./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_11_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_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/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_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_11_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/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_3d4b4531-8b8e-4c0b-99a2-07689d81a491/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 cc2bcff0042736d227f789c1cd907dd165725deef10fad1d3e8a6f5d799859cf --- 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 05:24:34,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:24:34,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:24:34,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:24:34,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:24:34,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:24:34,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:24:34,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:24:34,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:24:34,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:24:34,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:24:34,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:24:34,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:24:34,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:24:34,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:24:34,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:24:34,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:24:34,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:24:34,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:24:34,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:24:34,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:24:34,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:24:34,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:24:34,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:24:34,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:24:34,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:24:34,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:24:34,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:24:34,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:24:34,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:24:34,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:24:34,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:24:34,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:24:34,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:24:34,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:24:34,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:24:34,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:24:34,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:24:34,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:24:34,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:24:34,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:24:34,535 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 05:24:34,550 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:24:34,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:24:34,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:24:34,557 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:24:34,558 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:24:34,558 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:24:34,558 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:24:34,558 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:24:34,559 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:24:34,559 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:24:34,559 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:24:34,559 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:24:34,559 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:24:34,559 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:24:34,559 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:24:34,560 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:24:34,560 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:24:34,560 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:24:34,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:24:34,561 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:24:34,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:24:34,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:24:34,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:24:34,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:24:34,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:24:34,561 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:24:34,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:24:34,562 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:24:34,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:24:34,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:24:34,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:24:34,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:24:34,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:24:34,563 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:24:34,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:24:34,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:24:34,563 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:24:34,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:24:34,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:24:34,563 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:24:34,563 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_3d4b4531-8b8e-4c0b-99a2-07689d81a491/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc2bcff0042736d227f789c1cd907dd165725deef10fad1d3e8a6f5d799859cf [2022-12-14 05:24:34,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:24:34,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:24:34,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:24:34,744 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:24:34,745 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:24:34,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_11_good.i [2022-12-14 05:24:37,368 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:24:37,609 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:24:37,609 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_11_good.i [2022-12-14 05:24:37,625 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/data/9e5100ff8/08814d499254430aa8d010095c5f3ab8/FLAGf084c9fca [2022-12-14 05:24:37,635 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/data/9e5100ff8/08814d499254430aa8d010095c5f3ab8 [2022-12-14 05:24:37,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:24:37,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:24:37,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:24:37,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:24:37,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:24:37,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:24:37" (1/1) ... [2022-12-14 05:24:37,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9d56cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:24:37, skipping insertion in model container [2022-12-14 05:24:37,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:24:37" (1/1) ... [2022-12-14 05:24:37,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:24:37,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:24:37,978 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:24:38,323 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:24:38,329 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:24:38,331 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:24:38,333 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:24:38,334 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:24:38,369 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:24:38,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:24:38,380 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:24:38,399 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:24:38,440 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:24:38,442 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:24:38,443 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:24:38,445 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:24:38,446 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:24:38,455 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:24:38,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:24:38,599 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:24:38,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:24:38 WrapperNode [2022-12-14 05:24:38,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:24:38,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:24:38,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:24:38,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:24:38,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:24:38" (1/1) ... [2022-12-14 05:24:38,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:24:38" (1/1) ... [2022-12-14 05:24:38,649 INFO L138 Inliner]: procedures = 503, calls = 77, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 149 [2022-12-14 05:24:38,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:24:38,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:24:38,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:24:38,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:24:38,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:24:38" (1/1) ... [2022-12-14 05:24:38,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:24:38" (1/1) ... [2022-12-14 05:24:38,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:24:38" (1/1) ... [2022-12-14 05:24:38,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:24:38" (1/1) ... [2022-12-14 05:24:38,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:24:38" (1/1) ... [2022-12-14 05:24:38,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:24:38" (1/1) ... [2022-12-14 05:24:38,672 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:24:38" (1/1) ... [2022-12-14 05:24:38,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:24:38" (1/1) ... [2022-12-14 05:24:38,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:24:38,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:24:38,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:24:38,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:24:38,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:24:38" (1/1) ... [2022-12-14 05:24:38,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:24:38,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:24:38,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:24:38,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:24:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 05:24:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 05:24:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 05:24:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 05:24:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-12-14 05:24:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-12-14 05:24:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:24:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:24:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:24:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsFalse [2022-12-14 05:24:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsFalse [2022-12-14 05:24:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 05:24:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:24:38,845 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:24:38,847 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:24:39,047 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:24:39,139 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:24:39,139 