./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_02_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_02_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh --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 b5393bd8f46f9141266d49b2816fe08d44ea09d57e239bfa5c07b22aa84ab87f --- 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-2329fc7 [2022-12-14 08:54:29,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:54:29,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:54:29,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:54:29,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:54:29,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:54:29,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:54:29,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:54:29,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:54:29,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:54:29,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:54:29,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:54:29,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:54:29,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:54:29,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:54:29,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:54:29,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:54:29,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:54:29,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:54:29,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:54:29,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:54:29,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:54:29,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:54:29,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:54:29,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:54:29,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:54:29,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:54:29,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:54:29,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:54:29,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:54:29,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:54:29,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:54:29,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:54:29,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:54:29,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:54:29,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:54:29,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:54:29,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:54:29,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:54:29,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:54:29,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:54:29,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 08:54:29,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:54:29,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:54:29,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:54:29,788 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:54:29,789 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:54:29,789 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:54:29,789 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:54:29,789 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:54:29,789 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:54:29,789 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:54:29,789 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:54:29,789 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:54:29,789 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:54:29,790 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:54:29,790 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:54:29,790 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:54:29,790 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:54:29,790 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:54:29,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:54:29,791 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:54:29,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:54:29,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:54:29,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:54:29,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:54:29,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:54:29,791 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 08:54:29,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:54:29,792 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:54:29,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:54:29,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:54:29,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:54:29,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:54:29,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:54:29,792 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:54:29,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:54:29,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:54:29,793 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:54:29,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:54:29,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:54:29,793 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:54:29,793 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_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5393bd8f46f9141266d49b2816fe08d44ea09d57e239bfa5c07b22aa84ab87f [2022-12-14 08:54:29,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:54:29,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:54:29,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:54:29,992 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:54:29,993 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:54:29,994 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_02_good.i [2022-12-14 08:54:32,573 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:54:32,864 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:54:32,864 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_02_good.i [2022-12-14 08:54:32,876 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/data/45a8eae2e/19e773d7b6054a43a9211be5b059c599/FLAGdecaef0e7 [2022-12-14 08:54:32,887 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/data/45a8eae2e/19e773d7b6054a43a9211be5b059c599 [2022-12-14 08:54:32,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:54:32,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:54:32,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:54:32,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:54:32,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:54:32,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:54:32" (1/1) ... [2022-12-14 08:54:32,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36cf1bea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:32, skipping insertion in model container [2022-12-14 08:54:32,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:54:32" (1/1) ... [2022-12-14 08:54:32,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:54:32,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:54:33,179 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 08:54:33,460 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:54:33,465 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:54:33,466 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:54:33,468 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:54:33,468 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:54:33,485 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 08:54:33,502 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 08:54:33,511 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:54:33,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:54:33,521 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:54:33,542 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 08:54:33,584 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:54:33,586 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:54:33,587 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:54:33,589 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:54:33,590 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:54:33,595 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 08:54:33,598 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 08:54:33,601 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:54:33,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:54:33,739 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:54:33,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:33 WrapperNode [2022-12-14 08:54:33,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:54:33,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:54:33,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:54:33,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:54:33,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:33" (1/1) ... [2022-12-14 08:54:33,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:33" (1/1) ... [2022-12-14 08:54:33,792 INFO L138 Inliner]: procedures = 504, calls = 85, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 111 [2022-12-14 08:54:33,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:54:33,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:54:33,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:54:33,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:54:33,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:33" (1/1) ... [2022-12-14 08:54:33,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:33" (1/1) ... [2022-12-14 08:54:33,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:33" (1/1) ... [2022-12-14 08:54:33,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:33" (1/1) ... [2022-12-14 08:54:33,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:33" (1/1) ... [2022-12-14 08:54:33,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:33" (1/1) ... [2022-12-14 08:54:33,815 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:33" (1/1) ... [2022-12-14 08:54:33,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:33" (1/1) ... [2022-12-14 08:54:33,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:54:33,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:54:33,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:54:33,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:54:33,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:33" (1/1) ... [2022-12-14 08:54:33,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:54:33,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:54:33,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:54:33,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:54:33,887 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 08:54:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 08:54:33,887 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 08:54:33,887 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 08:54:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 08:54:33,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:54:33,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 08:54:33,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:54:33,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:54:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:54:33,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:54:33,888 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 08:54:33,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:54:33,993 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:54:33,995 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:54:34,141 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:54:34,164 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:54:34,164 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-14 08:54:34,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:54:34 BoogieIcfgContainer [2022-12-14 08:54:34,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:54:34,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:54:34,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:54:34,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:54:34,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:54:32" (1/3) ... [2022-12-14 08:54:34,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12bc3f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:54:34, skipping insertion in model container [2022-12-14 08:54:34,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:33" (2/3) ... [2022-12-14 08:54:34,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12bc3f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:54:34, skipping insertion in model container [2022-12-14 08:54:34,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:54:34" (3/3) ... [2022-12-14 08:54:34,171 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_02_good.i [2022-12-14 08:54:34,185 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:54:34,185 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 08:54:34,218 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:54:34,223 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;@2e891abd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:54:34,223 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 08:54:34,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 49 states have internal predecessors, (51), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 08:54:34,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 08:54:34,232 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:54:34,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:54:34,232 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 08:54:34,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:54:34,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1115333066, now seen corresponding path program 1 times [2022-12-14 08:54:34,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:54:34,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623775745] [2022-12-14 08:54:34,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:54:34,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:54:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:54:34,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:54:34,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:54:34,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623775745] [2022-12-14 08:54:34,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623775745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:54:34,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:54:34,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:54:34,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60555628] [2022-12-14 08:54:34,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:54:34,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:54:34,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:54:34,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:54:34,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:54:34,413 INFO L87 Difference]: Start difference. First operand has 54 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 49 states have internal predecessors, (51), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-12-14 08:54:34,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:54:34,444 INFO L93 Difference]: Finished difference Result 99 states and 135 transitions. [2022-12-14 08:54:34,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:54:34,447 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 [2022-12-14 08:54:34,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:54:34,452 INFO L225 Difference]: With dead ends: 99 [2022-12-14 08:54:34,453 INFO L226 Difference]: Without dead ends: 47 [2022-12-14 08:54:34,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:54:34,457 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:54:34,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:54:34,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-12-14 08:54:34,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-12-14 08:54:34,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 43 states have internal predecessors, (43), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 08:54:34,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions. [2022-12-14 08:54:34,484 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 59 transitions. Word has length 10 [2022-12-14 08:54:34,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:54:34,484 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 59 transitions. [2022-12-14 08:54:34,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-12-14 08:54:34,485 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 59 transitions. [2022-12-14 08:54:34,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 08:54:34,485 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:54:34,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:54:34,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:54:34,486 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 08:54:34,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:54:34,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1209573681, now seen corresponding path program 1 times [2022-12-14 08:54:34,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:54:34,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596919404] [2022-12-14 08:54:34,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:54:34,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:54:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:54:34,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:54:34,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:54:34,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596919404] [2022-12-14 08:54:34,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596919404] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:54:34,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:54:34,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:54:34,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471088573] [2022-12-14 08:54:34,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:54:34,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:54:34,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:54:34,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:54:34,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:34,569 INFO L87 Difference]: Start difference. First operand 47 states and 59 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (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) [2022-12-14 08:54:34,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:54:34,608 INFO L93 Difference]: Finished difference Result 110 states and 137 transitions. [2022-12-14 08:54:34,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:54:34,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (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 [2022-12-14 08:54:34,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:54:34,610 INFO L225 Difference]: With dead ends: 110 [2022-12-14 08:54:34,610 INFO L226 Difference]: Without dead ends: 77 [2022-12-14 08:54:34,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:34,612 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 34 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:54:34,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 94 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:54:34,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-14 08:54:34,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 50. [2022-12-14 08:54:34,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 45 states have internal predecessors, (47), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 08:54:34,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2022-12-14 08:54:34,620 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 12 [2022-12-14 08:54:34,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:54:34,620 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2022-12-14 08:54:34,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (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) [2022-12-14 08:54:34,621 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2022-12-14 08:54:34,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 08:54:34,621 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:54:34,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:54:34,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:54:34,621 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 08:54:34,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:54:34,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1157921479, now seen corresponding path program 1 times [2022-12-14 08:54:34,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:54:34,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018379854] [2022-12-14 08:54:34,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:54:34,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:54:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:54:34,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:54:34,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:54:34,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018379854] [2022-12-14 08:54:34,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018379854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:54:34,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:54:34,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:54:34,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834397068] [2022-12-14 08:54:34,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:54:34,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:54:34,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:54:34,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:54:34,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:34,686 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-14 08:54:34,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:54:34,719 INFO L93 Difference]: Finished difference Result 77 states and 97 transitions. [2022-12-14 08:54:34,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:54:34,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 13 [2022-12-14 08:54:34,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:54:34,720 INFO L225 Difference]: With dead ends: 77 [2022-12-14 08:54:34,720 INFO L226 Difference]: Without dead ends: 76 [2022-12-14 08:54:34,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:34,721 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 28 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:54:34,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 123 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:54:34,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-12-14 08:54:34,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 49. [2022-12-14 08:54:34,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.393939393939394) internal successors, (46), 44 states have internal predecessors, (46), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 08:54:34,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2022-12-14 08:54:34,727 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 13 [2022-12-14 08:54:34,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:54:34,727 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2022-12-14 08:54:34,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-14 08:54:34,727 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2022-12-14 08:54:34,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 08:54:34,728 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:54:34,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:54:34,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:54:34,728 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 08:54:34,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:54:34,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1850132637, now