04,161 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:41:04,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:41:04,228 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2022-11-19 07:41:04,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:41:04,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-19 07:41:04,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:41:04,230 INFO L225 Difference]: With dead ends: 20 [2022-11-19 07:41:04,230 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:41:04,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:41:04,237 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:41:04,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 23 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:41:04,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:41:04,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:41:04,241 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) [2022-11-19 07:41:04,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:41:04,242 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-11-19 07:41:04,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:41:04,242 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:41:04,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:41:04,243 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:41:04,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:41:04,246 INFO L805 garLoopResultBuilder]: Registering result SAFE for location parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-19 07:41:04,247 INFO L805 garLoopResultBuilder]: Registering result SAFE for location parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-19 07:41:04,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:41:04,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:41:04,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:41:04,522 INFO L899 garLoopResultBuilder]: For program point L692-2(lines 692 699) no Hoare annotation was computed. [2022-11-19 07:41:04,522 INFO L899 garLoopResultBuilder]: For program point L692-3(line 692) no Hoare annotation was computed. [2022-11-19 07:41:04,523 INFO L899 garLoopResultBuilder]: For program point L692-4(line 692) no Hoare annotation was computed. [2022-11-19 07:41:04,524 INFO L895 garLoopResultBuilder]: At program point L692-5(lines 692 699) the Hoare annotation is: (<= 0 (+ |parse_input_~i~0#1| 2147483648)) [2022-11-19 07:41:04,524 INFO L899 garLoopResultBuilder]: For program point L692-6(lines 691 700) no Hoare annotation was computed. [2022-11-19 07:41:04,524 INFO L899 garLoopResultBuilder]: For program point parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 692) no Hoare annotation was computed. [2022-11-19 07:41:04,525 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 698) no Hoare annotation was computed. [2022-11-19 07:41:04,525 INFO L899 garLoopResultBuilder]: For program point parse_inputEXIT(lines 691 700) no Hoare annotation was computed. [2022-11-19 07:41:04,525 INFO L899 garLoopResultBuilder]: For program point parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 692) no Hoare annotation was computed. [2022-11-19 07:41:04,525 INFO L895 garLoopResultBuilder]: At program point L694(lines 694 697) the Hoare annotation is: (and (<= 0 (+ |parse_input_~i~0#1| 2147483648)) (<= |parse_input_~i~0#1| 1)) [2022-11-19 07:41:04,526 INFO L902 garLoopResultBuilder]: At program point parse_inputENTRY(lines 691 700) the Hoare annotation is: true [2022-11-19 07:41:04,526 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:41:04,526 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 07:41:04,526 INFO L902 garLoopResultBuilder]: At program point L725(line 725) the Hoare annotation is: true [2022-11-19 07:41:04,553 INFO L902 garLoopResultBuilder]: At program point L724(line 724) the Hoare annotation is: true [2022-11-19 07:41:04,554 INFO L902 garLoopResultBuilder]: At program point L723(line 723) the Hoare annotation is: true [2022-11-19 07:41:04,554 INFO L902 garLoopResultBuilder]: At program point L723-1(line 723) the Hoare annotation is: true [2022-11-19 07:41:04,559 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-19 07:41:04,562 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:41:04,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:41:04 BoogieIcfgContainer [2022-11-19 07:41:04,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:41:04,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:41:04,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:41:04,589 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:41:04,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:02" (3/4) ... [2022-11-19 07:41:04,593 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:41:04,600 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parse_input [2022-11-19 07:41:04,614 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2022-11-19 07:41:04,615 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-19 07:41:04,615 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 07:41:04,615 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 07:41:04,616 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:41:04,681 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:41:04,681 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:41:04,682 INFO L158 Benchmark]: Toolchain (without parser) took 3335.33ms. Allocated memory is still 153.1MB. Free memory was 123.0MB in the beginning and 125.5MB in the end (delta: -2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:41:04,682 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 47.4MB in the beginning and 47.3MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:41:04,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.57ms. Allocated memory is still 153.1MB. Free memory was 123.0MB in the beginning and 120.2MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:41:04,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.96ms. Allocated memory is still 153.1MB. Free memory was 120.2MB in the beginning and 118.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:41:04,684 INFO L158 Benchmark]: Boogie Preprocessor took 61.83ms. Allocated memory is still 153.1MB. Free memory was 118.1MB in the beginning and 116.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:41:04,685 INFO L158 Benchmark]: RCFGBuilder took 613.90ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 97.1MB in the end (delta: 19.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-19 07:41:04,685 INFO L158 Benchmark]: TraceAbstraction took 1958.49ms. Allocated memory is still 153.1MB. Free memory was 96.3MB in the beginning and 127.7MB in the end (delta: -31.4MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2022-11-19 07:41:04,685 INFO L158 Benchmark]: Witness Printer took 92.38ms. Allocated memory is still 153.1MB. Free memory was 127.7MB in the beginning and 125.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:41:04,689 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 90.2MB. Free memory was 47.4MB in the beginning and 47.3MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 523.57ms. Allocated memory is still 153.1MB. Free memory was 123.0MB in the beginning and 120.2MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.96ms. Allocated memory is still 153.1MB. Free memory was 120.2MB in the beginning and 118.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.83ms. Allocated memory is still 153.1MB. Free memory was 118.1MB in the beginning and 116.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 613.90ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 97.1MB in the end (delta: 19.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1958.49ms. Allocated memory is still 153.1MB. Free memory was 96.3MB in the beginning and 127.7MB in the end (delta: -31.4MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * Witness Printer took 92.38ms. Allocated memory is still 153.1MB. Free memory was 127.7MB in the beginning and 125.5MB in the end (delta: 2.3MB). 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: 692]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 692]: 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 2 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 30 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=1, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 19 PreInvPairs, 28 NumberOfFragments, 19 HoareAnnotationTreeSize, 19 FomulaSimplifications, 66 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 95 SizeOfPredicates, 1 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 9/14 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 2 specifications checked. All of them hold - InvariantResult [Line: 694]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 && i <= 1 - InvariantResult [Line: 692]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 07:41:04,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f865e-7cde-4e92-9f80-84ac7d628c02/bin/utaipan-I9t0OCRTmS/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