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:24:39,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:24:39 BoogieIcfgContainer [2022-12-14 05:24:39,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:24:39,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:24:39,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:24:39,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:24:39,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:24:37" (1/3) ... [2022-12-14 05:24:39,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1c39ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:24:39, skipping insertion in model container [2022-12-14 05:24:39,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:24:38" (2/3) ... [2022-12-14 05:24:39,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1c39ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:24:39, skipping insertion in model container [2022-12-14 05:24:39,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:24:39" (3/3) ... [2022-12-14 05:24:39,151 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_11_good.i [2022-12-14 05:24:39,169 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:24:39,170 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 05:24:39,216 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:24:39,223 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;@54f18fca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:24:39,223 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 05:24:39,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 38 states have (on average 1.5) internal successors, (57), 54 states have internal predecessors, (57), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-14 05:24:39,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 05:24:39,236 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:24:39,237 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 05:24:39,237 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 05:24:39,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:24:39,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1336479705, now seen corresponding path program 1 times [2022-12-14 05:24:39,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:24:39,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063420639] [2022-12-14 05:24:39,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:39,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:24:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:39,535 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 05:24:39,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:24:39,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063420639] [2022-12-14 05:24:39,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063420639] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:24:39,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:24:39,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:24:39,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360425239] [2022-12-14 05:24:39,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:24:39,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:24:39,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:24:39,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:24:39,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:24:39,572 INFO L87 Difference]: Start difference. First operand has 69 states, 38 states have (on average 1.5) internal successors, (57), 54 states have internal predecessors, (57), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:24:39,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:24:39,646 INFO L93 Difference]: Finished difference Result 113 states and 156 transitions. [2022-12-14 05:24:39,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:24:39,648 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2022-12-14 05:24:39,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:24:39,658 INFO L225 Difference]: With dead ends: 113 [2022-12-14 05:24:39,658 INFO L226 Difference]: Without dead ends: 102 [2022-12-14 05:24:39,661 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 05:24:39,664 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 42 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:24:39,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 163 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:24:39,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-12-14 05:24:39,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 63. [2022-12-14 05:24:39,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 49 states have internal predecessors, (51), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:24:39,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 83 transitions. [2022-12-14 05:24:39,713 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 83 transitions. Word has length 17 [2022-12-14 05:24:39,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:24:39,713 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 83 transitions. [2022-12-14 05:24:39,714 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:24:39,714 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 83 transitions. [2022-12-14 05:24:39,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 05:24:39,715 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:24:39,715 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 05:24:39,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:24:39,716 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:24:39,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:24:39,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1518802026, now seen corresponding path program 1 times [2022-12-14 05:24:39,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:24:39,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784916635] [2022-12-14 05:24:39,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:39,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:24:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:39,791 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 05:24:39,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:24:39,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784916635] [2022-12-14 05:24:39,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784916635] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:24:39,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:24:39,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:24:39,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428678580] [2022-12-14 05:24:39,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:24:39,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:24:39,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:24:39,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:24:39,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:24:39,794 INFO L87 Difference]: Start difference. First operand 63 states and 83 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:24:39,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:24:39,835 INFO L93 Difference]: Finished difference Result 102 states and 137 transitions. [2022-12-14 05:24:39,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:24:39,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2022-12-14 05:24:39,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:24:39,838 INFO L225 Difference]: With dead ends: 102 [2022-12-14 05:24:39,838 INFO L226 Difference]: Without dead ends: 101 [2022-12-14 05:24:39,838 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 05:24:39,839 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 36 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:24:39,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 181 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:24:39,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-12-14 05:24:39,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 62. [2022-12-14 05:24:39,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 48 states have internal predecessors, (50), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:24:39,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2022-12-14 05:24:39,852 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 18 [2022-12-14 05:24:39,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:24:39,852 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2022-12-14 05:24:39,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:24:39,853 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2022-12-14 05:24:39,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 05:24:39,854 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:24:39,854 INFO L195 NwaCegarLoop]: trace histogram [3, 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 05:24:39,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:24:39,854 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:24:39,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:24:39,855 INFO L85 PathProgramCache]: Analyzing trace with hash 741706850, now seen corresponding path program 1 times [2022-12-14 05:24:39,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:24:39,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922130514] [2022-12-14 05:24:39,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:39,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:24:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:39,951 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 05:24:39,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:24:39,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922130514] [2022-12-14 05:24:39,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922130514] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:24:39,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:24:39,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:24:39,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916774542] [2022-12-14 05:24:39,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:24:39,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:24:39,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:24:39,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:24:39,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:24:39,953 INFO L87 Difference]: Start difference. First operand 62 states and 82 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 05:24:39,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:24:39,992 INFO L93 Difference]: Finished difference Result 87 states and 115 transitions. [2022-12-14 05:24:39,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:24:39,992 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 28 [2022-12-14 05:24:39,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:24:39,993 INFO L225 Difference]: With dead ends: 87 [2022-12-14 05:24:39,993 INFO L226 Difference]: Without dead ends: 86 [2022-12-14 05:24:39,994 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 05:24:39,995 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 24 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:24:39,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 157 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:24:39,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-12-14 05:24:40,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 61. [2022-12-14 05:24:40,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 47 states have internal predecessors, (49), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:24:40,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 81 transitions. [2022-12-14 05:24:40,004 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 81 transitions. Word has length 28 [2022-12-14 05:24:40,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:24:40,005 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 81 