./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_63_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_63_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9 --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 b3b5ee2be3442dd10852b2cc8545d3cfa2e2c1e53bd7814777d06ebb7be0eaaa --- 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-6b4ec56 [2022-11-20 20:18:12,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:18:12,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:18:12,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:18:12,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:18:12,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:18:12,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:18:12,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:18:12,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:18:12,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:18:12,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:18:12,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:18:12,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:18:12,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:18:12,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:18:12,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:18:12,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:18:12,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:18:12,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:18:12,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:18:12,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:18:12,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:18:12,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:18:12,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:18:12,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:18:12,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:18:12,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:18:12,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:18:12,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:18:12,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:18:12,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:18:12,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:18:12,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:18:12,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:18:12,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:18:12,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:18:12,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:18:12,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:18:12,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:18:12,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:18:12,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:18:12,125 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-20 20:18:12,177 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:18:12,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:18:12,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:18:12,178 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:18:12,179 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:18:12,179 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:18:12,180 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:18:12,180 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:18:12,180 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:18:12,180 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:18:12,181 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:18:12,181 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:18:12,181 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:18:12,182 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:18:12,182 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:18:12,182 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:18:12,183 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:18:12,183 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:18:12,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:18:12,184 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 20:18:12,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:18:12,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:18:12,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:18:12,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:18:12,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:18:12,186 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 20:18:12,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:18:12,186 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:18:12,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:18:12,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:18:12,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:18:12,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:18:12,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:18:12,188 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:18:12,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:18:12,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:18:12,189 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:18:12,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:18:12,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:18:12,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:18:12,190 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_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3b5ee2be3442dd10852b2cc8545d3cfa2e2c1e53bd7814777d06ebb7be0eaaa [2022-11-20 20:18:12,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:18:12,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:18:12,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:18:12,488 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:18:12,488 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:18:12,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_63_good.i [2022-11-20 20:18:15,293 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:18:15,732 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:18:15,737 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_63_good.i [2022-11-20 20:18:15,765 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/data/c2a2611f7/8f56e92ac95244d6982bf526b0fd6123/FLAG44d9935df [2022-11-20 20:18:15,779 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/data/c2a2611f7/8f56e92ac95244d6982bf526b0fd6123 [2022-11-20 20:18:15,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:18:15,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:18:15,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:18:15,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:18:15,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:18:15,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:18:15" (1/1) ... [2022-11-20 20:18:15,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da14052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:15, skipping insertion in model container [2022-11-20 20:18:15,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:18:15" (1/1) ... [2022-11-20 20:18:15,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:18:15,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:18:16,226 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 20:18:16,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:18:16,684 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:18:16,704 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 20:18:16,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:18:16,902 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:18:16,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:16 WrapperNode [2022-11-20 20:18:16,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:18:16,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:18:16,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:18:16,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:18:16,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:16" (1/1) ... [2022-11-20 20:18:16,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:16" (1/1) ... [2022-11-20 20:18:16,981 INFO L138 Inliner]: procedures = 504, calls = 79, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 77 [2022-11-20 20:18:16,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:18:16,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:18:16,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:18:16,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:18:16,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:16" (1/1) ... [2022-11-20 20:18:16,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:16" (1/1) ... [2022-11-20 20:18:16,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:16" (1/1) ... [2022-11-20 20:18:16,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:16" (1/1) ... [2022-11-20 20:18:17,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:16" (1/1) ... [2022-11-20 20:18:17,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:16" (1/1) ... [2022-11-20 20:18:17,006 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:16" (1/1) ... [2022-11-20 20:18:17,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:16" (1/1) ... [2022-11-20 20:18:17,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:18:17,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:18:17,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:18:17,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:18:17,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:16" (1/1) ... [2022-11-20 20:18:17,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:18:17,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:18:17,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:18:17,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:18:17,160 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-20 20:18:17,160 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-20 20:18:17,160 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 20:18:17,160 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 20:18:17,161 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 20:18:17,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:18:17,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 20:18:17,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 20:18:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:18:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:18:17,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:18:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:18:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 20:18:17,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 20:18:17,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:18:17,318 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:18:17,320 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:18:17,569 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:18:17,640 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:18:17,645 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 20:18:17,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:18:17 BoogieIcfgContainer [2022-11-20 20:18:17,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:18:17,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:18:17,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:18:17,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:18:17,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:18:15" (1/3) ... [2022-11-20 20:18:17,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6637c3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:18:17, skipping insertion in model container [2022-11-20 20:18:17,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:16" (2/3) ... [2022-11-20 20:18:17,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6637c3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:18:17, skipping insertion in model container [2022-11-20 20:18:17,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:18:17" (3/3) ... [2022-11-20 20:18:17,657 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_63_good.i [2022-11-20 20:18:17,676 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:18:17,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 20:18:17,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:18:17,739 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;@383a7289, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:18:17,739 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 20:18:17,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 16 states have (on average 1.5) internal successors, (24), 24 states have internal predecessors, (24), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-20 20:18:17,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 20:18:17,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:18:17,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:18:17,753 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)] === [2022-11-20 20:18:17,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:18:17,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1736505006, now seen corresponding path program 1 times [2022-11-20 20:18:17,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:18:17,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262207957] [2022-11-20 20:18:17,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:18:17,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:18:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:18:18,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:18:18,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:18:18,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262207957] [2022-11-20 20:18:18,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262207957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:18:18,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:18:18,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:18:18,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143557789] [2022-11-20 20:18:18,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:18:18,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:18:18,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:18:18,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:18:18,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:18:18,293 INFO L87 Difference]: Start difference. First operand has 29 states, 16 states have (on average 1.5) internal successors, (24), 24 states have internal predecessors, (24), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) 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) [2022-11-20 20:18:18,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:18:18,337 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2022-11-20 20:18:18,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:18:18,340 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 [2022-11-20 20:18:18,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:18:18,347 INFO L225 Difference]: With dead ends: 49 [2022-11-20 20:18:18,347 INFO L226 Difference]: Without dead ends: 21 [2022-11-20 20:18:18,350 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 [2022-11-20 20:18:18,353 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:18:18,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 31 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:18:18,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-20 20:18:18,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-20 20:18:18,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:18:18,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-11-20 20:18:18,388 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2022-11-20 20:18:18,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:18:18,389 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-11-20 20:18:18,389 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) [2022-11-20 20:18:18,390 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-11-20 20:18:18,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 20:18:18,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:18:18,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:18:18,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:18:18,392 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 20:18:18,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:18:18,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1231509480, now seen corresponding path program 1 times [2022-11-20 20:18:18,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:18:18,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044602485] [2022-11-20 20:18:18,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:18:18,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:18:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:18:18,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:18:18,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:18:18,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044602485] [2022-11-20 20:18:18,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044602485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:18:18,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:18:18,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:18:18,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905095339] [2022-11-20 20:18:18,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:18:18,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:18:18,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:18:18,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:18:18,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:18:18,551 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-20 20:18:18,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:18:18,571 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-11-20 20:18:18,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:18:18,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 17 [2022-11-20 20:18:18,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:18:18,573 INFO L225 Difference]: With dead ends: 21 [2022-11-20 20:18:18,573 INFO L226 Difference]: Without dead ends: 20 [2022-11-20 20:18:18,574 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 [2022-11-20 20:18:18,575 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:18:18,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 27 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:18:18,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-20 20:18:18,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-20 20:18:18,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:18:18,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-20 20:18:18,581 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 17 [2022-11-20 20:18:18,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:18:18,581 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-20 20:18:18,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-20 20:18:18,582 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-20 20:18:18,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 20:18:18,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:18:18,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:18:18,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 20:18:18,583 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 20:18:18,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:18:18,584 INFO L85 PathProgramCache]: Analyzing trace with hash -477911708, now seen corresponding path program 1 times [2022-11-20 20:18:18,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:18:18,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760730311] [2022-11-20 20:18:18,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:18:18,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:18:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:18:18,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:18:18,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:18:18,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760730311] [2022-11-20 20:18:18,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760730311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:18:18,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:18:18,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:18:18,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201882080] [2022-11-20 20:18:18,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:18:18,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:18:18,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:18:18,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:18:18,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:18:18,702 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-20 20:18:18,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:18:18,721 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-20 20:18:18,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:18:18,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 18 [2022-11-20 20:18:18,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:18:18,723 INFO L225 Difference]: With dead ends: 20 [2022-11-20 20:18:18,723 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 20:18:18,724 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 [2022-11-20 20:18:18,725 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:18:18,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:18:18,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 20:18:18,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 20:18:18,727 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) [2022-11-20 20:18:18,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 20:18:18,728 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-11-20 20:18:18,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:18:18,728 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 20:18:18,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-20 20:18:18,728 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 20:18:18,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 20:18:18,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-20 20:18:18,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-20 20:18:18,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-20 20:18:18,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-20 20:18:18,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 20:18:18,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 20:18:18,757 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-20 20:18:18,758 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-20 20:18:18,758 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-20 20:18:18,758 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-20 20:18:18,758 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1603) no Hoare annotation was computed. [2022-11-20 20:18:18,759 INFO L899 garLoopResultBuilder]: For program point L1596(lines 1596 1611) no Hoare annotation was computed. [2022-11-20 20:18:18,759 INFO L899 garLoopResultBuilder]: For program point L1563(lines 1563 1570) no Hoare annotation was computed. [2022-11-20 20:18:18,759 INFO L899 garLoopResultBuilder]: For program point L1592(line 1592) no Hoare annotation was computed. [2022-11-20 20:18:18,759 INFO L899 garLoopResultBuilder]: For program point L1592-1(line 1592) no Hoare annotation was computed. [2022-11-20 20:18:18,760 INFO L895 garLoopResultBuilder]: At program point L1584(line 1584) the Hoare annotation is: (= |ULTIMATE.start_CWE190_Integer_Overflow__int_fgets_multiply_63b_goodG2BSink_~data~2#1| 2) [2022-11-20 20:18:18,760 INFO L895 garLoopResultBuilder]: At program point L1584-1(line 1584) the Hoare annotation is: (= |ULTIMATE.start_CWE190_Integer_Overflow__int_fgets_multiply_63b_goodG2BSink_~data~2#1| 2) [2022-11-20 20:18:18,760 INFO L899 garLoopResultBuilder]: For program point L1601(lines 1601 1609) no Hoare annotation was computed. [2022-11-20 20:18:18,760 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1592) no Hoare annotation was computed. [2022-11-20 20:18:18,761 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 20:18:18,761 INFO L895 garLoopResultBuilder]: At program point L1593(line 1593) the Hoare annotation is: (= |ULTIMATE.start_CWE190_Integer_Overflow__int_fgets_multiply_63b_goodG2BSink_~data~2#1| 2) [2022-11-20 20:18:18,761 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1592) no Hoare annotation was computed. [2022-11-20 20:18:18,762 INFO L895 garLoopResultBuilder]: At program point L1569(line 1569) the Hoare annotation is: (= |ULTIMATE.start_CWE190_Integer_Overflow__int_fgets_multiply_63b_goodG2BSink_~data~2#1| 2) [2022-11-20 20:18:18,762 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 20:18:18,762 INFO L899 garLoopResultBuilder]: For program point L1569-1(lines 1563 1570) no Hoare annotation was computed. [2022-11-20 20:18:18,762 INFO L899 garLoopResultBuilder]: For program point L1590(lines 1590 1594) no Hoare annotation was computed. [2022-11-20 20:18:18,762 INFO L902 garLoopResultBuilder]: At program point L1582(line 1582) the Hoare annotation is: true [2022-11-20 20:18:18,763 INFO L899 garLoopResultBuilder]: For program point L1582-1(line 1582) no Hoare annotation was computed. [2022-11-20 20:18:18,763 INFO L899 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2022-11-20 20:18:18,763 INFO L899 garLoopResultBuilder]: For program point L1603-1(line 1603) no Hoare annotation was computed. [2022-11-20 20:18:18,763 INFO L899 garLoopResultBuilder]: For program point L1599(lines 1599 1610) no Hoare annotation was computed. [2022-11-20 20:18:18,764 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1603) no Hoare annotation was computed. [2022-11-20 20:18:18,764 INFO L899 garLoopResultBuilder]: For program point L1587(lines 1587 1595) no Hoare annotation was computed. [2022-11-20 20:18:18,764 INFO L895 garLoopResultBuilder]: At program point L1608(line 1608) the Hoare annotation is: (= |ULTIMATE.start_CWE190_Integer_Overflow__int_fgets_multiply_63b_goodG2BSink_~data~2#1| 2) [2022-11-20 20:18:18,765 INFO L895 garLoopResultBuilder]: At program point L1604(line 1604) the Hoare annotation is: (= |ULTIMATE.start_CWE190_Integer_Overflow__int_fgets_multiply_63b_goodG2BSink_~data~2#1| 2) [2022-11-20 20:18:18,768 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-20 20:18:18,771 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 20:18:18,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:18:18 BoogieIcfgContainer [2022-11-20 20:18:18,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 20:18:18,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 20:18:18,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 20:18:18,786 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 20:18:18,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:18:17" (3/4) ... [2022-11-20 20:18:18,790 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 20:18:18,796 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-20 20:18:18,796 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-20 20:18:18,801 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-20 20:18:18,801 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-20 20:18:18,802 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 20:18:18,802 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 20:18:18,843 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 20:18:18,843 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 20:18:18,844 INFO L158 Benchmark]: Toolchain (without parser) took 3057.62ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 133.5MB in the beginning and 165.1MB in the end (delta: -31.6MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2022-11-20 20:18:18,844 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 167.8MB. Free memory was 138.7MB in the beginning and 138.6MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:18:18,844 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1114.51ms. Allocated memory is still 167.8MB. Free memory was 133.3MB in the beginning and 70.8MB in the end (delta: 62.6MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-20 20:18:18,845 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.86ms. Allocated memory is still 167.8MB. Free memory was 70.8MB in the beginning and 67.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 20:18:18,845 INFO L158 Benchmark]: Boogie Preprocessor took 27.47ms. Allocated memory is still 167.8MB. Free memory was 67.7MB in the beginning and 65.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:18:18,846 INFO L158 Benchmark]: RCFGBuilder took 638.00ms. Allocated memory is still 167.8MB. Free memory was 65.6MB in the beginning and 121.4MB in the end (delta: -55.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 20:18:18,846 INFO L158 Benchmark]: TraceAbstraction took 1134.41ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 121.1MB in the beginning and 168.3MB in the end (delta: -47.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:18:18,846 INFO L158 Benchmark]: Witness Printer took 57.19ms. Allocated memory is still 211.8MB. Free memory was 168.3MB in the beginning and 165.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 20:18:18,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 167.8MB. Free memory was 138.7MB in the beginning and 138.6MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1114.51ms. Allocated memory is still 167.8MB. Free memory was 133.3MB in the beginning and 70.8MB in the end (delta: 62.6MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.86ms. Allocated memory is still 167.8MB. Free memory was 70.8MB in the beginning and 67.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.47ms. Allocated memory is still 167.8MB. Free memory was 67.7MB in the beginning and 65.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 638.00ms. Allocated memory is still 167.8MB. Free memory was 65.6MB in the beginning and 121.4MB in the end (delta: -55.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1134.41ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 121.1MB in the beginning and 168.3MB in the end (delta: -47.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.19ms. Allocated memory is still 211.8MB. Free memory was 168.3MB in the beginning and 165.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1603]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1603]: 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, 29 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 84 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 53 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 17 PreInvPairs, 22 NumberOfFragments, 21 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 51 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 1584]: Loop Invariant Derived loop invariant: data == 2 RESULT: Ultimate proved your program to be correct! [2022-11-20 20:18:18,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4fb60f-c8a4-4fb1-9880-c8f051264f26/bin/utaipan-6cKwYrpEi9/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