./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba --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 8010433a2885bc09df7e6beec8fa2694aed6b40a08013ee4556c296a9d8c249c --- 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-b5237d8 [2022-11-22 01:44:38,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:44:38,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:44:38,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:44:38,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:44:38,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:44:38,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:44:38,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:44:38,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:44:38,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:44:38,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:44:38,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:44:38,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:44:38,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:44:38,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:44:38,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:44:38,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:44:38,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:44:38,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:44:38,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:44:38,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:44:38,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:44:38,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:44:38,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:44:38,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:44:38,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:44:38,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:44:38,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:44:38,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:44:38,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:44:38,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:44:38,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:44:38,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:44:38,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:44:38,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:44:38,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:44:38,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:44:38,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:44:38,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:44:38,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:44:38,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:44:38,101 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 01:44:38,125 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:44:38,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:44:38,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:44:38,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:44:38,126 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:44:38,126 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:44:38,126 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:44:38,126 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:44:38,127 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:44:38,127 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:44:38,127 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:44:38,127 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:44:38,127 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:44:38,128 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:44:38,128 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:44:38,128 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:44:38,128 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:44:38,128 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:44:38,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:44:38,129 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:44:38,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:44:38,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:44:38,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:44:38,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:44:38,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:44:38,130 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:44:38,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:44:38,131 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:44:38,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:44:38,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:44:38,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:44:38,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:44:38,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:44:38,132 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:44:38,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:44:38,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:44:38,132 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:44:38,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:44:38,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:44:38,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:44:38,133 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_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8010433a2885bc09df7e6beec8fa2694aed6b40a08013ee4556c296a9d8c249c [2022-11-22 01:44:38,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:44:38,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:44:38,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:44:38,375 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:44:38,376 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:44:38,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_good.i [2022-11-22 01:44:41,396 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:44:41,804 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:44:41,811 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_good.i [2022-11-22 01:44:41,829 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/data/f86d2df01/45c752e968ca43939aecf9c6ec537840/FLAG9a684ad27 [2022-11-22 01:44:41,843 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/data/f86d2df01/45c752e968ca43939aecf9c6ec537840 [2022-11-22 01:44:41,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:44:41,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:44:41,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:44:41,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:44:41,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:44:41,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:44:41" (1/1) ... [2022-11-22 01:44:41,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6e2384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:41, skipping insertion in model container [2022-11-22 01:44:41,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:44:41" (1/1) ... [2022-11-22 01:44:41,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:44:41,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:44:42,383 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:44:42,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:44:42,991 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:44:43,010 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:44:43,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:44:43,213 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:44:43,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:43 WrapperNode [2022-11-22 01:44:43,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:44:43,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:44:43,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:44:43,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:44:43,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:43" (1/1) ... [2022-11-22 01:44:43,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:43" (1/1) ... [2022-11-22 01:44:43,269 INFO L138 Inliner]: procedures = 504, calls = 69, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 71 [2022-11-22 01:44:43,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:44:43,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:44:43,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:44:43,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:44:43,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:43" (1/1) ... [2022-11-22 