transitions. [2022-12-14 05:24:40,005 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 05:24:40,005 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2022-12-14 05:24:40,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 05:24:40,006 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:24:40,006 INFO L195 NwaCegarLoop]: trace histogram [3, 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 05:24:40,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:24:40,006 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:24:40,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:24:40,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1518075988, now seen corresponding path program 1 times [2022-12-14 05:24:40,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:24:40,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474940325] [2022-12-14 05:24:40,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:40,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:24:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:40,062 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 05:24:40,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:24:40,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474940325] [2022-12-14 05:24:40,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474940325] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:24:40,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:24:40,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:24:40,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558615711] [2022-12-14 05:24:40,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:24:40,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:24:40,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:24:40,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:24:40,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:24:40,065 INFO L87 Difference]: Start difference. First operand 61 states and 81 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 05:24:40,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:24:40,098 INFO L93 Difference]: Finished difference Result 86 states and 114 transitions. [2022-12-14 05:24:40,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:24:40,098 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 29 [2022-12-14 05:24:40,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:24:40,100 INFO L225 Difference]: With dead ends: 86 [2022-12-14 05:24:40,100 INFO L226 Difference]: Without dead ends: 85 [2022-12-14 05:24:40,100 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 05:24:40,102 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 23 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:24:40,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 169 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:24:40,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-12-14 05:24:40,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 60. [2022-12-14 05:24:40,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 46 states have internal predecessors, (48), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:24:40,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 80 transitions. [2022-12-14 05:24:40,107 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 80 transitions. Word has length 29 [2022-12-14 05:24:40,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:24:40,108 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 80 transitions. [2022-12-14 05:24:40,108 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 05:24:40,108 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2022-12-14 05:24:40,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 05:24:40,109 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:24:40,110 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:24:40,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 05:24:40,110 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:24:40,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:24:40,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1674684715, now seen corresponding path program 1 times [2022-12-14 05:24:40,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:24:40,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812240978] [2022-12-14 05:24:40,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:40,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:24:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:40,201 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 05:24:40,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:24:40,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812240978] [2022-12-14 05:24:40,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812240978] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:24:40,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139682446] [2022-12-14 05:24:40,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:40,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:24:40,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:24:40,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:24:40,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:24:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:40,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 05:24:40,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:24:40,340 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:24:40,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:24:40,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139682446] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:24:40,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:24:40,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 05:24:40,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643969983] [2022-12-14 05:24:40,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:24:40,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:24:40,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:24:40,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:24:40,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:24:40,342 INFO L87 Difference]: Start difference. First operand 60 states and 80 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 05:24:40,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:24:40,370 INFO L93 Difference]: Finished difference Result 60 states and 80 transitions. [2022-12-14 05:24:40,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:24:40,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2022-12-14 05:24:40,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:24:40,372 INFO L225 Difference]: With dead ends: 60 [2022-12-14 05:24:40,372 INFO L226 Difference]: Without dead ends: 59 [2022-12-14 05:24:40,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:24:40,372 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 15 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:24:40,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 112 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:24:40,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-12-14 05:24:40,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-12-14 05:24:40,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 45 states have internal predecessors, (47), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:24:40,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 79 transitions. [2022-12-14 05:24:40,378 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 79 transitions. Word has length 38 [2022-12-14 05:24:40,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:24:40,378 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 79 transitions. [2022-12-14 05:24:40,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 05:24:40,379 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 79 transitions. [2022-12-14 05:24:40,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 05:24:40,379 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:24:40,379 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:24:40,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:24:40,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:24:40,580 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:24:40,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:24:40,581 INFO L85 PathProgramCache]: Analyzing trace with hash 375618764, now seen corresponding path program 1 times [2022-12-14 05:24:40,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:24:40,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370948564] [2022-12-14 05:24:40,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:40,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:24:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:40,679 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 05:24:40,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:24:40,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370948564] [2022-12-14 05:24:40,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370948564] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:24:40,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164700083] [2022-12-14 05:24:40,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:40,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:24:40,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:24:40,681 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:24:40,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:24:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:40,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 05:24:40,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:24:40,782 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:24:40,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:24:40,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164700083] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:24:40,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:24:40,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 05:24:40,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814310685] [2022-12-14 05:24:40,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:24:40,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:24:40,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:24:40,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:24:40,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:24:40,784 INFO L87 Difference]: Start difference. First operand 59 states and 79 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 05:24:40,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:24:40,818 INFO L93 Difference]: Finished difference Result 91 states and 116 transitions. [2022-12-14 05:24:40,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:24:40,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 39 [2022-12-14 05:24:40,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:24:40,820 INFO L225 Difference]: With dead ends: 91 [2022-12-14 05:24:40,820 INFO L226 Difference]: Without dead ends: 77 [2022-12-14 05:24:40,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:24:40,821 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 10 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:24:40,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 136 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:24:40,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-14 05:24:40,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 65. [2022-12-14 05:24:40,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 49 states have internal predecessors, (53), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 05:24:40,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 87 transitions. [2022-12-14 05:24:40,829 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 87 transitions. Word has length 39 [2022-12-14 05:24:40,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:24:40,830 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 87 transitions. [2022-12-14 05:24:40,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 05:24:40,830 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 87 transitions. [2022-12-14 05:24:40,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 05:24:40,831 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:24:40,831 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:24:40,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:24:41,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 05:24:41,032 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 05:24:41,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:24:41,033 INFO L85 PathProgramCache]: Analyzing trace with hash -359142436, now seen corresponding path program 1 times [2022-12-14 05:24:41,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:24:41,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70871936] [2022-12-14 05:24:41,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:41,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:24:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:41,099 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 05:24:41,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:24:41,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70871936] [2022-12-14 05:24:41,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70871936] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:24:41,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238445966] [2022-12-14 05:24:41,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:41,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:24:41,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:24:41,101 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:24:41,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:24:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:41,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 05:24:41,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:24:41,209 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 05:24:41,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:24:41,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238445966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:24:41,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:24:41,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 05:24:41,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834143527] [2022-12-14 05:24:41,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:24:41,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:24:41,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:24:41,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:24:41,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:24:41,210 INFO L87 Difference]: Start difference. First operand 65 states and 87 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 05:24:41,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:24:41,235 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2022-12-14 05:24:41,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:24:41,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 42 [2022-12-14 05:24:41,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:24:41,236 INFO L225 Difference]: With dead ends: 92 [2022-12-14 05:24:41,236 INFO L226 Difference]: Without dead ends: 73 [2022-12-14 05:24:41,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:24:41,236 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 10 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 148 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 05:24:41,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 148 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:24:41,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-12-14 05:24:41,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 62. [2022-12-14 05:24:41,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 46 states have internal predecessors, (49), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 05:24:41,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 83 transitions. [2022-12-14 05:24:41,242 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 83 transitions. Word has length 42 [2022-12-14 05:24:41,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:24:41,242 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 83 transitions. [2022-12-14 05:24:41,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 05:24:41,242 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2022-12-14 05:24:41,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 05:24:41,243 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:24:41,243 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:24:41,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 05:24:41,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:24:41,445 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 05:24:41,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:24:41,446 INFO L85 PathProgramCache]: Analyzing trace with hash 872211837, now seen corresponding path program 1 times [2022-12-14 05:24:41,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:24:41,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686227286] [2022-12-14 05:24:41,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:41,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:24:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:41,570 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 05:24:41,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:24:41,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686227286] [2022-12-14 05:24:41,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686227286] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:24:41,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735264703] [2022-12-14 05:24:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:41,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:24:41,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:24:41,572 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:24:41,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 05:24:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:41,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:24:41,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:24:41,675 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 05:24:41,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:24:41,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735264703] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:24:41,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:24:41,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-14 05:24:41,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038058427] [2022-12-14 05:24:41,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:24:41,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:24:41,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:24:41,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:24:41,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:24:41,677 INFO L87 Difference]: Start difference. First operand 62 states and 83 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:24:41,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:24:41,712 INFO L93 Difference]: Finished difference Result 97 states and 123 transitions. [2022-12-14 05:24:41,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:24:41,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 48 [2022-12-14 05:24:41,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:24:41,714 INFO L225 Difference]: With dead ends: 97 [2022-12-14 05:24:41,714 INFO L226 Difference]: Without dead ends: 62 [2022-12-14 05:24:41,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:24:41,715 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:24:41,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 193 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:24:41,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-14 05:24:41,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-12-14 05:24:41,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 46 states have internal predecessors, (48), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 05:24:41,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2022-12-14 05:24:41,719 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 48 [2022-12-14 05:24:41,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:24:41,720 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2022-12-14 05:24:41,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:24:41,720 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2022-12-14 05:24:41,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-14 05:24:41,720 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:24:41,721 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:24:41,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 05:24:41,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:24:41,921 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:24:41,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:24:41,922 INFO L85 PathProgramCache]: Analyzing trace with hash 893937458, now seen corresponding path program 1 times [2022-12-14 05:24:41,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:24:41,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496758452] [2022-12-14 05:24:41,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:41,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:24:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:42,000 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 05:24:42,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:24:42,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496758452] [2022-12-14 05:24:42,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496758452] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:24:42,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241445418] [2022-12-14 05:24:42,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:42,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:24:42,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:24:42,002 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:24:42,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 05:24:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:42,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:24:42,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:24:42,101 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 05:24:42,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:24:42,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241445418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:24:42,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:24:42,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-14 05:24:42,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630429368] [2022-12-14 05:24:42,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:24:42,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:24:42,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:24:42,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:24:42,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:24:42,102 INFO L87 Difference]: Start difference. First operand 62 states and 82 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:24:42,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:24:42,133 INFO L93 Difference]: Finished difference Result 75 states and 95 transitions. [2022-12-14 05:24:42,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:24:42,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 49 [2022-12-14 05:24:42,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:24:42,135 INFO L225 Difference]: With dead ends: 75 [2022-12-14 05:24:42,135 INFO L226 Difference]: Without dead ends: 62 [2022-12-14 05:24:42,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:24:42,136 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:24:42,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 190 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:24:42,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-14 05:24:42,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-12-14 05:24:42,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 46 states have internal predecessors, (46), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 05:24:42,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2022-12-14 05:24:42,143 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 49 [2022-12-14 05:24:42,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:24:42,144 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2022-12-14 05:24:42,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:24:42,144 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2022-12-14 05:24:42,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-14 05:24:42,145 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:24:42,145 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:24:42,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 05:24:42,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:24:42,347 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:24:42,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:24:42,348 INFO L85 PathProgramCache]: Analyzing trace with hash 450037469, now seen corresponding path program 1 times [2022-12-14 05:24:42,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:24:42,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775117070] [2022-12-14 05:24:42,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:42,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:24:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:42,527 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-14 05:24:42,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:24:42,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775117070] [2022-12-14 05:24:42,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775117070] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:24:42,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:24:42,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:24:42,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582921229] [2022-12-14 05:24:42,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:24:42,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:24:42,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:24:42,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:24:42,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:24:42,529 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 05:24:42,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:24:42,559 INFO L93 Difference]: Finished difference Result 77 states and 94 transitions. [2022-12-14 05:24:42,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:24:42,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2022-12-14 05:24:42,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:24:42,560 INFO L225 Difference]: With dead ends: 77 [2022-12-14 05:24:42,560 INFO L226 Difference]: Without dead ends: 57 [2022-12-14 05:24:42,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:24:42,561 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:24:42,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 182 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:24:42,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-12-14 05:24:42,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-12-14 05:24:42,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 42 states have internal predecessors, (42), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 05:24:42,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2022-12-14 05:24:42,565 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 53 [2022-12-14 05:24:42,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:24:42,565 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2022-12-14 05:24:42,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 05:24:42,565 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2022-12-14 05:24:42,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-14 05:24:42,566 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:24:42,566 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:24:42,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 05:24:42,566 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:24:42,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:24:42,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1889084389, now seen corresponding path program 1 times [2022-12-14 05:24:42,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:24:42,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983988759] [2022-12-14 05:24:42,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:42,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:24:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:42,658 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 05:24:42,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:24:42,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983988759] [2022-12-14 05:24:42,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983988759] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:24:42,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817635745] [2022-12-14 05:24:42,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:42,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:24:42,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:24:42,660 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:24:42,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 05:24:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:42,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:24:42,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:24:42,776 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 05:24:42,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:24:42,861 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 05:24:42,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817635745] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:24:42,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [251950789] [2022-12-14 05:24:42,880 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2022-12-14 05:24:42,880 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:24:42,884 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:24:42,889 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:24:42,889 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:24:45,401 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsTrue with input of size 99 for LOIs [2022-12-14 05:24:45,413 INFO L197 IcfgInterpreter]: Interpreting procedure printIntLine with input of size 32 for LOIs [2022-12-14 05:24:45,415 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsFalse with input of size 99 for LOIs [2022-12-14 05:24:45,425 INFO L197 IcfgInterpreter]: Interpreting procedure printLine with input of size 77 for LOIs [2022-12-14 05:24:45,430 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:24:52,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [251950789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:24:52,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:24:52,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 37 [2022-12-14 05:24:52,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887556352] [2022-12-14 05:24:52,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:24:52,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 05:24:52,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:24:52,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 05:24:52,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1217, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 05:24:52,330 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 30 states, 20 states have (on average 1.45) internal successors, (29), 23 states have internal predecessors, (29), 10 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 05:24:58,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:24:58,826 INFO L93 Difference]: Finished difference Result 157 states and 192 transitions. [2022-12-14 05:24:58,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-14 05:24:58,827 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 20 states have (on average 1.45) internal successors, (29), 23 states have internal predecessors, (29), 10 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 55 [2022-12-14 05:24:58,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:24:58,828 INFO L225 Difference]: With dead ends: 157 [2022-12-14 05:24:58,828 INFO L226 Difference]: Without dead ends: 92 [2022-12-14 05:24:58,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 126 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=347, Invalid=2005, Unknown=0, NotChecked=0, Total=2352 [2022-12-14 05:24:58,830 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 124 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:24:58,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 231 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 05:24:58,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-12-14 05:24:58,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 65. [2022-12-14 05:24:58,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.119047619047619) internal successors, (47), 46 states have internal predecessors, (47), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:24:58,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 79 transitions. [2022-12-14 05:24:58,849 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 79 transitions. Word has length 55 [2022-12-14 05:24:58,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:24:58,849 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 79 transitions. [2022-12-14 05:24:58,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 20 states have (on average 1.45) internal successors, (29), 23 states have internal predecessors, (29), 10 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 05:24:58,849 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 79 transitions. [2022-12-14 05:24:58,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 05:24:58,850 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:24:58,850 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:24:58,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 05:24:59,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 05:24:59,052 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:24:59,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:24:59,053 INFO L85 PathProgramCache]: Analyzing trace with hash 345599375, now seen corresponding path program 1 times [2022-12-14 05:24:59,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:24:59,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202730784] [2022-12-14 05:24:59,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:59,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:24:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:59,143 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:24:59,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:24:59,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202730784] [2022-12-14 05:24:59,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202730784] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:24:59,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919038564] [2022-12-14 05:24:59,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:59,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:24:59,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:24:59,145 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:24:59,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 05:24:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:59,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:24:59,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:24:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:24:59,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:24:59,325 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:24:59,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919038564] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:24:59,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1094808107] [2022-12-14 05:24:59,328 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-12-14 05:24:59,328 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:24:59,329 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:24:59,329 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:24:59,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:25:01,261 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsTrue with input of size 99 for LOIs [2022-12-14 05:25:01,272 INFO L197 IcfgInterpreter]: Interpreting procedure printIntLine with input of size 32 for LOIs [2022-12-14 05:25:01,274 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsFalse with input of size 99 for LOIs [2022-12-14 05:25:01,283 INFO L197 IcfgInterpreter]: Interpreting procedure printLine with input of size 113 for LOIs [2022-12-14 05:25:01,302 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:25:29,074 WARN L233 SmtUtils]: Spent 24.39s on a formula simplification. DAG size of input: 207 DAG size of output: 151 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:25:32,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1094808107] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:25:32,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:25:32,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 38 [2022-12-14 05:25:32,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922771912] [2022-12-14 05:25:32,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:25:32,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-14 05:25:32,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:25:32,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-14 05:25:32,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1281, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 05:25:32,590 INFO L87 Difference]: Start difference. First operand 65 states and 79 transitions. Second operand has 31 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 24 states have internal predecessors, (30), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:25:43,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:25:43,040 INFO L93 Difference]: Finished difference Result 118 states and 141 transitions. [2022-12-14 05:25:43,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 05:25:43,041 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 24 states have internal predecessors, (30), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 59 [2022-12-14 05:25:43,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:25:43,041 INFO L225 Difference]: With dead ends: 118 [2022-12-14 05:25:43,041 INFO L226 Difference]: Without dead ends: 93 [2022-12-14 05:25:43,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 137 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 694 ImplicationChecksByTransitivity, 38.4s TimeCoverageRelationStatistics Valid=386, Invalid=2164, Unknown=0, NotChecked=0, Total=2550 [2022-12-14 05:25:43,043 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 162 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:25:43,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 187 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 05:25:43,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-12-14 05:25:43,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 68. [2022-12-14 05:25:43,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 48 states have internal predecessors, (49), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:25:43,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 81 transitions. [2022-12-14 05:25:43,062 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 81 transitions. Word has length 59 [2022-12-14 05:25:43,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:25:43,062 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 81 transitions. [2022-12-14 05:25:43,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 24 states have internal predecessors, (30), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:25:43,063 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 81 transitions. [2022-12-14 05:25:43,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 05:25:43,063 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:25:43,063 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:25:43,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 05:25:43,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 05:25:43,266 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:25:43,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:25:43,267 INFO L85 PathProgramCache]: Analyzing trace with hash -678638350, now seen corresponding path program 1 times [2022-12-14 05:25:43,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:25:43,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459417339] [2022-12-14 05:25:43,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:25:43,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:25:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:25:43,354 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:25:43,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:25:43,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459417339] [2022-12-14 05:25:43,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459417339] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:25:43,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640879797] [2022-12-14 05:25:43,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:25:43,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:25:43,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:25:43,355 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:25:43,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 05:25:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:25:43,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:25:43,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:25:43,463 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:25:43,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:25:43,521 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:25:43,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640879797] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:25:43,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [161801969] [2022-12-14 05:25:43,524 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-12-14 05:25:43,524 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:25:43,525 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:25:43,525 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:25:43,525 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:25:45,795 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsTrue with input of size 99 for LOIs [2022-12-14 05:25:45,804 INFO L197 IcfgInterpreter]: Interpreting procedure printIntLine with input of size 32 for LOIs [2022-12-14 05:25:45,806 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsFalse with input of size 99 for LOIs [2022-12-14 05:25:45,815 INFO L197 IcfgInterpreter]: Interpreting procedure printLine with input of size 113 for LOIs [2022-12-14 05:25:45,837 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:27:01,165 WARN L233 SmtUtils]: Spent 1.18m on a formula simplification. DAG size of input: 213 DAG size of output: 144 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:27:05,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [161801969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:27:05,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:27:05,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 38 [2022-12-14 05:27:05,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493589848] [2022-12-14 05:27:05,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:27:05,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-14 05:27:05,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:27:05,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-14 05:27:05,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1288, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 05:27:05,450 INFO L87 Difference]: Start difference. First operand 68 states and 81 transitions. Second operand has 31 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 24 states have internal predecessors, (30), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:27:14,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:27:14,380 INFO L93 Difference]: Finished difference Result 151 states and 182 transitions. [2022-12-14 05:27:14,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 05:27:14,381 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 24 states have internal predecessors, (30), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 59 [2022-12-14 05:27:14,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:27:14,382 INFO L225 Difference]: With dead ends: 151 [2022-12-14 05:27:14,382 INFO L226 Difference]: Without dead ends: 127 [2022-12-14 05:27:14,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 136 SyntacticMatches, 6 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 85.0s TimeCoverageRelationStatistics Valid=363, Invalid=2087, Unknown=0, NotChecked=0, Total=2450 [2022-12-14 05:27:14,383 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 143 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 05:27:14,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 353 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 05:27:14,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-12-14 05:27:14,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 75. [2022-12-14 05:27:14,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 52 states have internal predecessors, (54), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-14 05:27:14,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2022-12-14 05:27:14,404 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 59 [2022-12-14 05:27:14,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:27:14,404 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2022-12-14 05:27:14,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 24 states have internal predecessors, (30), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:27:14,405 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2022-12-14 05:27:14,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 05:27:14,405 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:27:14,406 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:27:14,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 05:27:14,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 05:27:14,608 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:27:14,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:27:14,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1128557190, now seen corresponding path program 1 times [2022-12-14 05:27:14,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:27:14,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912999599] [2022-12-14 05:27:14,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:27:14,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:27:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:27:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:27:14,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:27:14,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912999599] [2022-12-14 05:27:14,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912999599] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:27:14,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499440122] [2022-12-14 05:27:14,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:27:14,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:27:14,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:27:14,718 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:27:14,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 05:27:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:27:14,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:27:14,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:27:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:27:14,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:27:14,902 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:27:14,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499440122] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:27:14,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1212136469] [2022-12-14 05:27:14,905 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2022-12-14 05:27:14,905 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:27:14,905 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:27:14,906 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:27:14,906 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:27:16,739 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsTrue with input of size 99 for LOIs [2022-12-14 05:27:16,749 INFO L197 IcfgInterpreter]: Interpreting procedure printIntLine with input of size 78 for LOIs [2022-12-14 05:27:16,761 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsFalse with input of size 99 for LOIs [2022-12-14 05:27:16,770 INFO L197 IcfgInterpreter]: Interpreting procedure printLine with input of size 77 for LOIs [2022-12-14 05:27:16,776 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:28:18,215 WARN L233 SmtUtils]: Spent 58.21s on a formula simplification. DAG size of input: 207 DAG size of output: 139 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:28:22,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1212136469] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:28:22,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:28:22,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [4, 4, 4] total 39 [2022-12-14 05:28:22,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309377737] [2022-12-14 05:28:22,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:28:22,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-14 05:28:22,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:28:22,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-14 05:28:22,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1344, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 05:28:22,969 INFO L87 Difference]: Start difference. First operand 75 states and 90 transitions. Second operand has 32 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 25 states have internal predecessors, (32), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:28:31,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:28:31,335 INFO L93 Difference]: Finished difference Result 102 states and 121 transitions. [2022-12-14 05:28:31,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 05:28:31,335 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 25 states have internal predecessors, (32), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 61 [2022-12-14 05:28:31,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:28:31,336 INFO L225 Difference]: With dead ends: 102 [2022-12-14 05:28:31,336 INFO L226 Difference]: Without dead ends: 67 [2022-12-14 05:28:31,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 140 SyntacticMatches, 7 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 71.6s TimeCoverageRelationStatistics Valid=432, Invalid=2324, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 05:28:31,337 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 85 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:28:31,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 267 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 05:28:31,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-12-14 05:28:31,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-12-14 05:28:31,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 43 states have (on average 1.0930232558139534) internal successors, (47), 46 states have internal predecessors, (47), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:28:31,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 79 transitions. [2022-12-14 05:28:31,356 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 79 transitions. Word has length 61 [2022-12-14 05:28:31,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:28:31,356 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 79 transitions. [2022-12-14 05:28:31,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 25 states have internal predecessors, (32), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:28:31,357 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2022-12-14 05:28:31,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 05:28:31,357 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:28:31,357 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:28:31,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-14 05:28:31,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 05:28:31,559 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:28:31,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:28:31,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1564614907, now seen corresponding path program 1 times [2022-12-14 05:28:31,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:28:31,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824911452] [2022-12-14 05:28:31,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:28:31,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:28:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:28:31,652 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:28:31,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:28:31,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824911452] [2022-12-14 05:28:31,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824911452] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:28:31,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073022692] [2022-12-14 05:28:31,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:28:31,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:28:31,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:28:31,654 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:28:31,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 05:28:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:28:31,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:28:31,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:28:31,764 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:28:31,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:28:31,823 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:28:31,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073022692] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:28:31,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [309093508] [2022-12-14 05:28:31,825 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2022-12-14 05:28:31,826 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:28:31,826 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:28:31,826 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:28:31,826 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:28:34,655 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsTrue with input of size 99 for LOIs [2022-12-14 05:28:34,664 INFO L197 IcfgInterpreter]: Interpreting procedure printIntLine with input of size 28 for LOIs [2022-12-14 05:28:34,666 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsFalse with input of size 99 for LOIs [2022-12-14 05:28:34,675 INFO L197 IcfgInterpreter]: Interpreting procedure printLine with input of size 77 for LOIs [2022-12-14 05:28:34,681 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:29:49,720 WARN L233 SmtUtils]: Spent 1.15m on a formula simplification. DAG size of input: 204 DAG size of output: 139 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:31:02,584 WARN L233 SmtUtils]: Spent 1.17m on a formula simplification. DAG size of input: 206 DAG size of output: 94 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:32:17,686 WARN L233 SmtUtils]: Spent 1.18m on a formula simplification. DAG size of input: 213 DAG size of output: 97 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:32:29,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [309093508] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:32:29,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:32:29,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 38 [2022-12-14 05:32:29,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264839136] [2022-12-14 05:32:29,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:32:29,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-14 05:32:29,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:32:29,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-14 05:32:29,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1282, Unknown=5, NotChecked=0, Total=1482 [2022-12-14 05:32:29,303 INFO L87 Difference]: Start difference. First operand 67 states and 79 transitions. Second operand has 31 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 25 states have internal predecessors, (32), 11 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:32:30,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:32:54,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:33:03,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:33:05,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:33:07,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:33:44,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:33:47,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:33:54,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:33:56,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:34:00,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:34:02,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:34:04,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:34:16,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:34:25,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:34:27,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:34:29,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:34:31,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:34:37,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:34:39,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:34:46,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:34:48,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:34:50,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:35:07,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:35:13,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:35:15,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:35:32,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:35:40,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:35:42,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:35:44,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:35:46,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:35:48,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:35:48,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:35:48,834 INFO L93 Difference]: Finished difference Result 116 states and 139 transitions. [2022-12-14 05:35:48,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-14 05:35:48,835 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 25 states have internal predecessors, (32), 11 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 61 [2022-12-14 05:35:48,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:35:48,836 INFO L225 Difference]: With dead ends: 116 [2022-12-14 05:35:48,836 INFO L226 Difference]: Without dead ends: 94 [2022-12-14 05:35:48,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 141 SyntacticMatches, 7 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 370.0s TimeCoverageRelationStatistics Valid=505, Invalid=2657, Unknown=30, NotChecked=0, Total=3192 [2022-12-14 05:35:48,837 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 182 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 82 mSolverCounterUnsat, 29 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 29 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:35:48,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 282 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1200 Invalid, 29 Unknown, 0 Unchecked, 64.0s Time] [2022-12-14 05:35:48,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-12-14 05:35:48,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 60. [2022-12-14 05:35:48,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 41 states have internal predecessors, (41), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 05:35:48,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2022-12-14 05:35:48,858 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 61 [2022-12-14 05:35:48,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:35:48,858 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2022-12-14 05:35:48,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 25 states have internal predecessors, (32), 11 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:35:48,858 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2022-12-14 05:35:48,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 05:35:48,859 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:35:48,859 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:35:48,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 05:35:49,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-14 05:35:49,060 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:35:49,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:35:49,061 INFO L85 PathProgramCache]: Analyzing trace with hash 407357468, now seen corresponding path program 1 times [2022-12-14 05:35:49,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:35:49,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756691180] [2022-12-14 05:35:49,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:35:49,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:35:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:35:49,164 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-14 05:35:49,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:35:49,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756691180] [2022-12-14 05:35:49,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756691180] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:35:49,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327438408] [2022-12-14 05:35:49,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:35:49,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:35:49,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:35:49,165 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:35:49,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 05:35:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:35:49,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:35:49,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:35:49,279 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-14 05:35:49,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:35:49,332 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-14 05:35:49,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327438408] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:35:49,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [316243642] [2022-12-14 05:35:49,334 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2022-12-14 05:35:49,334 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:35:49,335 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:35:49,335 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:35:49,335 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:35:51,684 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsTrue with input of size 99 for LOIs [2022-12-14 05:35:51,694 INFO L197 IcfgInterpreter]: Interpreting procedure printIntLine with input of size 32 for LOIs [2022-12-14 05:35:51,695 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsFalse with input of size 99 for LOIs [2022-12-14 05:35:51,704 INFO L197 IcfgInterpreter]: Interpreting procedure printLine with input of size 35 for LOIs [2022-12-14 05:35:51,707 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:35:58,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [316243642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:35:58,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:35:58,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [4, 4, 4] total 39 [2022-12-14 05:35:58,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159024422] [2022-12-14 05:35:58,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:35:58,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-14 05:35:58,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:35:58,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-14 05:35:58,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=1354, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 05:35:58,234 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 32 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 25 states have internal predecessors, (31), 12 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 05:36:10,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:36:10,430 INFO L93 Difference]: Finished difference Result 118 states and 139 transitions. [2022-12-14 05:36:10,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 05:36:10,430 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 25 states have internal predecessors, (31), 12 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 63 [2022-12-14 05:36:10,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:36:10,431 INFO L225 Difference]: With dead ends: 118 [2022-12-14 05:36:10,431 INFO L226 Difference]: Without dead ends: 93 [2022-12-14 05:36:10,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 147 SyntacticMatches, 6 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=403, Invalid=2249, Unknown=0, NotChecked=0, Total=2652 [2022-12-14 05:36:10,432 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 127 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:36:10,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 331 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 05:36:10,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-12-14 05:36:10,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 68. [2022-12-14 05:36:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 46 states have internal predecessors, (47), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:36:10,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2022-12-14 05:36:10,458 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 63 [2022-12-14 05:36:10,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:36:10,458 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2022-12-14 05:36:10,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 25 states have internal predecessors, (31), 12 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 05:36:10,458 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2022-12-14 05:36:10,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 05:36:10,459 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:36:10,459 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:36:10,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-14 05:36:10,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-14 05:36:10,660 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:36:10,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:36:10,661 INFO L85 PathProgramCache]: Analyzing trace with hash 348542419, now seen corresponding path program 1 times [2022-12-14 05:36:10,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:36:10,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079233327] [2022-12-14 05:36:10,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:36:10,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:36:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:36:10,762 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-14 05:36:10,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:36:10,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079233327] [2022-12-14 05:36:10,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079233327] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:36:10,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623003071] [2022-12-14 05:36:10,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:36:10,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:36:10,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:36:10,763 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:36:10,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4b4531-8b8e-4c0b-99a2-07689d81a491/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 05:36:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:36:10,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:36:10,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:36:10,876 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-14 05:36:10,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:36:10,928 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-14 05:36:10,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623003071] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:36:10,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [440461031] [2022-12-14 05:36:10,930 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2022-12-14 05:36:10,930 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:36:10,930 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:36:10,930 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:36:10,930 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:36:13,192 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsTrue with input of size 99 for LOIs [2022-12-14 05:36:13,204 INFO L197 IcfgInterpreter]: Interpreting procedure printIntLine with input of size 78 for LOIs [2022-12-14 05:36:13,216 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsFalse with input of size 99 for LOIs [2022-12-14 05:36:13,225 INFO L197 IcfgInterpreter]: Interpreting procedure printLine with input of size 113 for LOIs [2022-12-14 05:36:13,247 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:36:53,825 WARN L233 SmtUtils]: Spent 36.84s on a formula simplification. DAG size of input: 207 DAG size of output: 142 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:37:45,157 WARN L233 SmtUtils]: Spent 50.65s on a formula simplification. DAG size of input: 204 DAG size of output: 140 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:37:55,734 WARN L233 SmtUtils]: Spent 8.41s on a formula simplification. DAG size of input: 205 DAG size of output: 141 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:38:52,536 WARN L233 SmtUtils]: Spent 52.64s on a formula simplification. DAG size of input: 205 DAG size of output: 147 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)