seen corresponding path program 1 times [2022-12-14 08:54:34,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:54:34,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680055705] [2022-12-14 08:54:34,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:54:34,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:54:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:54:34,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:54:34,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:54:34,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680055705] [2022-12-14 08:54:34,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680055705] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:54:34,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:54:34,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:54:34,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592194890] [2022-12-14 08:54:34,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:54:34,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:54:34,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:54:34,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:54:34,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:34,790 INFO L87 Difference]: Start difference. First operand 49 states and 62 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-12-14 08:54:34,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:54:34,822 INFO L93 Difference]: Finished difference Result 85 states and 101 transitions. [2022-12-14 08:54:34,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:54:34,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 17 [2022-12-14 08:54:34,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:54:34,823 INFO L225 Difference]: With dead ends: 85 [2022-12-14 08:54:34,823 INFO L226 Difference]: Without dead ends: 65 [2022-12-14 08:54:34,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:34,825 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 20 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:54:34,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 87 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:54:34,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-12-14 08:54:34,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 51. [2022-12-14 08:54:34,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 45 states have internal predecessors, (49), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 08:54:34,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions. [2022-12-14 08:54:34,833 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 17 [2022-12-14 08:54:34,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:54:34,833 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions. [2022-12-14 08:54:34,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-12-14 08:54:34,833 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2022-12-14 08:54:34,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 08:54:34,834 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:54:34,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:54:34,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:54:34,834 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 08:54:34,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:54:34,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1519536790, now seen corresponding path program 1 times [2022-12-14 08:54:34,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:54:34,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899361110] [2022-12-14 08:54:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:54:34,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:54:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:54:34,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:54:34,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:54:34,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899361110] [2022-12-14 08:54:34,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899361110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:54:34,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:54:34,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:54:34,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98827686] [2022-12-14 08:54:34,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:54:34,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:54:34,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:54:34,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:54:34,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:34,897 INFO L87 Difference]: Start difference. First operand 51 states and 65 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-14 08:54:34,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:54:34,921 INFO L93 Difference]: Finished difference Result 65 states and 80 transitions. [2022-12-14 08:54:34,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:54:34,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 18 [2022-12-14 08:54:34,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:54:34,923 INFO L225 Difference]: With dead ends: 65 [2022-12-14 08:54:34,923 INFO L226 Difference]: Without dead ends: 64 [2022-12-14 08:54:34,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:34,924 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 15 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:54:34,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 99 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:54:34,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-12-14 08:54:34,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 50. [2022-12-14 08:54:34,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 44 states have internal predecessors, (48), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 08:54:34,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 64 transitions. [2022-12-14 08:54:34,930 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 64 transitions. Word has length 18 [2022-12-14 08:54:34,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:54:34,930 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 64 transitions. [2022-12-14 08:54:34,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-14 08:54:34,930 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2022-12-14 08:54:34,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 08:54:34,931 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:54:34,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:54:34,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:54:34,931 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 08:54:34,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:54:34,932 INFO L85 PathProgramCache]: Analyzing trace with hash 234619184, now seen corresponding path program 1 times [2022-12-14 08:54:34,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:54:34,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053317241] [2022-12-14 08:54:34,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:54:34,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:54:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:54:34,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:54:34,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:54:34,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053317241] [2022-12-14 08:54:34,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053317241] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:54:34,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:54:34,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:54:34,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40633714] [2022-12-14 08:54:34,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:54:34,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:54:34,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:54:34,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:54:34,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:34,986 INFO L87 Difference]: Start difference. First operand 50 states and 64 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-12-14 08:54:35,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:54:35,005 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2022-12-14 08:54:35,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:54:35,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 19 [2022-12-14 08:54:35,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:54:35,006 INFO L225 Difference]: With dead ends: 50 [2022-12-14 08:54:35,006 INFO L226 Difference]: Without dead ends: 49 [2022-12-14 08:54:35,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:35,008 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 9 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:54:35,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 81 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:54:35,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-12-14 08:54:35,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-12-14 08:54:35,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 43 states have internal predecessors, (47), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 08:54:35,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2022-12-14 08:54:35,015 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 19 [2022-12-14 08:54:35,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:54:35,015 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2022-12-14 08:54:35,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-12-14 08:54:35,016 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2022-12-14 08:54:35,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 08:54:35,016 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:54:35,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:54:35,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 08:54:35,017 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 08:54:35,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:54:35,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1316739751, now seen corresponding path program 1 times [2022-12-14 08:54:35,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:54:35,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902615460] [2022-12-14 08:54:35,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:54:35,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:54:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:54:35,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:54:35,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:54:35,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902615460] [2022-12-14 08:54:35,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902615460] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:54:35,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:54:35,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:54:35,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426595093] [2022-12-14 08:54:35,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:54:35,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:54:35,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:54:35,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:54:35,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:35,067 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-12-14 08:54:35,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:54:35,085 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2022-12-14 08:54:35,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:54:35,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 20 [2022-12-14 08:54:35,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:54:35,086 INFO L225 Difference]: With dead ends: 55 [2022-12-14 08:54:35,086 INFO L226 Difference]: Without dead ends: 48 [2022-12-14 08:54:35,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:35,087 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 6 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:54:35,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 81 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:54:35,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-14 08:54:35,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-12-14 08:54:35,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.25) internal successors, (45), 41 states have internal predecessors, (45), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 08:54:35,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2022-12-14 08:54:35,094 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 20 [2022-12-14 08:54:35,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:54:35,094 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2022-12-14 08:54:35,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-12-14 08:54:35,095 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2022-12-14 08:54:35,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 08:54:35,096 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:54:35,096 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 08:54:35,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 08:54:35,096 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 08:54:35,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:54:35,097 INFO L85 PathProgramCache]: Analyzing trace with hash 2139702477, now seen corresponding path program 1 times [2022-12-14 08:54:35,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:54:35,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360710038] [2022-12-14 08:54:35,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:54:35,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:54:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:54:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:54:35,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:54:35,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360710038] [2022-12-14 08:54:35,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360710038] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:54:35,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:54:35,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:54:35,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318212264] [2022-12-14 08:54:35,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:54:35,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:54:35,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:54:35,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:54:35,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:35,154 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-12-14 08:54:35,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:54:35,169 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2022-12-14 08:54:35,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:54:35,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 26 [2022-12-14 08:54:35,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:54:35,171 INFO L225 Difference]: With dead ends: 48 [2022-12-14 08:54:35,171 INFO L226 Difference]: Without dead ends: 47 [2022-12-14 08:54:35,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:35,172 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 2 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:54:35,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 86 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:54:35,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-12-14 08:54:35,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-12-14 08:54:35,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 40 states have internal predecessors, (44), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 08:54:35,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 60 transitions. [2022-12-14 08:54:35,178 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 60 transitions. Word has length 26 [2022-12-14 08:54:35,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:54:35,178 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 60 transitions. [2022-12-14 08:54:35,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-12-14 08:54:35,179 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 60 transitions. [2022-12-14 08:54:35,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 08:54:35,179 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:54:35,180 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 08:54:35,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 08:54:35,180 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 08:54:35,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:54:35,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1906267507, now seen corresponding path program 1 times [2022-12-14 08:54:35,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:54:35,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139238319] [2022-12-14 08:54:35,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:54:35,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:54:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:54:35,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:54:35,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:54:35,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139238319] [2022-12-14 08:54:35,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139238319] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:54:35,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:54:35,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:54:35,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138895970] [2022-12-14 08:54:35,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:54:35,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:54:35,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:54:35,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:54:35,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:35,217 INFO L87 Difference]: Start difference. First operand 47 states and 60 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-12-14 08:54:35,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:54:35,230 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2022-12-14 08:54:35,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:54:35,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 27 [2022-12-14 08:54:35,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:54:35,230 INFO L225 Difference]: With dead ends: 47 [2022-12-14 08:54:35,230 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 08:54:35,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:54:35,231 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:54:35,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:54:35,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 08:54:35,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 08:54:35,232 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) [2022-12-14 08:54:35,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 08:54:35,232 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2022-12-14 08:54:35,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:54:35,232 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 08:54:35,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-12-14 08:54:35,233 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 08:54:35,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 08:54:35,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-12-14 08:54:35,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-12-14 08:54:35,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-14 08:54:35,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-14 08:54:35,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-14 08:54:35,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-14 08:54:35,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-14 08:54:35,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-14 08:54:35,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 08:54:35,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 08:54:35,270 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2022-12-14 08:54:35,270 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-12-14 08:54:35,270 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2022-12-14 08:54:35,270 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-12-14 08:54:35,271 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1610) no Hoare annotation was computed. [2022-12-14 08:54:35,271 INFO L902 garLoopResultBuilder]: At program point L1654(line 1654) the Hoare annotation is: true [2022-12-14 08:54:35,271 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1653) no Hoare annotation was computed. [2022-12-14 08:54:35,271 INFO L899 garLoopResultBuilder]: For program point L1572(lines 1572 1583) no Hoare annotation was computed. [2022-12-14 08:54:35,271 INFO L899 garLoopResultBuilder]: For program point L1572-1(lines 1548 1585) no Hoare annotation was computed. [2022-12-14 08:54:35,271 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1576) no Hoare annotation was computed. [2022-12-14 08:54:35,271 INFO L899 garLoopResultBuilder]: For program point L1556(lines 1556 1563) no Hoare annotation was computed. [2022-12-14 08:54:35,271 INFO L895 garLoopResultBuilder]: At program point L1581(line 1581) the Hoare annotation is: (<= (+ |ULTIMATE.start_goodB2G1_~data~0#1| 1) 0) [2022-12-14 08:54:35,271 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1576) no Hoare annotation was computed. [2022-12-14 08:54:35,271 INFO L899 garLoopResultBuilder]: For program point L1590(lines 1590 1603) no Hoare annotation was computed. [2022-12-14 08:54:35,272 INFO L899 garLoopResultBuilder]: For program point L1590-2(lines 1587 1619) no Hoare annotation was computed. [2022-12-14 08:54:35,272 INFO L895 garLoopResultBuilder]: At program point L1615(line 1615) the Hoare annotation is: (<= (+ |ULTIMATE.start_goodB2G2_~data~1#1| 1) 0) [2022-12-14 08:54:35,272 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 08:54:35,272 INFO L899 garLoopResultBuilder]: For program point L1574(lines 1574 1582) no Hoare annotation was computed. [2022-12-14 08:54:35,272 INFO L899 garLoopResultBuilder]: For program point L1624(lines 1624 1631) no Hoare annotation was computed. [2022-12-14 08:54:35,272 INFO L899 garLoopResultBuilder]: For program point L1624-1(lines 1621 1640) no Hoare annotation was computed. [2022-12-14 08:54:35,272 INFO L899 garLoopResultBuilder]: For program point L1641(lines 1641 1657) no Hoare annotation was computed. [2022-12-14 08:54:35,272 INFO L899 garLoopResultBuilder]: For program point L1608(lines 1608 1616) no Hoare annotation was computed. [2022-12-14 08:54:35,272 INFO L895 garLoopResultBuilder]: At program point L1600(line 1600) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G2_~data~1#1| 1073741823)) [2022-12-14 08:54:35,272 INFO L899 garLoopResultBuilder]: For program point L1600-1(lines 1594 1601) no Hoare annotation was computed. [2022-12-14 08:54:35,272 INFO L899 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2022-12-14 08:54:35,273 INFO L899 garLoopResultBuilder]: For program point L1576-1(line 1576) no Hoare annotation was computed. [2022-12-14 08:54:35,273 INFO L895 garLoopResultBuilder]: At program point L1568(line 1568) the Hoare annotation is: false [2022-12-14 08:54:35,273 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1636) no Hoare annotation was computed. [2022-12-14 08:54:35,273 INFO L895 garLoopResultBuilder]: At program point L1626(line 1626) the Hoare annotation is: false [2022-12-14 08:54:35,273 INFO L899 garLoopResultBuilder]: For program point L1552(lines 1552 1565) no Hoare annotation was computed. [2022-12-14 08:54:35,273 INFO L899 garLoopResultBuilder]: For program point L1552-2(lines 1549 1585) no Hoare annotation was computed. [2022-12-14 08:54:35,273 INFO L899 garLoopResultBuilder]: For program point L1610(line 1610) no Hoare annotation was computed. [2022-12-14 08:54:35,273 INFO L895 garLoopResultBuilder]: At program point L1577(line 1577) the Hoare annotation is: (and (<= 0 (+ 1073741823 |ULTIMATE.start_goodB2G1_~data~0#1|)) (<= (+ |ULTIMATE.start_goodB2G1_~data~0#1| 1) 0)) [2022-12-14 08:54:35,273 INFO L899 garLoopResultBuilder]: For program point L1610-1(line 1610) no Hoare annotation was computed. [2022-12-14 08:54:35,273 INFO L902 garLoopResultBuilder]: At program point L1668(line 1668) the Hoare annotation is: true [2022-12-14 08:54:35,273 INFO L899 garLoopResultBuilder]: For program point L1668-1(line 1668) no Hoare annotation was computed. [2022-12-14 08:54:35,274 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 08:54:35,274 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1636) no Hoare annotation was computed. [2022-12-14 08:54:35,274 INFO L899 garLoopResultBuilder]: For program point L1594(lines 1594 1601) no Hoare annotation was computed. [2022-12-14 08:54:35,274 INFO L899 garLoopResultBuilder]: For program point L1586(lines 1586 1619) no Hoare annotation was computed. [2022-12-14 08:54:35,274 INFO L895 garLoopResultBuilder]: At program point L1611(line 1611) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodB2G2_~data~1#1| 1073741823)) (<= (+ |ULTIMATE.start_goodB2G2_~data~1#1| 1) 0)) [2022-12-14 08:54:35,274 INFO L899 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2022-12-14 08:54:35,274 INFO L899 garLoopResultBuilder]: For program point L1636-1(line 1636) no Hoare annotation was computed. [2022-12-14 08:54:35,274 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1610) no Hoare annotation was computed. [2022-12-14 08:54:35,274 INFO L895 garLoopResultBuilder]: At program point L1562(line 1562) the Hoare annotation is: (<= 0 (+ 1073741823 |ULTIMATE.start_goodB2G1_~data~0#1|)) [2022-12-14 08:54:35,274 INFO L899 garLoopResultBuilder]: For program point L1562-1(lines 1556 1563) no Hoare annotation was computed. [2022-12-14 08:54:35,274 INFO L899 garLoopResultBuilder]: For program point L1653(line 1653) no Hoare annotation was computed. [2022-12-14 08:54:35,275 INFO L899 garLoopResultBuilder]: For program point L1620(lines 1620 1640) no Hoare annotation was computed. [2022-12-14 08:54:35,275 INFO L899 garLoopResultBuilder]: For program point L1653-1(line 1653) no Hoare annotation was computed. [2022-12-14 08:54:35,275 INFO L899 garLoopResultBuilder]: For program point L1645-2(lines 1642 1657) no Hoare annotation was computed. [2022-12-14 08:54:35,275 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1653) no Hoare annotation was computed. [2022-12-14 08:54:35,275 INFO L902 garLoopResultBuilder]: At program point L1670(line 1670) the Hoare annotation is: true [2022-12-14 08:54:35,275 INFO L895 garLoopResultBuilder]: At program point L1637(line 1637) the Hoare annotation is: (let ((.cse0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) (and (<= .cse0 0) (<= 0 .cse0))) [2022-12-14 08:54:35,275 INFO L902 garLoopResultBuilder]: At program point L1670-1(line 1670) the Hoare annotation is: true [2022-12-14 08:54:35,277 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:54:35,279 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:54:35,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:54:35 BoogieIcfgContainer [2022-12-14 08:54:35,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:54:35,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:54:35,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:54:35,285 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:54:35,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:54:34" (3/4) ... [2022-12-14 08:54:35,287 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 08:54:35,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-14 08:54:35,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-14 08:54:35,295 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-12-14 08:54:35,295 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 08:54:35,295 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 08:54:35,295 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 08:54:35,295 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 08:54:35,322 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 08:54:35,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:54:35,322 INFO L158 Benchmark]: Toolchain (without parser) took 2432.91ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 63.7MB in the beginning and 77.7MB in the end (delta: -14.0MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2022-12-14 08:54:35,322 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 107.0MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:54:35,323 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.15ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 63.7MB in the beginning and 72.9MB in the end (delta: -9.2MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2022-12-14 08:54:35,323 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.64ms. Allocated memory is still 144.7MB. Free memory was 72.9MB in the beginning and 70.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:54:35,323 INFO L158 Benchmark]: Boogie Preprocessor took 26.27ms. Allocated memory is still 144.7MB. Free memory was 70.0MB in the beginning and 68.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:54:35,323 INFO L158 Benchmark]: RCFGBuilder took 345.82ms. Allocated memory is still 144.7MB. Free memory was 68.0MB in the beginning and 97.3MB in the end (delta: -29.3MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-12-14 08:54:35,323 INFO L158 Benchmark]: TraceAbstraction took 1117.19ms. Allocated memory is still 144.7MB. Free memory was 96.4MB in the beginning and 81.9MB in the end (delta: 14.4MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2022-12-14 08:54:35,324 INFO L158 Benchmark]: Witness Printer took 37.18ms. Allocated memory is still 144.7MB. Free memory was 81.9MB in the beginning and 77.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 08:54:35,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 107.0MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 849.15ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 63.7MB in the beginning and 72.9MB in the end (delta: -9.2MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.64ms. Allocated memory is still 144.7MB. Free memory was 72.9MB in the beginning and 70.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.27ms. Allocated memory is still 144.7MB. Free memory was 70.0MB in the beginning and 68.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 345.82ms. Allocated memory is still 144.7MB. Free memory was 68.0MB in the beginning and 97.3MB in the end (delta: -29.3MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1117.19ms. Allocated memory is still 144.7MB. Free memory was 96.4MB in the beginning and 81.9MB in the end (delta: 14.4MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Witness Printer took 37.18ms. Allocated memory is still 144.7MB. Free memory was 81.9MB in the beginning and 77.7MB in the end (delta: 4.2MB). 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: 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: 1610]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1610]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1653]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1653]: 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, 54 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 134 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 795 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 323 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 142 IncrementalHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 472 mSDtfsCounter, 142 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 9 MinimizatonAttempts, 82 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 40 PreInvPairs, 49 NumberOfFragments, 61 HoareAnnotationTreeSize, 40 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1670]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 08:54:35,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e3a4c9-7a99-4955-8076-508031f9a5ab/bin/utaipan-gh47qXpMRh/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