01:44:43,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:43" (1/1) ... [2022-11-22 01:44:43,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:43" (1/1) ... [2022-11-22 01:44:43,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:43" (1/1) ... [2022-11-22 01:44:43,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:43" (1/1) ... [2022-11-22 01:44:43,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:43" (1/1) ... [2022-11-22 01:44:43,296 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:43" (1/1) ... [2022-11-22 01:44:43,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:43" (1/1) ... [2022-11-22 01:44:43,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:44:43,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:44:43,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:44:43,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:44:43,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:43" (1/1) ... [2022-11-22 01:44:43,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:44:43,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:44:43,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:44:43,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:44:43,398 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-22 01:44:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-22 01:44:43,398 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-22 01:44:43,398 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-22 01:44:43,399 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-22 01:44:43,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:44:43,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:44:43,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:44:43,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:44:43,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:44:43,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:44:43,400 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-22 01:44:43,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:44:43,587 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:44:43,589 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:44:43,797 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:44:43,827 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:44:43,827 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:44:43,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:44:43 BoogieIcfgContainer [2022-11-22 01:44:43,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:44:43,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:44:43,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:44:43,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:44:43,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:44:41" (1/3) ... [2022-11-22 01:44:43,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707b1f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:44:43, skipping insertion in model container [2022-11-22 01:44:43,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:43" (2/3) ... [2022-11-22 01:44:43,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707b1f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:44:43, skipping insertion in model container [2022-11-22 01:44:43,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:44:43" (3/3) ... [2022-11-22 01:44:43,838 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_41_good.i [2022-11-22 01:44:43,857 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:44:43,857 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 01:44:43,902 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:44:43,908 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;@4e5e66ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:44:43,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-22 01:44:43,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 20 states have internal predecessors, (20), 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) [2022-11-22 01:44:43,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:44:43,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:43,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:43,922 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)] === [2022-11-22 01:44:43,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:43,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1302981962, now seen corresponding path program 1 times [2022-11-22 01:44:43,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:43,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058121758] [2022-11-22 01:44:43,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:43,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:44,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:44:44,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:44,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058121758] [2022-11-22 01:44:44,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058121758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:44,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:44,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:44:44,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684778656] [2022-11-22 01:44:44,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:44,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:44:44,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:44,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:44:44,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:44:44,436 INFO L87 Difference]: Start difference. First operand has 27 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 20 states have internal predecessors, (20), 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 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-22 01:44:44,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:44,507 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2022-11-22 01:44:44,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:44:44,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 9 [2022-11-22 01:44:44,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:44,517 INFO L225 Difference]: With dead ends: 27 [2022-11-22 01:44:44,517 INFO L226 Difference]: Without dead ends: 21 [2022-11-22 01:44:44,520 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 [2022-11-22 01:44:44,522 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 24 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:44,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 37 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:44:44,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-22 01:44:44,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-22 01:44:44,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 16 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:44:44,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-11-22 01:44:44,558 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 9 [2022-11-22 01:44:44,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:44,561 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-11-22 01:44:44,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-22 01:44:44,562 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-11-22 01:44:44,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 01:44:44,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:44,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:44,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:44:44,563 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:44:44,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:44,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1737735099, now seen corresponding path program 1 times [2022-11-22 01:44:44,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:44,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337148281] [2022-11-22 01:44:44,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:44,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:44,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:44:44,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:44,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337148281] [2022-11-22 01:44:44,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337148281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:44,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:44,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:44:44,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987303175] [2022-11-22 01:44:44,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:44,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:44:44,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:44,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:44:44,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:44:44,629 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-22 01:44:44,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:44,664 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-11-22 01:44:44,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:44:44,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 10 [2022-11-22 01:44:44,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:44,665 INFO L225 Difference]: With dead ends: 21 [2022-11-22 01:44:44,665 INFO L226 Difference]: Without dead ends: 20 [2022-11-22 01:44:44,665 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 [2022-11-22 01:44:44,667 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:44,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:44:44,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-22 01:44:44,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-22 01:44:44,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.25) internal successors, (15), 15 states have internal predecessors, (15), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:44:44,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-11-22 01:44:44,679 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 10 [2022-11-22 01:44:44,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:44,681 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-11-22 01:44:44,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-22 01:44:44,681 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-11-22 01:44:44,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 01:44:44,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:44,685 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:44,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:44:44,686 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:44:44,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:44,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1393174427, now seen corresponding path program 1 times [2022-11-22 01:44:44,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:44,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111520042] [2022-11-22 01:44:44,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:44,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:44,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:44:44,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:44,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111520042] [2022-11-22 01:44:44,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111520042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:44,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:44,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:44:44,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935487201] [2022-11-22 01:44:44,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:44,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:44:44,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:44,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:44:44,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:44:44,825 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-22 01:44:44,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:44,851 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2022-11-22 01:44:44,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:44:44,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2022-11-22 01:44:44,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:44,855 INFO L225 Difference]: With dead ends: 20 [2022-11-22 01:44:44,855 INFO L226 Difference]: Without dead ends: 19 [2022-11-22 01:44:44,855 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 [2022-11-22 01:44:44,857 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:44,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 32 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:44:44,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-22 01:44:44,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-22 01:44:44,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 14 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:44:44,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-11-22 01:44:44,864 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2022-11-22 01:44:44,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:44,864 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-11-22 01:44:44,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-22 01:44:44,865 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-11-22 01:44:44,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 01:44:44,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:44,866 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:44,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:44:44,866 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:44:44,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:44,867 INFO L85 PathProgramCache]: Analyzing trace with hash -238734206, now seen corresponding path program 1 times [2022-11-22 01:44:44,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:44,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570447416] [2022-11-22 01:44:44,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:44,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:45,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:44:45,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:45,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570447416] [2022-11-22 01:44:45,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570447416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:45,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:45,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:44:45,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830001850] [2022-11-22 01:44:45,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:45,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:44:45,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:45,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:44:45,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:44:45,014 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:44:45,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:45,042 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2022-11-22 01:44:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:44:45,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2022-11-22 01:44:45,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:45,043 INFO L225 Difference]: With dead ends: 19 [2022-11-22 01:44:45,043 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:44:45,047 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 [2022-11-22 01:44:45,052 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:45,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:44:45,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:44:45,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:44:45,054 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) [2022-11-22 01:44:45,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:44:45,054 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-22 01:44:45,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:45,055 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:44:45,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:44:45,055 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:44:45,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:44:45,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-22 01:44:45,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-22 01:44:45,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-22 01:44:45,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-22 01:44:45,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:44:45,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:44:45,102 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-22 01:44:45,102 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-22 01:44:45,104 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-22 01:44:45,104 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-22 01:44:45,104 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1567) no Hoare annotation was computed. [2022-11-22 01:44:45,104 INFO L895 garLoopResultBuilder]: At program point L1569(line 1569) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G_~data~1#1| 2147483647) (<= |ULTIMATE.start_goodB2GSink_~data#1| 2147483647)) [2022-11-22 01:44:45,105 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:44:45,105 INFO L899 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2022-11-22 01:44:45,105 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1551) no Hoare annotation was computed. [2022-11-22 01:44:45,105 INFO L899 garLoopResultBuilder]: For program point L1567-1(line 1567) no Hoare annotation was computed. [2022-11-22 01:44:45,105 INFO L899 garLoopResultBuilder]: For program point L1565(lines 1565 1574) no Hoare annotation was computed. [2022-11-22 01:44:45,106 INFO L895 garLoopResultBuilder]: At program point L1588(line 1588) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~1#1| 2147483647) [2022-11-22 01:44:45,106 INFO L899 garLoopResultBuilder]: For program point L1588-1(lines 1582 1589) no Hoare annotation was computed. [2022-11-22 01:44:45,106 INFO L895 garLoopResultBuilder]: At program point L1553(line 1553) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G_~data~1#1| 2147483647) (<= |ULTIMATE.start_goodB2GSink_~data#1| 2147483647)) [2022-11-22 01:44:45,106 INFO L899 garLoopResultBuilder]: For program point L1553-1(lines 1548 1555) no Hoare annotation was computed. [2022-11-22 01:44:45,106 INFO L899 garLoopResultBuilder]: For program point L1551(line 1551) no Hoare annotation was computed. [2022-11-22 01:44:45,107 INFO L899 garLoopResultBuilder]: For program point L1582(lines 1582 1589) no Hoare annotation was computed. [2022-11-22 01:44:45,107 INFO L899 garLoopResultBuilder]: For program point L1551-1(line 1551) no Hoare annotation was computed. [2022-11-22 01:44:45,108 INFO L895 garLoopResultBuilder]: At program point L1603(line 1603) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G_~data~1#1| 2147483647) (<= |ULTIMATE.start_goodB2GSink_~data#1| 2147483647)) [2022-11-22 01:44:45,108 INFO L895 garLoopResultBuilder]: At program point L1603-1(line 1603) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G_~data~1#1| 2147483647) (<= |ULTIMATE.start_goodB2GSink_~data#1| 2147483647)) [2022-11-22 01:44:45,111 INFO L902 garLoopResultBuilder]: At program point L1601(line 1601) the Hoare annotation is: true [2022-11-22 01:44:45,112 INFO L899 garLoopResultBuilder]: For program point L1601-1(line 1601) no Hoare annotation was computed. [2022-11-22 01:44:45,112 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1567) no Hoare annotation was computed. [2022-11-22 01:44:45,112 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1551) no Hoare annotation was computed. [2022-11-22 01:44:45,113 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:44:45,115 INFO L895 garLoopResultBuilder]: At program point L1573(line 1573) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G_~data~1#1| 2147483647) (<= |ULTIMATE.start_goodB2GSink_~data#1| 2147483647)) [2022-11-22 01:44:45,116 INFO L899 garLoopResultBuilder]: For program point L1573-1(lines 1563 1575) no Hoare annotation was computed. [2022-11-22 01:44:45,121 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-22 01:44:45,124 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:44:45,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:44:45 BoogieIcfgContainer [2022-11-22 01:44:45,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:44:45,145 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:44:45,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:44:45,145 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:44:45,146 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:44:43" (3/4) ... [2022-11-22 01:44:45,148 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:44:45,154 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-22 01:44:45,154 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-22 01:44:45,162 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-22 01:44:45,162 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-22 01:44:45,162 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-22 01:44:45,163 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:44:45,222 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:44:45,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:44:45,224 INFO L158 Benchmark]: Toolchain (without parser) took 3376.80ms. Allocated memory is still 163.6MB. Free memory was 131.3MB in the beginning and 133.0MB in the end (delta: -1.7MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. [2022-11-22 01:44:45,224 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 121.6MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:44:45,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1366.29ms. Allocated memory is still 163.6MB. Free memory was 131.3MB in the beginning and 68.6MB in the end (delta: 62.6MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-22 01:44:45,225 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.76ms. Allocated memory is still 163.6MB. Free memory was 68.6MB in the beginning and 65.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:44:45,225 INFO L158 Benchmark]: Boogie Preprocessor took 29.42ms. Allocated memory is still 163.6MB. Free memory was 65.3MB in the beginning and 64.4MB in the end (delta: 879.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:44:45,225 INFO L158 Benchmark]: RCFGBuilder took 529.10ms. Allocated memory is still 163.6MB. Free memory was 64.4MB in the beginning and 128.2MB in the end (delta: -63.7MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2022-11-22 01:44:45,226 INFO L158 Benchmark]: TraceAbstraction took 1311.42ms. Allocated memory is still 163.6MB. Free memory was 127.1MB in the beginning and 55.8MB in the end (delta: 71.3MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2022-11-22 01:44:45,226 INFO L158 Benchmark]: Witness Printer took 78.04ms. Allocated memory is still 163.6MB. Free memory was 55.8MB in the beginning and 133.0MB in the end (delta: -77.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-22 01:44:45,228 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 121.6MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1366.29ms. Allocated memory is still 163.6MB. Free memory was 131.3MB in the beginning and 68.6MB in the end (delta: 62.6MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.76ms. Allocated memory is still 163.6MB. Free memory was 68.6MB in the beginning and 65.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.42ms. Allocated memory is still 163.6MB. Free memory was 65.3MB in the beginning and 64.4MB in the end (delta: 879.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 529.10ms. Allocated memory is still 163.6MB. Free memory was 64.4MB in the beginning and 128.2MB in the end (delta: -63.7MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1311.42ms. Allocated memory is still 163.6MB. Free memory was 127.1MB in the beginning and 55.8MB in the end (delta: 71.3MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. * Witness Printer took 78.04ms. Allocated memory is still 163.6MB. Free memory was 55.8MB in the beginning and 133.0MB in the end (delta: -77.2MB). Peak memory consumption was 6.3MB. 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: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: 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, 27 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 132 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 68 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 13 NumberOfFragments, 41 HoareAnnotationTreeSize, 13 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, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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: 1603]: Loop Invariant Derived loop invariant: data <= 2147483647 && data <= 2147483647 RESULT: Ultimate proved your program to be correct! [2022-11-22 01:44:45,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2594ca41-cf24-474c-910b-939324fcc4b2/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE