./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_17_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_17_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 53bd4b9ce9f463e7465714e944e930f779abcfee52196564bd67f18dcfe45cc9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:49:30,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:49:30,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:49:30,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:49:30,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:49:30,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:49:30,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:49:30,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:49:30,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:49:30,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:49:30,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:49:30,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:49:30,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:49:30,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:49:30,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:49:30,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:49:30,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:49:30,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:49:30,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:49:30,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:49:30,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:49:30,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:49:30,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:49:30,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:49:30,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:49:30,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:49:30,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:49:30,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:49:30,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:49:30,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:49:30,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:49:30,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:49:30,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:49:30,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:49:30,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:49:30,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:49:30,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:49:30,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:49:30,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:49:30,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:49:30,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:49:30,952 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:49:31,018 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:49:31,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:49:31,019 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:49:31,019 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:49:31,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:49:31,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:49:31,020 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:49:31,021 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:49:31,021 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:49:31,021 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:49:31,021 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:49:31,022 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:49:31,022 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:49:31,022 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:49:31,022 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:49:31,022 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:49:31,023 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:49:31,023 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:49:31,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:49:31,024 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:49:31,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:49:31,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:49:31,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:49:31,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:49:31,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:49:31,025 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:49:31,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:49:31,025 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:49:31,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:49:31,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:49:31,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:49:31,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:49:31,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:49:31,027 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:49:31,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:49:31,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:49:31,027 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:49:31,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:49:31,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:49:31,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:49:31,028 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_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53bd4b9ce9f463e7465714e944e930f779abcfee52196564bd67f18dcfe45cc9 [2022-11-26 00:49:31,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:49:31,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:49:31,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:49:31,337 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:49:31,337 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:49:31,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_17_good.i [2022-11-26 00:49:34,498 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:49:34,887 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:49:34,891 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_17_good.i [2022-11-26 00:49:34,923 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/data/54a57eb99/0adef9657c7647f99f6b77de21ade289/FLAGa3a713276 [2022-11-26 00:49:34,938 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/data/54a57eb99/0adef9657c7647f99f6b77de21ade289 [2022-11-26 00:49:34,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:49:34,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:49:34,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:49:34,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:49:34,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:49:34,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:49:34" (1/1) ... [2022-11-26 00:49:34,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4444b775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:34, skipping insertion in model container [2022-11-26 00:49:34,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:49:34" (1/1) ... [2022-11-26 00:49:34,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:49:35,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:49:35,392 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:49:35,909 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:49:35,921 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:49:35,925 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:49:35,936 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:49:35,939 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:49:36,000 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:49:36,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:49:36,027 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:49:36,067 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:49:36,151 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:49:36,162 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:49:36,163 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:49:36,169 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:49:36,171 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:49:36,178 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:49:36,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:49:36,330 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:49:36,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:36 WrapperNode [2022-11-26 00:49:36,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:49:36,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:49:36,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:49:36,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:49:36,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:36" (1/1) ... [2022-11-26 00:49:36,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:36" (1/1) ... [2022-11-26 00:49:36,406 INFO L138 Inliner]: procedures = 501, calls = 59, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 96 [2022-11-26 00:49:36,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:49:36,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:49:36,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:49:36,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:49:36,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:36" (1/1) ... [2022-11-26 00:49:36,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:36" (1/1) ... [2022-11-26 00:49:36,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:36" (1/1) ... [2022-11-26 00:49:36,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:36" (1/1) ... [2022-11-26 00:49:36,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:36" (1/1) ... [2022-11-26 00:49:36,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:36" (1/1) ... [2022-11-26 00:49:36,434 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:36" (1/1) ... [2022-11-26 00:49:36,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:36" (1/1) ... [2022-11-26 00:49:36,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:49:36,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:49:36,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:49:36,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:49:36,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:36" (1/1) ... [2022-11-26 00:49:36,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:49:36,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:49:36,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:49:36,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:49:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-26 00:49:36,548 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-26 00:49:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:49:36,548 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:49:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:49:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:49:36,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:49:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:49:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:49:36,718 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:49:36,729 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:49:36,971 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:49:37,043 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:49:37,047 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-26 00:49:37,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:49:37 BoogieIcfgContainer [2022-11-26 00:49:37,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:49:37,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:49:37,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:49:37,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:49:37,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:49:34" (1/3) ... [2022-11-26 00:49:37,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1407b75a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:49:37, skipping insertion in model container [2022-11-26 00:49:37,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:36" (2/3) ... [2022-11-26 00:49:37,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1407b75a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:49:37, skipping insertion in model container [2022-11-26 00:49:37,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:49:37" (3/3) ... [2022-11-26 00:49:37,062 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_postdec_17_good.i [2022-11-26 00:49:37,082 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:49:37,082 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-26 00:49:37,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:49:37,156 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;@190513f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:49:37,157 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-26 00:49:37,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 37 states have internal predecessors, (41), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-26 00:49:37,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:49:37,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:37,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:37,171 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-26 00:49:37,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:37,177 INFO L85 PathProgramCache]: Analyzing trace with hash -895491279, now seen corresponding path program 1 times [2022-11-26 00:49:37,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:37,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203065670] [2022-11-26 00:49:37,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:37,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:37,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:37,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:37,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203065670] [2022-11-26 00:49:37,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203065670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:37,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:37,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:49:37,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397160391] [2022-11-26 00:49:37,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:37,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:49:37,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:37,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:49:37,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:49:37,545 INFO L87 Difference]: Start difference. First operand has 44 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 37 states have internal predecessors, (41), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:49:37,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:37,681 INFO L93 Difference]: Finished difference Result 85 states and 98 transitions. [2022-11-26 00:49:37,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:49:37,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2022-11-26 00:49:37,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:37,701 INFO L225 Difference]: With dead ends: 85 [2022-11-26 00:49:37,701 INFO L226 Difference]: Without dead ends: 44 [2022-11-26 00:49:37,705 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 [2022-11-26 00:49:37,711 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 3 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:37,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 114 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:49:37,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-26 00:49:37,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-26 00:49:37,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 38 states have internal predecessors, (42), 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) [2022-11-26 00:49:37,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2022-11-26 00:49:37,760 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 7 [2022-11-26 00:49:37,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:37,762 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2022-11-26 00:49:37,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:49:37,763 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2022-11-26 00:49:37,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:49:37,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:37,765 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:37,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:49:37,766 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-26 00:49:37,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:37,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1538756758, now seen corresponding path program 1 times [2022-11-26 00:49:37,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:37,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554501440] [2022-11-26 00:49:37,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:37,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:37,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:37,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:37,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554501440] [2022-11-26 00:49:37,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554501440] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:49:37,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344618476] [2022-11-26 00:49:37,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:37,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:37,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:49:37,904 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:49:37,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:49:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:38,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:49:38,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:49:38,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:38,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:49:38,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344618476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:38,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:49:38,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-26 00:49:38,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624406295] [2022-11-26 00:49:38,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:38,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:49:38,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:38,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:49:38,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:49:38,161 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2022-11-26 00:49:38,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:38,229 INFO L93 Difference]: Finished difference Result 78 states and 89 transitions. [2022-11-26 00:49:38,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:49:38,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 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 [2022-11-26 00:49:38,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:38,233 INFO L225 Difference]: With dead ends: 78 [2022-11-26 00:49:38,233 INFO L226 Difference]: Without dead ends: 40 [2022-11-26 00:49:38,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:49:38,237 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 32 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:38,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 79 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:38,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-26 00:49:38,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-26 00:49:38,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 34 states have internal predecessors, (37), 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) [2022-11-26 00:49:38,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2022-11-26 00:49:38,257 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 10 [2022-11-26 00:49:38,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:38,258 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2022-11-26 00:49:38,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2022-11-26 00:49:38,259 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2022-11-26 00:49:38,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:49:38,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:38,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:38,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:49:38,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:38,467 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-26 00:49:38,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:38,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1276061748, now seen corresponding path program 1 times [2022-11-26 00:49:38,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:38,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027569967] [2022-11-26 00:49:38,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:38,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:38,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:38,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:38,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027569967] [2022-11-26 00:49:38,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027569967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:38,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:38,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:49:38,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363888315] [2022-11-26 00:49:38,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:38,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:49:38,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:38,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:49:38,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:49:38,581 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:49:38,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:38,644 INFO L93 Difference]: Finished difference Result 68 states and 76 transitions. [2022-11-26 00:49:38,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:49:38,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2022-11-26 00:49:38,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:38,647 INFO L225 Difference]: With dead ends: 68 [2022-11-26 00:49:38,648 INFO L226 Difference]: Without dead ends: 35 [2022-11-26 00:49:38,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:49:38,651 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 33 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 [2022-11-26 00:49:38,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 33 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:38,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-26 00:49:38,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-26 00:49:38,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 29 states have internal predecessors, (32), 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) [2022-11-26 00:49:38,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-11-26 00:49:38,664 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 12 [2022-11-26 00:49:38,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:38,664 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-11-26 00:49:38,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:49:38,665 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-11-26 00:49:38,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:49:38,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:38,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:38,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:49:38,667 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-26 00:49:38,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:38,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1275966023, now seen corresponding path program 1 times [2022-11-26 00:49:38,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:38,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272221416] [2022-11-26 00:49:38,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:38,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:49:38,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:38,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272221416] [2022-11-26 00:49:38,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272221416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:38,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:38,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:49:38,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775993579] [2022-11-26 00:49:38,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:38,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:49:38,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:38,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:49:38,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:49:38,718 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:49:38,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:38,750 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2022-11-26 00:49:38,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:49:38,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2022-11-26 00:49:38,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:38,752 INFO L225 Difference]: With dead ends: 61 [2022-11-26 00:49:38,752 INFO L226 Difference]: Without dead ends: 43 [2022-11-26 00:49:38,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:49:38,754 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:38,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 55 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:38,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-26 00:49:38,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2022-11-26 00:49:38,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.434782608695652) internal successors, (33), 30 states have internal predecessors, (33), 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) [2022-11-26 00:49:38,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2022-11-26 00:49:38,763 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 12 [2022-11-26 00:49:38,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:38,763 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-11-26 00:49:38,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:49:38,764 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2022-11-26 00:49:38,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:49:38,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:38,765 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:38,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:49:38,765 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-26 00:49:38,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:38,766 INFO L85 PathProgramCache]: Analyzing trace with hash 754095898, now seen corresponding path program 1 times [2022-11-26 00:49:38,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:38,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327419786] [2022-11-26 00:49:38,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:38,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:49:38,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:38,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327419786] [2022-11-26 00:49:38,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327419786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:38,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:38,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:49:38,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508464864] [2022-11-26 00:49:38,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:38,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:49:38,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:38,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:49:38,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:49:38,862 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:49:38,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:38,931 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2022-11-26 00:49:38,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:49:38,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2022-11-26 00:49:38,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:38,933 INFO L225 Difference]: With dead ends: 43 [2022-11-26 00:49:38,933 INFO L226 Difference]: Without dead ends: 41 [2022-11-26 00:49:38,933 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 [2022-11-26 00:49:38,934 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 3 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:38,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 77 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:38,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-26 00:49:38,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-26 00:49:38,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 34 states have internal predecessors, (37), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-26 00:49:38,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-11-26 00:49:38,944 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 16 [2022-11-26 00:49:38,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:38,944 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-11-26 00:49:38,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:49:38,944 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-11-26 00:49:38,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-26 00:49:38,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:38,945 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:38,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:49:38,946 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-26 00:49:38,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:38,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1251505096, now seen corresponding path program 1 times [2022-11-26 00:49:38,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:38,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982931484] [2022-11-26 00:49:38,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:38,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:39,011 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-26 00:49:39,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:39,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982931484] [2022-11-26 00:49:39,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982931484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:39,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:39,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:49:39,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016045808] [2022-11-26 00:49:39,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:39,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:49:39,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:39,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:49:39,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:49:39,015 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:49:39,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:39,057 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2022-11-26 00:49:39,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:49:39,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 20 [2022-11-26 00:49:39,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:39,059 INFO L225 Difference]: With dead ends: 59 [2022-11-26 00:49:39,059 INFO L226 Difference]: Without dead ends: 44 [2022-11-26 00:49:39,059 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 [2022-11-26 00:49:39,060 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 3 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:39,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 83 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:39,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-26 00:49:39,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-26 00:49:39,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 37 states have internal predecessors, (40), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-26 00:49:39,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-11-26 00:49:39,068 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 20 [2022-11-26 00:49:39,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:39,069 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-11-26 00:49:39,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:49:39,069 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-11-26 00:49:39,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:49:39,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:39,070 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:39,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:49:39,071 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-26 00:49:39,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:39,071 INFO L85 PathProgramCache]: Analyzing trace with hash -594117095, now seen corresponding path program 1 times [2022-11-26 00:49:39,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:39,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786804881] [2022-11-26 00:49:39,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:39,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:39,146 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-26 00:49:39,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:39,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786804881] [2022-11-26 00:49:39,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786804881] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:49:39,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177894435] [2022-11-26 00:49:39,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:39,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:39,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:49:39,149 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:49:39,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:49:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:39,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:49:39,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:49:39,304 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:49:39,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:49:39,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177894435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:39,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:49:39,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-26 00:49:39,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831026546] [2022-11-26 00:49:39,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:39,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:49:39,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:39,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:49:39,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:49:39,308 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-11-26 00:49:39,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:39,357 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2022-11-26 00:49:39,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:49:39,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) Word has length 24 [2022-11-26 00:49:39,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:39,360 INFO L225 Difference]: With dead ends: 68 [2022-11-26 00:49:39,360 INFO L226 Difference]: Without dead ends: 37 [2022-11-26 00:49:39,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:49:39,362 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 19 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:39,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 60 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:39,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-26 00:49:39,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-26 00:49:39,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 31 states have internal predecessors, (33), 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) [2022-11-26 00:49:39,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-11-26 00:49:39,378 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 24 [2022-11-26 00:49:39,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:39,378 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-11-26 00:49:39,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-11-26 00:49:39,379 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-11-26 00:49:39,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-26 00:49:39,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:39,379 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:39,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:49:39,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:39,588 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-26 00:49:39,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:39,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1022887391, now seen corresponding path program 1 times [2022-11-26 00:49:39,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:39,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125079292] [2022-11-26 00:49:39,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:39,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:39,700 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-26 00:49:39,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:39,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125079292] [2022-11-26 00:49:39,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125079292] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:49:39,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40061291] [2022-11-26 00:49:39,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:39,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:39,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:49:39,709 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:49:39,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:49:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:39,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:49:39,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:49:39,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-26 00:49:39,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:49:39,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40061291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:39,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:49:39,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-26 00:49:39,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745744760] [2022-11-26 00:49:39,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:39,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:49:39,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:39,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:49:39,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:49:39,836 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:49:39,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:39,873 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2022-11-26 00:49:39,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:49:39,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 23 [2022-11-26 00:49:39,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:39,877 INFO L225 Difference]: With dead ends: 51 [2022-11-26 00:49:39,877 INFO L226 Difference]: Without dead ends: 33 [2022-11-26 00:49:39,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:49:39,882 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 24 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:39,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 61 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:39,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-26 00:49:39,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-26 00:49:39,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 27 states have internal predecessors, (28), 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) [2022-11-26 00:49:39,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-11-26 00:49:39,890 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 23 [2022-11-26 00:49:39,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:39,891 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-11-26 00:49:39,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:49:39,891 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-11-26 00:49:39,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:49:39,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:39,892 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:39,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-26 00:49:40,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-26 00:49:40,097 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-26 00:49:40,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:40,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1644743407, now seen corresponding path program 1 times [2022-11-26 00:49:40,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:40,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81484529] [2022-11-26 00:49:40,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:40,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:40,152 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-26 00:49:40,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:40,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81484529] [2022-11-26 00:49:40,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81484529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:40,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:40,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:49:40,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257047703] [2022-11-26 00:49:40,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:40,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:49:40,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:40,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:49:40,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:49:40,155 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:49:40,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:40,201 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2022-11-26 00:49:40,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:49:40,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 24 [2022-11-26 00:49:40,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:40,202 INFO L225 Difference]: With dead ends: 38 [2022-11-26 00:49:40,202 INFO L226 Difference]: Without dead ends: 37 [2022-11-26 00:49:40,202 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 [2022-11-26 00:49:40,203 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:40,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 65 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:40,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-26 00:49:40,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2022-11-26 00:49:40,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 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) [2022-11-26 00:49:40,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2022-11-26 00:49:40,206 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 24 [2022-11-26 00:49:40,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:40,207 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2022-11-26 00:49:40,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:49:40,207 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-11-26 00:49:40,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-26 00:49:40,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:40,208 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:40,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:49:40,208 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-26 00:49:40,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:40,209 INFO L85 PathProgramCache]: Analyzing trace with hash -552561814, now seen corresponding path program 1 times [2022-11-26 00:49:40,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:40,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358927517] [2022-11-26 00:49:40,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:40,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:40,256 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-26 00:49:40,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:40,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358927517] [2022-11-26 00:49:40,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358927517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:40,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:40,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:49:40,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13494687] [2022-11-26 00:49:40,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:40,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:49:40,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:40,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:49:40,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:49:40,258 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:49:40,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:40,288 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2022-11-26 00:49:40,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:49:40,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 25 [2022-11-26 00:49:40,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:40,289 INFO L225 Difference]: With dead ends: 35 [2022-11-26 00:49:40,289 INFO L226 Difference]: Without dead ends: 34 [2022-11-26 00:49:40,290 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 [2022-11-26 00:49:40,290 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:40,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 55 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:40,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-26 00:49:40,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-26 00:49:40,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 28 states have internal predecessors, (29), 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) [2022-11-26 00:49:40,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-11-26 00:49:40,296 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 25 [2022-11-26 00:49:40,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:40,296 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-11-26 00:49:40,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:49:40,296 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-11-26 00:49:40,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-26 00:49:40,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:40,297 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:40,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:49:40,297 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-26 00:49:40,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:40,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1601909401, now seen corresponding path program 1 times [2022-11-26 00:49:40,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:40,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592849767] [2022-11-26 00:49:40,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:40,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:40,353 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:49:40,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:40,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592849767] [2022-11-26 00:49:40,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592849767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:40,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:40,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:49:40,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832254317] [2022-11-26 00:49:40,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:40,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:49:40,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:40,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:49:40,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:49:40,355 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:49:40,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:40,389 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2022-11-26 00:49:40,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:49:40,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-11-26 00:49:40,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:40,390 INFO L225 Difference]: With dead ends: 41 [2022-11-26 00:49:40,390 INFO L226 Difference]: Without dead ends: 39 [2022-11-26 00:49:40,391 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 [2022-11-26 00:49:40,391 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 3 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:40,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 64 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:40,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-26 00:49:40,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-26 00:49:40,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 30 states have (on average 1.1) internal successors, (33), 32 states have internal predecessors, (33), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-26 00:49:40,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2022-11-26 00:49:40,397 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 30 [2022-11-26 00:49:40,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:40,397 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2022-11-26 00:49:40,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:49:40,397 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2022-11-26 00:49:40,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:40,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:40,398 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:40,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:49:40,398 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-26 00:49:40,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:40,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1101212581, now seen corresponding path program 1 times [2022-11-26 00:49:40,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:40,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264255519] [2022-11-26 00:49:40,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:40,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:40,468 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:49:40,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:40,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264255519] [2022-11-26 00:49:40,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264255519] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:49:40,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025740806] [2022-11-26 00:49:40,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:40,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:40,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:49:40,470 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:49:40,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:49:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:40,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:49:40,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:49:40,596 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:49:40,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:49:40,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025740806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:40,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:49:40,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-26 00:49:40,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937688602] [2022-11-26 00:49:40,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:40,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:49:40,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:40,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:49:40,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:49:40,601 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:49:40,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:40,634 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2022-11-26 00:49:40,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:49:40,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2022-11-26 00:49:40,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:40,636 INFO L225 Difference]: With dead ends: 42 [2022-11-26 00:49:40,636 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:49:40,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:49:40,638 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:40,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 53 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:40,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:49:40,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:49:40,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:40,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:49:40,640 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-11-26 00:49:40,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:40,640 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:49:40,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:49:40,641 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:49:40,641 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:49:40,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-11-26 00:49:40,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-11-26 00:49:40,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-11-26 00:49:40,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-11-26 00:49:40,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-11-26 00:49:40,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-11-26 00:49:40,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-11-26 00:49:40,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-11-26 00:49:40,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-11-26 00:49:40,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-11-26 00:49:40,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-11-26 00:49:40,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-11-26 00:49:40,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:49:40,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-26 00:49:40,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-26 00:49:41,001 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-26 00:49:41,001 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-26 00:49:41,001 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-26 00:49:41,002 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-26 00:49:41,002 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1561) no Hoare annotation was computed. [2022-11-26 00:49:41,002 INFO L895 garLoopResultBuilder]: At program point L1567(line 1567) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) (= |ULTIMATE.start_goodB2G_~k~0#1| 0) (<= (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648) 0)) [2022-11-26 00:49:41,002 INFO L899 garLoopResultBuilder]: For program point L1567-1(lines 1557 1569) no Hoare annotation was computed. [2022-11-26 00:49:41,002 INFO L895 garLoopResultBuilder]: At program point L1563(line 1563) the Hoare annotation is: false [2022-11-26 00:49:41,003 INFO L899 garLoopResultBuilder]: For program point L1559(lines 1559 1568) no Hoare annotation was computed. [2022-11-26 00:49:41,003 INFO L899 garLoopResultBuilder]: For program point L1580-2(line 1580) no Hoare annotation was computed. [2022-11-26 00:49:41,003 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1580) no Hoare annotation was computed. [2022-11-26 00:49:41,003 INFO L899 garLoopResultBuilder]: For program point L1580-3(line 1580) no Hoare annotation was computed. [2022-11-26 00:49:41,003 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1576) no Hoare annotation was computed. [2022-11-26 00:49:41,004 INFO L895 garLoopResultBuilder]: At program point L1580-4(lines 1580 1587) the Hoare annotation is: (let ((.cse5 (+ |ULTIMATE.start_goodG2B_~data~1#1| 2))) (let ((.cse0 (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|)) (.cse1 (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|)) (.cse2 (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|)) (.cse3 (<= .cse5 0)) (.cse4 (<= (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648) 0))) (or (and .cse0 (= |ULTIMATE.start_goodG2B_~j~0#1| 0) .cse1 .cse2 .cse3 .cse4 (<= 0 .cse5)) (and .cse0 (<= 1 |ULTIMATE.start_goodG2B_~j~0#1|) .cse1 .cse2 .cse3 .cse4)))) [2022-11-26 00:49:41,004 INFO L899 garLoopResultBuilder]: For program point L1576-3(line 1576) no Hoare annotation was computed. [2022-11-26 00:49:41,004 INFO L899 garLoopResultBuilder]: For program point L1576-4(line 1576) no Hoare annotation was computed. [2022-11-26 00:49:41,004 INFO L895 garLoopResultBuilder]: At program point L1576-5(lines 1576 1579) the Hoare annotation is: (let ((.cse4 (+ |ULTIMATE.start_goodG2B_~data~1#1| 2))) (let ((.cse0 (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|)) (.cse1 (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|)) (.cse2 (<= (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648) 0)) (.cse3 (<= 0 .cse4))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_goodG2B_~h~0#1| 0) .cse3) (and .cse0 (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|) .cse1 (<= .cse4 0) .cse2 .cse3)))) [2022-11-26 00:49:41,004 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1553) no Hoare annotation was computed. [2022-11-26 00:49:41,004 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-26 00:49:41,005 INFO L902 garLoopResultBuilder]: At program point L1597(line 1597) the Hoare annotation is: true [2022-11-26 00:49:41,005 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1557) no Hoare annotation was computed. [2022-11-26 00:49:41,005 INFO L899 garLoopResultBuilder]: For program point L1597-1(line 1597) no Hoare annotation was computed. [2022-11-26 00:49:41,005 INFO L895 garLoopResultBuilder]: At program point L1585(line 1585) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) (= |ULTIMATE.start_goodG2B_~j~0#1| 0) (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|) (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|) (<= (+ |ULTIMATE.start_goodG2B_~data~1#1| 2) 0) (<= (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648) 0)) [2022-11-26 00:49:41,005 INFO L899 garLoopResultBuilder]: For program point L1585-1(lines 1580 1587) no Hoare annotation was computed. [2022-11-26 00:49:41,005 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1583) no Hoare annotation was computed. [2022-11-26 00:49:41,006 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1553) no Hoare annotation was computed. [2022-11-26 00:49:41,006 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-26 00:49:41,006 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1557) no Hoare annotation was computed. [2022-11-26 00:49:41,006 INFO L899 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2022-11-26 00:49:41,006 INFO L899 garLoopResultBuilder]: For program point L1561-1(line 1561) no Hoare annotation was computed. [2022-11-26 00:49:41,006 INFO L899 garLoopResultBuilder]: For program point L1557-2(line 1557) no Hoare annotation was computed. [2022-11-26 00:49:41,006 INFO L899 garLoopResultBuilder]: For program point L1557-3(line 1557) no Hoare annotation was computed. [2022-11-26 00:49:41,007 INFO L895 garLoopResultBuilder]: At program point L1557-4(lines 1557 1569) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|)) (.cse1 (<= (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648) 0))) (or (and .cse0 (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|) .cse1) (and .cse0 (= |ULTIMATE.start_goodB2G_~k~0#1| 0) .cse1))) [2022-11-26 00:49:41,007 INFO L899 garLoopResultBuilder]: For program point L1553-3(line 1553) no Hoare annotation was computed. [2022-11-26 00:49:41,007 INFO L899 garLoopResultBuilder]: For program point L1553-4(line 1553) no Hoare annotation was computed. [2022-11-26 00:49:41,007 INFO L895 garLoopResultBuilder]: At program point L1553-5(lines 1553 1556) the Hoare annotation is: (or (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) (<= (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648) 0)) (= |ULTIMATE.start_goodB2G_~i~1#1| 0)) [2022-11-26 00:49:41,007 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1583) no Hoare annotation was computed. [2022-11-26 00:49:41,007 INFO L902 garLoopResultBuilder]: At program point L1599(line 1599) the Hoare annotation is: true [2022-11-26 00:49:41,008 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1561) no Hoare annotation was computed. [2022-11-26 00:49:41,008 INFO L902 garLoopResultBuilder]: At program point L1599-1(line 1599) the Hoare annotation is: true [2022-11-26 00:49:41,008 INFO L899 garLoopResultBuilder]: For program point L1583(line 1583) no Hoare annotation was computed. [2022-11-26 00:49:41,008 INFO L899 garLoopResultBuilder]: For program point L1583-1(line 1583) no Hoare annotation was computed. [2022-11-26 00:49:41,008 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1580) no Hoare annotation was computed. [2022-11-26 00:49:41,008 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1576) no Hoare annotation was computed. [2022-11-26 00:49:41,012 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:41,014 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:49:41,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:49:41 BoogieIcfgContainer [2022-11-26 00:49:41,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:49:41,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:49:41,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:49:41,042 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:49:41,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:49:37" (3/4) ... [2022-11-26 00:49:41,045 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:49:41,050 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-26 00:49:41,051 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-26 00:49:41,055 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-26 00:49:41,057 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-26 00:49:41,057 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-26 00:49:41,057 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:49:41,114 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:49:41,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:49:41,115 INFO L158 Benchmark]: Toolchain (without parser) took 6172.96ms. Allocated memory is still 188.7MB. Free memory was 157.0MB in the beginning and 72.1MB in the end (delta: 84.9MB). Peak memory consumption was 87.3MB. Max. memory is 16.1GB. [2022-11-26 00:49:41,115 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:49:41,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1388.18ms. Allocated memory is still 188.7MB. Free memory was 156.4MB in the beginning and 93.3MB in the end (delta: 63.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-26 00:49:41,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.30ms. Allocated memory is still 188.7MB. Free memory was 93.3MB in the beginning and 155.6MB in the end (delta: -62.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2022-11-26 00:49:41,117 INFO L158 Benchmark]: Boogie Preprocessor took 30.52ms. Allocated memory is still 188.7MB. Free memory was 155.6MB in the beginning and 153.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:49:41,117 INFO L158 Benchmark]: RCFGBuilder took 611.91ms. Allocated memory is still 188.7MB. Free memory was 153.5MB in the beginning and 137.7MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:49:41,118 INFO L158 Benchmark]: TraceAbstraction took 3988.64ms. Allocated memory is still 188.7MB. Free memory was 136.7MB in the beginning and 75.2MB in the end (delta: 61.5MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2022-11-26 00:49:41,118 INFO L158 Benchmark]: Witness Printer took 72.82ms. Allocated memory is still 188.7MB. Free memory was 75.2MB in the beginning and 72.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:49:41,120 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1388.18ms. Allocated memory is still 188.7MB. Free memory was 156.4MB in the beginning and 93.3MB in the end (delta: 63.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.30ms. Allocated memory is still 188.7MB. Free memory was 93.3MB in the beginning and 155.6MB in the end (delta: -62.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.52ms. Allocated memory is still 188.7MB. Free memory was 155.6MB in the beginning and 153.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 611.91ms. Allocated memory is still 188.7MB. Free memory was 153.5MB in the beginning and 137.7MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3988.64ms. Allocated memory is still 188.7MB. Free memory was 136.7MB in the beginning and 75.2MB in the end (delta: 61.5MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. * Witness Printer took 72.82ms. Allocated memory is still 188.7MB. Free memory was 75.2MB in the beginning and 72.1MB 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: 1553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1583]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1583]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1580]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1580]: 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, 44 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 799 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 481 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 360 IncrementalHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 318 mSDtfsCounter, 360 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 30 PreInvPairs, 42 NumberOfFragments, 177 HoareAnnotationTreeSize, 30 FomulaSimplifications, 19 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 498 SizeOfPredicates, 4 NumberOfNonLiveVariables, 491 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 74/78 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 12 specifications checked. All of them hold - InvariantResult [Line: 1576]: Loop Invariant Derived loop invariant: ((((1 <= i && 1 <= k) && data + 2147483648 <= 0) && h == 0) && 0 <= data + 2) || (((((1 <= i && 1 <= h) && 1 <= k) && data + 2 <= 0) && data + 2147483648 <= 0) && 0 <= data + 2) - InvariantResult [Line: 1580]: Loop Invariant Derived loop invariant: ((((((1 <= i && j == 0) && 1 <= h) && 1 <= k) && data + 2 <= 0) && data + 2147483648 <= 0) && 0 <= data + 2) || (((((1 <= i && 1 <= j) && 1 <= h) && 1 <= k) && data + 2 <= 0) && data + 2147483648 <= 0) - InvariantResult [Line: 1599]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1553]: Loop Invariant Derived loop invariant: (1 <= i && data + 2147483648 <= 0) || i == 0 - InvariantResult [Line: 1557]: Loop Invariant Derived loop invariant: ((1 <= i && 1 <= k) && data + 2147483648 <= 0) || ((1 <= i && k == 0) && data + 2147483648 <= 0) RESULT: Ultimate proved your program to be correct! [2022-11-26 00:49:41,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c42ffd9e-ba4d-48bb-a35c-2c822394bfb1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE