./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/revcpyswp2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/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_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/revcpyswp2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/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 32bit --witnessprinter.graph.data.programhash e5d836305a9654c4a87b407d535438bc329bb78fc0805b3b823600303a7df507 --- 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 06:39:07,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:39:07,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:39:07,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:39:07,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:39:07,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:39:07,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:39:07,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:39:07,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:39:07,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:39:07,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:39:07,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:39:07,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:39:07,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:39:07,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:39:07,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:39:07,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:39:07,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:39:07,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:39:07,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:39:07,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:39:07,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:39:07,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:39:07,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:39:07,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:39:07,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:39:07,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:39:07,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:39:07,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:39:07,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:39:07,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:39:07,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:39:07,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:39:07,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:39:07,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:39:07,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:39:07,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:39:07,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:39:07,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:39:07,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:39:07,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:39:07,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 06:39:07,490 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:39:07,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:39:07,491 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:39:07,491 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:39:07,492 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:39:07,492 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:39:07,492 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:39:07,492 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:39:07,493 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:39:07,493 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:39:07,493 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:39:07,493 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:39:07,493 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:39:07,493 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:39:07,494 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:39:07,494 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:39:07,494 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:39:07,494 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:39:07,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:39:07,495 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:39:07,495 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:39:07,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:39:07,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:39:07,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:39:07,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:39:07,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:39:07,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:39:07,496 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:39:07,497 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:39:07,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:39:07,497 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:39:07,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:39:07,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:39:07,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:39:07,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:39:07,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:39:07,498 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:39:07,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:39:07,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:39:07,499 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:39:07,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:39:07,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:39:07,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:39:07,499 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_412a938a-e7b9-433a-bfc1-0c768e497942/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5d836305a9654c4a87b407d535438bc329bb78fc0805b3b823600303a7df507 [2022-12-14 06:39:07,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:39:07,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:39:07,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:39:07,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:39:07,726 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:39:07,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-tiling/revcpyswp2.c [2022-12-14 06:39:10,323 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:39:10,490 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:39:10,490 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/sv-benchmarks/c/array-tiling/revcpyswp2.c [2022-12-14 06:39:10,496 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/data/8da32679c/f9ff1ee179e94a6aa45c63fb41a0a2df/FLAG556f8e082 [2022-12-14 06:39:10,506 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/data/8da32679c/f9ff1ee179e94a6aa45c63fb41a0a2df [2022-12-14 06:39:10,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:39:10,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:39:10,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:39:10,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:39:10,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:39:10,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:39:10" (1/1) ... [2022-12-14 06:39:10,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fac5389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:10, skipping insertion in model container [2022-12-14 06:39:10,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:39:10" (1/1) ... [2022-12-14 06:39:10,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:39:10,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:39:10,633 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/sv-benchmarks/c/array-tiling/revcpyswp2.c[432,445] [2022-12-14 06:39:10,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:39:10,661 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:39:10,673 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/sv-benchmarks/c/array-tiling/revcpyswp2.c[432,445] [2022-12-14 06:39:10,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:39:10,695 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:39:10,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:10 WrapperNode [2022-12-14 06:39:10,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:39:10,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:39:10,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:39:10,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:39:10,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:10" (1/1) ... [2022-12-14 06:39:10,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:10" (1/1) ... [2022-12-14 06:39:10,731 INFO L138 Inliner]: procedures = 16, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 130 [2022-12-14 06:39:10,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:39:10,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:39:10,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:39:10,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:39:10,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:10" (1/1) ... [2022-12-14 06:39:10,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:10" (1/1) ... [2022-12-14 06:39:10,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:10" (1/1) ... [2022-12-14 06:39:10,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:10" (1/1) ... [2022-12-14 06:39:10,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:10" (1/1) ... [2022-12-14 06:39:10,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:10" (1/1) ... [2022-12-14 06:39:10,753 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:10" (1/1) ... [2022-12-14 06:39:10,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:10" (1/1) ... [2022-12-14 06:39:10,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:39:10,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:39:10,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:39:10,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:39:10,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:10" (1/1) ... [2022-12-14 06:39:10,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:39:10,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:39:10,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:39:10,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:39:10,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:39:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:39:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:39:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:39:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:39:10,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:39:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:39:10,885 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:39:10,887 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:39:11,081 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:39:11,127 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:39:11,127 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-14 06:39:11,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:39:11 BoogieIcfgContainer [2022-12-14 06:39:11,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:39:11,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:39:11,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:39:11,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:39:11,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:39:10" (1/3) ... [2022-12-14 06:39:11,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6632b45d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:39:11, skipping insertion in model container [2022-12-14 06:39:11,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:39:10" (2/3) ... [2022-12-14 06:39:11,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6632b45d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:39:11, skipping insertion in model container [2022-12-14 06:39:11,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:39:11" (3/3) ... [2022-12-14 06:39:11,144 INFO L112 eAbstractionObserver]: Analyzing ICFG revcpyswp2.c [2022-12-14 06:39:11,161 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:39:11,161 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-12-14 06:39:11,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:39:11,207 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;@1e3662e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:39:11,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-14 06:39:11,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 30 states have (on average 1.9333333333333333) internal successors, (58), 52 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:11,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 06:39:11,217 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:11,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 06:39:11,217 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:11,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:11,221 INFO L85 PathProgramCache]: Analyzing trace with hash 5103515, now seen corresponding path program 1 times [2022-12-14 06:39:11,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:11,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791411883] [2022-12-14 06:39:11,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:11,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:11,444 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 06:39:11,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:11,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791411883] [2022-12-14 06:39:11,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791411883] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:39:11,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:39:11,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:39:11,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642944772] [2022-12-14 06:39:11,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:39:11,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:39:11,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:11,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:39:11,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:39:11,475 INFO L87 Difference]: Start difference. First operand has 53 states, 30 states have (on average 1.9333333333333333) internal successors, (58), 52 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:11,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:11,623 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2022-12-14 06:39:11,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:39:11,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 06:39:11,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:11,631 INFO L225 Difference]: With dead ends: 104 [2022-12-14 06:39:11,631 INFO L226 Difference]: Without dead ends: 98 [2022-12-14 06:39:11,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:39:11,636 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 45 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:11,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 54 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:39:11,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-14 06:39:11,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 54. [2022-12-14 06:39:11,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 32 states have (on average 1.84375) internal successors, (59), 53 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2022-12-14 06:39:11,667 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 4 [2022-12-14 06:39:11,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:11,668 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2022-12-14 06:39:11,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:11,668 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2022-12-14 06:39:11,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 06:39:11,669 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:11,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 06:39:11,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:39:11,669 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:11,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:11,670 INFO L85 PathProgramCache]: Analyzing trace with hash 158220994, now seen corresponding path program 1 times [2022-12-14 06:39:11,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:11,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137269196] [2022-12-14 06:39:11,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:11,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:11,749 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 06:39:11,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:11,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137269196] [2022-12-14 06:39:11,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137269196] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:39:11,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:39:11,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:39:11,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426393794] [2022-12-14 06:39:11,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:39:11,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:39:11,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:11,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:39:11,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:39:11,753 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:11,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:11,802 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2022-12-14 06:39:11,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:39:11,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 06:39:11,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:11,804 INFO L225 Difference]: With dead ends: 98 [2022-12-14 06:39:11,804 INFO L226 Difference]: Without dead ends: 54 [2022-12-14 06:39:11,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:39:11,806 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:11,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 60 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:39:11,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-12-14 06:39:11,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-12-14 06:39:11,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 32 states have (on average 1.8125) internal successors, (58), 53 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:11,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2022-12-14 06:39:11,812 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 5 [2022-12-14 06:39:11,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:11,813 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2022-12-14 06:39:11,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:11,813 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2022-12-14 06:39:11,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 06:39:11,813 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:11,814 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-12-14 06:39:11,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:39:11,814 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:11,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:11,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1715012504, now seen corresponding path program 1 times [2022-12-14 06:39:11,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:11,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901765379] [2022-12-14 06:39:11,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:11,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:11,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:39:11,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:11,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901765379] [2022-12-14 06:39:11,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901765379] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:39:11,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326115505] [2022-12-14 06:39:11,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:11,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:39:11,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:39:11,948 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:39:11,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:39:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:12,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 06:39:12,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:39:12,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:39:12,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:39:12,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326115505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:39:12,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 06:39:12,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-14 06:39:12,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105468846] [2022-12-14 06:39:12,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:39:12,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 06:39:12,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:12,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 06:39:12,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:39:12,061 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:12,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:12,198 INFO L93 Difference]: Finished difference Result 98 states and 105 transitions. [2022-12-14 06:39:12,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:39:12,199 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 06:39:12,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:12,200 INFO L225 Difference]: With dead ends: 98 [2022-12-14 06:39:12,200 INFO L226 Difference]: Without dead ends: 97 [2022-12-14 06:39:12,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 06:39:12,202 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 48 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:12,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 75 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:39:12,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-12-14 06:39:12,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 53. [2022-12-14 06:39:12,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.78125) internal successors, (57), 52 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:12,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2022-12-14 06:39:12,208 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 7 [2022-12-14 06:39:12,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:12,209 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2022-12-14 06:39:12,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:12,209 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-12-14 06:39:12,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:39:12,209 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:12,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:39:12,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:39:12,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:39:12,411 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:12,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:12,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1625792101, now seen corresponding path program 1 times [2022-12-14 06:39:12,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:12,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351702245] [2022-12-14 06:39:12,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:12,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:12,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:39:12,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:12,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351702245] [2022-12-14 06:39:12,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351702245] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:39:12,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:39:12,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:39:12,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972746209] [2022-12-14 06:39:12,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:39:12,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:39:12,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:12,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:39:12,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:39:12,551 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:12,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:12,604 INFO L93 Difference]: Finished difference Result 78 states and 89 transitions. [2022-12-14 06:39:12,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:39:12,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 06:39:12,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:12,606 INFO L225 Difference]: With dead ends: 78 [2022-12-14 06:39:12,606 INFO L226 Difference]: Without dead ends: 51 [2022-12-14 06:39:12,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:39:12,607 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 83 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:12,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 20 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:39:12,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-12-14 06:39:12,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2022-12-14 06:39:12,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 35 states have (on average 1.542857142857143) internal successors, (54), 49 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:12,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-12-14 06:39:12,612 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 8 [2022-12-14 06:39:12,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:12,612 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-12-14 06:39:12,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:12,612 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-12-14 06:39:12,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:39:12,612 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:12,612 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-12-14 06:39:12,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 06:39:12,613 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:12,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:12,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1625780121, now seen corresponding path program 1 times [2022-12-14 06:39:12,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:12,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060478432] [2022-12-14 06:39:12,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:12,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:12,676 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:39:12,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:12,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060478432] [2022-12-14 06:39:12,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060478432] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:39:12,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362960185] [2022-12-14 06:39:12,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:12,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:39:12,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:39:12,678 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:39:12,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:39:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:12,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 06:39:12,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:39:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:39:12,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:39:12,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:39:12,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362960185] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:39:12,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1728477319] [2022-12-14 06:39:12,825 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-12-14 06:39:12,825 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:39:12,827 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:39:12,832 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:39:12,832 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:39:13,127 INFO L321 Elim1Store]: treesize reduction 402, result has 16.4 percent of original size [2022-12-14 06:39:13,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 80 treesize of output 137 [2022-12-14 06:39:13,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 25 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 61 [2022-12-14 06:39:13,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 14 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 06:39:13,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:13,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:13,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:13,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:13,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:13,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:13,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:13,480 INFO L321 Elim1Store]: treesize reduction 134, result has 12.4 percent of original size [2022-12-14 06:39:13,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 571 treesize of output 540 [2022-12-14 06:39:13,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:13,819 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 06:39:13,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 06:39:13,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:13,868 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 06:39:13,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 06:39:13,883 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:39:14,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1728477319] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:39:14,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:39:14,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 5] total 14 [2022-12-14 06:39:14,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232136358] [2022-12-14 06:39:14,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:39:14,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:39:14,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:14,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:39:14,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-12-14 06:39:14,064 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:14,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:14,246 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2022-12-14 06:39:14,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:39:14,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 06:39:14,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:14,247 INFO L225 Difference]: With dead ends: 66 [2022-12-14 06:39:14,248 INFO L226 Difference]: Without dead ends: 61 [2022-12-14 06:39:14,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-12-14 06:39:14,249 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 12 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:14,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 57 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:39:14,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-14 06:39:14,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2022-12-14 06:39:14,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 54 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:14,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2022-12-14 06:39:14,256 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 8 [2022-12-14 06:39:14,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:14,256 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2022-12-14 06:39:14,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:14,256 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2022-12-14 06:39:14,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 06:39:14,257 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:14,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:39:14,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:39:14,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:39:14,458 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:14,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:14,459 INFO L85 PathProgramCache]: Analyzing trace with hash -140470959, now seen corresponding path program 1 times [2022-12-14 06:39:14,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:14,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239524300] [2022-12-14 06:39:14,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:14,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:14,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:39:14,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:14,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239524300] [2022-12-14 06:39:14,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239524300] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:39:14,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:39:14,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:39:14,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113322084] [2022-12-14 06:39:14,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:39:14,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:39:14,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:14,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:39:14,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:39:14,522 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:14,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:14,590 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions. [2022-12-14 06:39:14,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:39:14,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-12-14 06:39:14,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:14,591 INFO L225 Difference]: With dead ends: 80 [2022-12-14 06:39:14,591 INFO L226 Difference]: Without dead ends: 78 [2022-12-14 06:39:14,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:39:14,592 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 23 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:14,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 53 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:39:14,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-12-14 06:39:14,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 57. [2022-12-14 06:39:14,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 56 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:14,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2022-12-14 06:39:14,598 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 16 [2022-12-14 06:39:14,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:14,598 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2022-12-14 06:39:14,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:14,599 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2022-12-14 06:39:14,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 06:39:14,599 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:14,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:39:14,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 06:39:14,600 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:14,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:14,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1609299981, now seen corresponding path program 1 times [2022-12-14 06:39:14,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:14,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904995193] [2022-12-14 06:39:14,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:14,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:14,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:39:14,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:14,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904995193] [2022-12-14 06:39:14,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904995193] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:39:14,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:39:14,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:39:14,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695819043] [2022-12-14 06:39:14,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:39:14,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:39:14,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:14,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:39:14,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:39:14,665 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:14,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:14,731 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2022-12-14 06:39:14,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:39:14,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 06:39:14,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:14,732 INFO L225 Difference]: With dead ends: 78 [2022-12-14 06:39:14,732 INFO L226 Difference]: Without dead ends: 76 [2022-12-14 06:39:14,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:39:14,733 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 29 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:14,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 53 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:39:14,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-12-14 06:39:14,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2022-12-14 06:39:14,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 45 states have (on average 1.4) internal successors, (63), 58 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:14,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2022-12-14 06:39:14,740 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 20 [2022-12-14 06:39:14,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:14,740 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2022-12-14 06:39:14,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:14,740 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2022-12-14 06:39:14,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 06:39:14,741 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:14,741 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:39:14,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 06:39:14,741 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:14,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:14,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1609182333, now seen corresponding path program 1 times [2022-12-14 06:39:14,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:14,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8070144] [2022-12-14 06:39:14,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:14,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:14,808 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 06:39:14,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:14,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8070144] [2022-12-14 06:39:14,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8070144] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:39:14,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568802020] [2022-12-14 06:39:14,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:14,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:39:14,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:39:14,810 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:39:14,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:39:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:14,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 06:39:14,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:39:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 06:39:14,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:39:14,919 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 06:39:14,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568802020] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:39:14,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1084038961] [2022-12-14 06:39:14,922 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-12-14 06:39:14,922 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:39:14,923 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:39:14,923 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:39:14,923 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:39:15,152 INFO L321 Elim1Store]: treesize reduction 402, result has 16.4 percent of original size [2022-12-14 06:39:15,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 80 treesize of output 137 [2022-12-14 06:39:15,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 25 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 61 [2022-12-14 06:39:15,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 14 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 06:39:15,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 83 [2022-12-14 06:39:15,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:15,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:15,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:15,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:15,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:15,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:15,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:15,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:15,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:15,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:15,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:15,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:15,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:15,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:15,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:15,695 INFO L321 Elim1Store]: treesize reduction 176, result has 19.3 percent of original size [2022-12-14 06:39:15,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 623 treesize of output 592 [2022-12-14 06:39:16,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:16,309 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 06:39:16,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 06:39:16,432 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:16,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:16,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:16,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:16,495 INFO L321 Elim1Store]: treesize reduction 120, result has 43.4 percent of original size [2022-12-14 06:39:16,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 106 [2022-12-14 06:39:16,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:16,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:16,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:16,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:16,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:16,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:16,662 INFO L321 Elim1Store]: treesize reduction 168, result has 30.6 percent of original size [2022-12-14 06:39:16,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 307 treesize of output 246 [2022-12-14 06:39:16,761 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:16,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:16,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:16,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:16,842 INFO L321 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2022-12-14 06:39:16,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 72 [2022-12-14 06:39:16,890 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:16,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:16,946 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:39:17,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1084038961] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:39:17,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:39:17,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5, 5, 5] total 19 [2022-12-14 06:39:17,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349216808] [2022-12-14 06:39:17,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:39:17,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 06:39:17,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:17,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 06:39:17,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2022-12-14 06:39:17,718 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:19,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:19,772 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2022-12-14 06:39:19,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 06:39:19,773 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 06:39:19,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:19,773 INFO L225 Difference]: With dead ends: 59 [2022-12-14 06:39:19,773 INFO L226 Difference]: Without dead ends: 53 [2022-12-14 06:39:19,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 38 SyntacticMatches, 8 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=134, Invalid=516, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:39:19,774 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 48 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:19,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 60 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:39:19,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-14 06:39:19,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 43. [2022-12-14 06:39:19,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:19,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2022-12-14 06:39:19,778 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 20 [2022-12-14 06:39:19,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:19,778 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2022-12-14 06:39:19,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:19,778 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2022-12-14 06:39:19,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 06:39:19,779 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:19,779 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:39:19,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 06:39:19,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:39:19,980 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:19,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:19,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2064088909, now seen corresponding path program 1 times [2022-12-14 06:39:19,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:19,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473694354] [2022-12-14 06:39:19,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:19,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:20,051 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 06:39:20,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:20,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473694354] [2022-12-14 06:39:20,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473694354] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:39:20,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320990988] [2022-12-14 06:39:20,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:20,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:39:20,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:39:20,052 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:39:20,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:39:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:20,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 06:39:20,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:39:20,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 06:39:20,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:39:20,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 06:39:20,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320990988] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:39:20,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1111537296] [2022-12-14 06:39:20,180 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-12-14 06:39:20,180 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:39:20,180 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:39:20,180 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:39:20,180 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:39:20,386 INFO L321 Elim1Store]: treesize reduction 402, result has 16.4 percent of original size [2022-12-14 06:39:20,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 80 treesize of output 137 [2022-12-14 06:39:20,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 25 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 61 [2022-12-14 06:39:20,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 14 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 06:39:20,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:20,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:20,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 73 [2022-12-14 06:39:20,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:20,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:20,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:20,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:20,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:20,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:20,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:20,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:20,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:20,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:20,861 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:20,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:20,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:20,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:20,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:20,903 INFO L321 Elim1Store]: treesize reduction 176, result has 19.3 percent of original size [2022-12-14 06:39:20,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 623 treesize of output 592 [2022-12-14 06:39:21,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:21,454 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 06:39:21,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 06:39:21,564 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:21,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:21,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:21,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:21,611 INFO L321 Elim1Store]: treesize reduction 120, result has 43.4 percent of original size [2022-12-14 06:39:21,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 106 [2022-12-14 06:39:21,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:21,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:21,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:21,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:21,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:21,711 INFO L321 Elim1Store]: treesize reduction 168, result has 31.1 percent of original size [2022-12-14 06:39:21,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 257 treesize of output 216 [2022-12-14 06:39:21,779 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:21,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:21,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:21,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:21,858 INFO L321 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2022-12-14 06:39:21,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 72 [2022-12-14 06:39:21,904 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:21,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:21,936 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:21,947 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:21,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:21,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:21,994 INFO L321 Elim1Store]: treesize reduction 94, result has 27.1 percent of original size [2022-12-14 06:39:21,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 125 treesize of output 103 [2022-12-14 06:39:22,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:22,040 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:22,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:22,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:22,062 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:22,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:22,082 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:39:22,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1111537296] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:39:22,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:39:22,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5, 5, 5] total 20 [2022-12-14 06:39:22,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280950079] [2022-12-14 06:39:22,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:39:23,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:39:23,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:23,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:39:23,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2022-12-14 06:39:23,000 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:25,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:25,886 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2022-12-14 06:39:25,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 06:39:25,886 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-12-14 06:39:25,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:25,886 INFO L225 Difference]: With dead ends: 57 [2022-12-14 06:39:25,886 INFO L226 Difference]: Without dead ends: 55 [2022-12-14 06:39:25,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 46 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=153, Invalid=603, Unknown=0, NotChecked=0, Total=756 [2022-12-14 06:39:25,887 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 30 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:25,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 52 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:39:25,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-12-14 06:39:25,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 39. [2022-12-14 06:39:25,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.303030303030303) internal successors, (43), 38 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:25,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-12-14 06:39:25,892 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 23 [2022-12-14 06:39:25,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:25,892 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-12-14 06:39:25,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:25,892 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-12-14 06:39:25,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 06:39:25,892 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:25,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:39:25,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 06:39:26,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-14 06:39:26,094 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:26,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:26,096 INFO L85 PathProgramCache]: Analyzing trace with hash 437769839, now seen corresponding path program 1 times [2022-12-14 06:39:26,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:26,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439167693] [2022-12-14 06:39:26,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:26,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:26,171 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 06:39:26,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:26,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439167693] [2022-12-14 06:39:26,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439167693] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:39:26,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:39:26,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:39:26,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104588528] [2022-12-14 06:39:26,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:39:26,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:39:26,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:26,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:39:26,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:39:26,172 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:26,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:26,228 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2022-12-14 06:39:26,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:39:26,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 06:39:26,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:26,229 INFO L225 Difference]: With dead ends: 68 [2022-12-14 06:39:26,229 INFO L226 Difference]: Without dead ends: 66 [2022-12-14 06:39:26,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:39:26,230 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 27 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:26,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 33 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:39:26,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-12-14 06:39:26,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 41. [2022-12-14 06:39:26,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 40 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:26,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-12-14 06:39:26,234 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 24 [2022-12-14 06:39:26,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:26,235 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-12-14 06:39:26,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:26,235 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-12-14 06:39:26,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 06:39:26,235 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:26,235 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:39:26,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 06:39:26,235 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:26,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:26,236 INFO L85 PathProgramCache]: Analyzing trace with hash 2080682584, now seen corresponding path program 1 times [2022-12-14 06:39:26,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:26,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389707484] [2022-12-14 06:39:26,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:26,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:26,291 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 06:39:26,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:26,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389707484] [2022-12-14 06:39:26,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389707484] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:39:26,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259833399] [2022-12-14 06:39:26,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:26,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:39:26,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:39:26,293 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:39:26,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 06:39:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:26,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 06:39:26,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:39:26,390 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 06:39:26,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:39:26,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 06:39:26,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259833399] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:39:26,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [653595561] [2022-12-14 06:39:26,410 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-12-14 06:39:26,410 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:39:26,410 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:39:26,410 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:39:26,410 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:39:26,624 INFO L321 Elim1Store]: treesize reduction 402, result has 16.4 percent of original size [2022-12-14 06:39:26,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 80 treesize of output 137 [2022-12-14 06:39:26,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 25 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 61 [2022-12-14 06:39:26,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 14 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 06:39:26,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 83 [2022-12-14 06:39:27,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,067 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,102 INFO L321 Elim1Store]: treesize reduction 237, result has 4.4 percent of original size [2022-12-14 06:39:27,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 8 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 655 treesize of output 610 [2022-12-14 06:39:27,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,211 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 06:39:27,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 06:39:27,318 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:27,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:27,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,389 INFO L321 Elim1Store]: treesize reduction 120, result has 43.4 percent of original size [2022-12-14 06:39:27,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 106 [2022-12-14 06:39:27,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,508 INFO L321 Elim1Store]: treesize reduction 168, result has 30.6 percent of original size [2022-12-14 06:39:27,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 191 treesize of output 194 [2022-12-14 06:39:27,589 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:27,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:27,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,655 INFO L321 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2022-12-14 06:39:27,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 72 [2022-12-14 06:39:27,696 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:27,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:27,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,742 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:27,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:27,764 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,778 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:27,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 130 treesize of output 92 [2022-12-14 06:39:27,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,818 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:27,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:27,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,838 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:27,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:27,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,854 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:27,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:27,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,874 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:27,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:27,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:27,936 INFO L321 Elim1Store]: treesize reduction 104, result has 26.2 percent of original size [2022-12-14 06:39:27,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 137 treesize of output 118 [2022-12-14 06:39:27,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:27,992 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:27,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:28,023 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:28,031 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:28,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:28,062 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:39:29,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [653595561] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:39:29,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:39:29,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5, 5, 5] total 22 [2022-12-14 06:39:29,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219516894] [2022-12-14 06:39:29,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:39:29,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 06:39:29,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:29,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 06:39:29,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2022-12-14 06:39:29,325 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 14 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:33,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:33,343 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2022-12-14 06:39:33,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 06:39:33,343 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-12-14 06:39:33,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:33,344 INFO L225 Difference]: With dead ends: 64 [2022-12-14 06:39:33,344 INFO L226 Difference]: Without dead ends: 60 [2022-12-14 06:39:33,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 55 SyntacticMatches, 9 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=177, Invalid=753, Unknown=0, NotChecked=0, Total=930 [2022-12-14 06:39:33,344 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 37 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:33,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 34 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 06:39:33,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-12-14 06:39:33,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 42. [2022-12-14 06:39:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:33,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-12-14 06:39:33,349 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 27 [2022-12-14 06:39:33,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:33,350 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-12-14 06:39:33,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:33,350 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-12-14 06:39:33,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 06:39:33,350 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:33,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:39:33,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-14 06:39:33,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 06:39:33,552 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:33,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:33,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1972663306, now seen corresponding path program 1 times [2022-12-14 06:39:33,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:33,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951217351] [2022-12-14 06:39:33,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:33,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:33,644 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 06:39:33,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:33,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951217351] [2022-12-14 06:39:33,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951217351] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:39:33,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:39:33,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:39:33,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951654191] [2022-12-14 06:39:33,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:39:33,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:39:33,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:33,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:39:33,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:39:33,646 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:33,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:33,702 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2022-12-14 06:39:33,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:39:33,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-12-14 06:39:33,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:33,703 INFO L225 Difference]: With dead ends: 62 [2022-12-14 06:39:33,703 INFO L226 Difference]: Without dead ends: 60 [2022-12-14 06:39:33,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:39:33,704 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 19 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:33,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 31 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:39:33,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-12-14 06:39:33,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 44. [2022-12-14 06:39:33,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 40 states have (on average 1.2) internal successors, (48), 43 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:33,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-12-14 06:39:33,712 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 32 [2022-12-14 06:39:33,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:33,712 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-12-14 06:39:33,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:33,712 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-12-14 06:39:33,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 06:39:33,713 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:33,713 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:39:33,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 06:39:33,713 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:33,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:33,713 INFO L85 PathProgramCache]: Analyzing trace with hash 293641857, now seen corresponding path program 1 times [2022-12-14 06:39:33,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:33,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245059617] [2022-12-14 06:39:33,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:33,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:33,798 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 06:39:33,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:33,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245059617] [2022-12-14 06:39:33,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245059617] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:39:33,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043134913] [2022-12-14 06:39:33,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:33,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:39:33,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:39:33,799 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:39:33,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 06:39:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:33,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 06:39:33,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:39:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 06:39:33,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:39:33,913 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 06:39:33,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043134913] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:39:33,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1317918963] [2022-12-14 06:39:33,914 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2022-12-14 06:39:33,914 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:39:33,914 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:39:33,914 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:39:33,914 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:39:34,095 INFO L321 Elim1Store]: treesize reduction 402, result has 16.4 percent of original size [2022-12-14 06:39:34,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 80 treesize of output 137 [2022-12-14 06:39:34,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 25 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 61 [2022-12-14 06:39:34,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 14 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 06:39:34,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 83 [2022-12-14 06:39:34,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:34,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:34,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:34,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:34,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:34,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:34,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:34,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:34,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:34,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:34,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:34,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:34,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:34,552 INFO L321 Elim1Store]: treesize reduction 101, result has 9.8 percent of original size [2022-12-14 06:39:34,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 675 treesize of output 596 [2022-12-14 06:39:34,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:34,676 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 06:39:34,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 06:39:34,787 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:34,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:34,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:34,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:34,852 INFO L321 Elim1Store]: treesize reduction 120, result has 43.4 percent of original size [2022-12-14 06:39:34,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 106 [2022-12-14 06:39:34,920 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:34,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:34,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:34,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:35,004 INFO L321 Elim1Store]: treesize reduction 120, result has 43.4 percent of original size [2022-12-14 06:39:35,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 106 [2022-12-14 06:39:35,113 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:35,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:35,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:35,142 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:35,197 INFO L321 Elim1Store]: treesize reduction 120, result has 43.4 percent of original size [2022-12-14 06:39:35,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 106 [2022-12-14 06:39:35,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:35,293 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:35,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:35,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:35,315 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:35,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:35,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:35,358 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:35,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 142 treesize of output 95 [2022-12-14 06:39:35,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:35,410 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:35,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:35,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:35,481 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:35,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:35,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:35,502 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:35,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:35,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:35,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:35,571 INFO L321 Elim1Store]: treesize reduction 104, result has 26.2 percent of original size [2022-12-14 06:39:35,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 137 treesize of output 118 [2022-12-14 06:39:35,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:35,620 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:35,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:35,876 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:39:37,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1317918963] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:39:37,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:39:37,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [5, 5, 5] total 25 [2022-12-14 06:39:37,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636170707] [2022-12-14 06:39:37,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:39:37,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 06:39:37,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:37,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 06:39:37,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2022-12-14 06:39:37,391 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 17 states, 16 states have (on average 2.125) internal successors, (34), 16 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:43,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:43,353 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2022-12-14 06:39:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 06:39:43,353 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.125) internal successors, (34), 16 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-12-14 06:39:43,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:43,353 INFO L225 Difference]: With dead ends: 60 [2022-12-14 06:39:43,354 INFO L226 Difference]: Without dead ends: 57 [2022-12-14 06:39:43,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 79 SyntacticMatches, 9 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=305, Invalid=1587, Unknown=0, NotChecked=0, Total=1892 [2022-12-14 06:39:43,354 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 117 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:43,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 0 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 06:39:43,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-12-14 06:39:43,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 41. [2022-12-14 06:39:43,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.125) internal successors, (45), 40 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:43,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-12-14 06:39:43,360 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 36 [2022-12-14 06:39:43,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:43,360 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-12-14 06:39:43,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.125) internal successors, (34), 16 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:43,360 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-12-14 06:39:43,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 06:39:43,361 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:43,361 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-12-14 06:39:43,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 06:39:43,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 06:39:43,563 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:43,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:43,564 INFO L85 PathProgramCache]: Analyzing trace with hash 190604426, now seen corresponding path program 1 times [2022-12-14 06:39:43,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:43,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502253891] [2022-12-14 06:39:43,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:43,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:43,634 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 06:39:43,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:43,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502253891] [2022-12-14 06:39:43,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502253891] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:39:43,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185752117] [2022-12-14 06:39:43,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:43,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:39:43,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:39:43,635 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:39:43,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 06:39:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:43,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 06:39:43,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:39:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 06:39:43,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:39:43,761 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 06:39:43,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185752117] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:39:43,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [313202882] [2022-12-14 06:39:43,763 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2022-12-14 06:39:43,763 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:39:43,763 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:39:43,763 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:39:43,763 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:39:43,995 INFO L321 Elim1Store]: treesize reduction 402, result has 16.4 percent of original size [2022-12-14 06:39:43,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 80 treesize of output 137 [2022-12-14 06:39:44,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 25 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 61 [2022-12-14 06:39:44,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 14 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 06:39:44,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 83 [2022-12-14 06:39:44,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:44,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:44,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:44,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:44,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:44,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:44,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:44,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:44,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:44,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:44,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:44,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:44,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:44,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:44,471 INFO L321 Elim1Store]: treesize reduction 101, result has 9.8 percent of original size [2022-12-14 06:39:44,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 675 treesize of output 596 [2022-12-14 06:39:44,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:44,578 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 06:39:44,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 06:39:44,683 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:44,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:44,692 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:44,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:44,726 INFO L321 Elim1Store]: treesize reduction 120, result has 43.4 percent of original size [2022-12-14 06:39:44,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 106 [2022-12-14 06:39:44,790 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:44,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:44,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:44,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:44,856 INFO L321 Elim1Store]: treesize reduction 120, result has 43.4 percent of original size [2022-12-14 06:39:44,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 106 [2022-12-14 06:39:44,948 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:44,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:44,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:44,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:45,022 INFO L321 Elim1Store]: treesize reduction 120, result has 43.4 percent of original size [2022-12-14 06:39:45,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 106 [2022-12-14 06:39:45,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:45,126 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:45,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:45,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:45,139 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:45,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:45,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:45,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:45,201 INFO L321 Elim1Store]: treesize reduction 104, result has 26.2 percent of original size [2022-12-14 06:39:45,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 137 treesize of output 118 [2022-12-14 06:39:45,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:45,235 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:45,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:45,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:45,280 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:45,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:45,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:45,294 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:45,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:45,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:45,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:45,360 INFO L321 Elim1Store]: treesize reduction 104, result has 26.2 percent of original size [2022-12-14 06:39:45,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 137 treesize of output 118 [2022-12-14 06:39:45,393 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:45,398 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:45,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:45,599 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:39:46,942 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3059#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (< 2147483646 |ULTIMATE.start_main_#t~post21#1|) (<= 1 ~SIZE~0) (= |ULTIMATE.start_main_~a_copy~0#1.offset| 0) (= |ULTIMATE.start_main_~b_copy~0#1.offset| 0) (<= ~SIZE~0 100000) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 06:39:46,942 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:39:46,942 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:39:46,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-12-14 06:39:46,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72718275] [2022-12-14 06:39:46,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:39:46,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 06:39:46,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:46,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 06:39:46,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:39:46,943 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:47,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:47,016 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2022-12-14 06:39:47,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:39:47,016 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-12-14 06:39:47,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:47,016 INFO L225 Difference]: With dead ends: 81 [2022-12-14 06:39:47,016 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 06:39:47,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 90 SyntacticMatches, 9 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2022-12-14 06:39:47,017 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 28 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:47,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 42 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:39:47,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 06:39:47,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2022-12-14 06:39:47,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 43 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:47,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-12-14 06:39:47,026 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 40 [2022-12-14 06:39:47,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:47,026 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-12-14 06:39:47,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:47,026 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-12-14 06:39:47,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 06:39:47,026 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:39:47,026 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2022-12-14 06:39:47,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 06:39:47,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:39:47,227 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 06:39:47,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:39:47,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1989021191, now seen corresponding path program 2 times [2022-12-14 06:39:47,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:39:47,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36474273] [2022-12-14 06:39:47,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:39:47,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:39:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:39:47,306 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 06:39:47,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:39:47,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36474273] [2022-12-14 06:39:47,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36474273] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:39:47,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693764680] [2022-12-14 06:39:47,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 06:39:47,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:39:47,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:39:47,308 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:39:47,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 06:39:47,379 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 06:39:47,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:39:47,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:39:47,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:39:47,427 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 06:39:47,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:39:47,471 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 06:39:47,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693764680] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:39:47,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [206962375] [2022-12-14 06:39:47,474 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2022-12-14 06:39:47,474 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:39:47,474 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:39:47,474 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:39:47,474 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:39:47,674 INFO L321 Elim1Store]: treesize reduction 339, result has 19.5 percent of original size [2022-12-14 06:39:47,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 100 [2022-12-14 06:39:47,863 INFO L321 Elim1Store]: treesize reduction 402, result has 16.4 percent of original size [2022-12-14 06:39:47,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 80 treesize of output 137 [2022-12-14 06:39:47,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 14 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 06:39:47,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 83 [2022-12-14 06:39:48,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:48,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:48,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:48,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:48,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:48,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:48,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:48,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:48,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:48,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:48,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:48,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:48,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:48,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:48,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:48,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:48,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:48,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:48,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:48,317 INFO L321 Elim1Store]: treesize reduction 237, result has 4.4 percent of original size [2022-12-14 06:39:48,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 8 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 655 treesize of output 610 [2022-12-14 06:39:48,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:48,421 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 06:39:48,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 06:39:48,517 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:48,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:48,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:48,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:48,572 INFO L321 Elim1Store]: treesize reduction 120, result has 43.4 percent of original size [2022-12-14 06:39:48,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 106 [2022-12-14 06:39:48,636 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:48,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:48,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:48,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:48,706 INFO L321 Elim1Store]: treesize reduction 120, result has 43.4 percent of original size [2022-12-14 06:39:48,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 106 [2022-12-14 06:39:48,799 INFO L321 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-12-14 06:39:48,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:39:48,830 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:48,833 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:48,881 INFO L321 Elim1Store]: treesize reduction 120, result has 43.4 percent of original size [2022-12-14 06:39:48,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 106 [2022-12-14 06:39:48,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:48,966 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:48,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:48,978 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:48,988 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:48,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:49,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:49,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:49,031 INFO L321 Elim1Store]: treesize reduction 39, result has 22.0 percent of original size [2022-12-14 06:39:49,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 137 treesize of output 102 [2022-12-14 06:39:49,067 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:49,075 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:49,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:49,126 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:49,134 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:49,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:49,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:49,147 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:49,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:49,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:49,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:39:49,201 INFO L321 Elim1Store]: treesize reduction 104, result has 26.2 percent of original size [2022-12-14 06:39:49,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 137 treesize of output 118 [2022-12-14 06:39:49,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:39:49,235 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 06:39:49,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 26 [2022-12-14 06:39:49,444 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:39:51,073 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3493#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (< 2147483646 |ULTIMATE.start_main_#t~post21#1|) (<= 1 ~SIZE~0) (= |ULTIMATE.start_main_~a_copy~0#1.offset| 0) (= |ULTIMATE.start_main_~b_copy~0#1.offset| 0) (<= ~SIZE~0 100000) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 06:39:51,073 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:39:51,073 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:39:51,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 9 [2022-12-14 06:39:51,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296325370] [2022-12-14 06:39:51,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:39:51,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:39:51,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:39:51,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:39:51,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2022-12-14 06:39:51,074 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:51,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:39:51,224 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2022-12-14 06:39:51,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:39:51,225 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-12-14 06:39:51,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:39:51,225 INFO L225 Difference]: With dead ends: 81 [2022-12-14 06:39:51,225 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 06:39:51,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 100 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2022-12-14 06:39:51,226 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 100 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:39:51,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 22 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:39:51,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 06:39:51,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 06:39:51,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:51,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 06:39:51,226 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2022-12-14 06:39:51,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:39:51,226 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 06:39:51,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:39:51,227 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 06:39:51,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 06:39:51,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2022-12-14 06:39:51,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2022-12-14 06:39:51,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2022-12-14 06:39:51,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2022-12-14 06:39:51,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2022-12-14 06:39:51,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2022-12-14 06:39:51,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2022-12-14 06:39:51,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2022-12-14 06:39:51,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2022-12-14 06:39:51,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2022-12-14 06:39:51,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2022-12-14 06:39:51,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2022-12-14 06:39:51,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2022-12-14 06:39:51,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2022-12-14 06:39:51,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2022-12-14 06:39:51,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2022-12-14 06:39:51,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2022-12-14 06:39:51,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2022-12-14 06:39:51,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2022-12-14 06:39:51,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2022-12-14 06:39:51,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2022-12-14 06:39:51,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2022-12-14 06:39:51,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 06:39:51,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:39:51,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 06:39:52,703 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-12-14 06:39:52,703 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-12-14 06:39:52,703 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-12-14 06:39:52,703 INFO L899 garLoopResultBuilder]: For program point L36-3(line 36) no Hoare annotation was computed. [2022-12-14 06:39:52,703 INFO L899 garLoopResultBuilder]: For program point L36-4(line 36) no Hoare annotation was computed. [2022-12-14 06:39:52,703 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-12-14 06:39:52,704 INFO L895 garLoopResultBuilder]: At program point L36-5(lines 36 40) the Hoare annotation is: (let ((.cse0 (<= 2 ~SIZE~0)) (.cse1 (<= ~SIZE~0 100000))) (or (and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse0 (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (<= |#NULL.offset| 0) (<= 100000 ~MAX~0) .cse1 (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~a_copy~0#1.offset|) (<= 0 |ULTIMATE.start_main_~b_copy~0#1.offset|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~a_copy~0#1.offset| 0) (<= |ULTIMATE.start_main_~b_copy~0#1.offset| 0) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~MAX~0 100000)) (let ((.cse2 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= 13 (select |#length| 2)) (= ~MAX~0 100000) .cse0 (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~a_copy~0#1.offset| 0) (= |ULTIMATE.start_main_~b_copy~0#1.offset| 0) .cse1 (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse2 0) 48) (= (select .cse2 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))))) [2022-12-14 06:39:52,704 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2022-12-14 06:39:52,704 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2022-12-14 06:39:52,704 INFO L899 garLoopResultBuilder]: For program point L61-2(line 61) no Hoare annotation was computed. [2022-12-14 06:39:52,704 INFO L899 garLoopResultBuilder]: For program point L61-3(line 61) no Hoare annotation was computed. [2022-12-14 06:39:52,704 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-12-14 06:39:52,704 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 64) no Hoare annotation was computed. [2022-12-14 06:39:52,704 INFO L902 garLoopResultBuilder]: At program point L20-1(lines 20 64) the Hoare annotation is: true [2022-12-14 06:39:52,704 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-12-14 06:39:52,704 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-12-14 06:39:52,704 INFO L899 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2022-12-14 06:39:52,704 INFO L899 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2022-12-14 06:39:52,705 INFO L895 garLoopResultBuilder]: At program point L29-5(lines 29 33) the Hoare annotation is: (let ((.cse16 (select |#memory_int| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= 13 (select |#length| 2))) (.cse2 (<= 2 ~SIZE~0)) (.cse3 (= 2 (select |#length| 1))) (.cse4 (= (select |#valid| 3) 1)) (.cse5 (= |ULTIMATE.start_main_~b_copy~0#1.offset| 0)) (.cse6 (= (select |#valid| 1) 1)) (.cse7 (= (select |#valid| 0) 0)) (.cse8 (= |ULTIMATE.start_main_~b~0#1.offset| 0)) (.cse9 (= (select |#valid| 2) 1)) (.cse10 (= |#NULL.offset| 0)) (.cse11 (= (select .cse16 0) 48)) (.cse12 (= (select .cse16 1) 0)) (.cse13 (< 0 |#StackHeapBarrier|)) (.cse14 (= |#NULL.base| 0))) (or (and .cse0 (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) .cse1 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse2 .cse3 .cse4 .cse5 (<= 100000 ~MAX~0) (<= ~SIZE~0 100000) .cse6 (<= 0 |ULTIMATE.start_main_~a_copy~0#1.offset|) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (<= |ULTIMATE.start_main_~a_copy~0#1.offset| 0) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~MAX~0 100000) .cse13 .cse14) (let ((.cse15 (* 4 (mod ~SIZE~0 1073741824)))) (and (not (= 3 |ULTIMATE.start_main_~b~0#1.base|)) (< |ULTIMATE.start_main_~a_copy~0#1.base| |#StackHeapBarrier|) (not (= 3 |ULTIMATE.start_main_~a_copy~0#1.base|)) (not (= |ULTIMATE.start_main_~a~0#1.base| |ULTIMATE.start_main_~a_copy~0#1.base|)) .cse0 (< |ULTIMATE.start_main_~a~0#1.base| |#StackHeapBarrier|) (not (= |ULTIMATE.start_main_~b_copy~0#1.base| 3)) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (< ~SIZE~0 ~MAX~0) (< |ULTIMATE.start_main_~b~0#1.base| |#StackHeapBarrier|) .cse1 (= ~MAX~0 100000) (< |ULTIMATE.start_main_~b_copy~0#1.base| |#StackHeapBarrier|) .cse2 (= .cse15 (select |#length| |ULTIMATE.start_main_~b_copy~0#1.base|)) .cse3 (not (= |ULTIMATE.start_main_~b~0#1.base| |ULTIMATE.start_main_~a_copy~0#1.base|)) (= .cse15 (select |#length| |ULTIMATE.start_main_~b~0#1.base|)) .cse4 (not (= |ULTIMATE.start_main_~b_copy~0#1.base| |ULTIMATE.start_main_~b~0#1.base|)) (= |ULTIMATE.start_main_~a_copy~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~a_copy~0#1.base|) 1) .cse5 (= (select |#length| |ULTIMATE.start_main_~a~0#1.base|) .cse15) (= (select |#valid| |ULTIMATE.start_main_~b~0#1.base|) 1) .cse6 (not (= |ULTIMATE.start_main_~b_copy~0#1.base| |ULTIMATE.start_main_~a_copy~0#1.base|)) (not (= |ULTIMATE.start_main_~b_copy~0#1.base| |ULTIMATE.start_main_~a~0#1.base|)) .cse7 .cse8 (not (= |ULTIMATE.start_main_~b~0#1.base| |ULTIMATE.start_main_~a~0#1.base|)) (= .cse15 (select |#length| |ULTIMATE.start_main_~a_copy~0#1.base|)) .cse9 .cse10 .cse11 (not (= 3 |ULTIMATE.start_main_~a~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~b_copy~0#1.base|) 1) (= (select |#valid| |ULTIMATE.start_main_~a~0#1.base|) 1) .cse12 .cse13 .cse14))))) [2022-12-14 06:39:52,705 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-12-14 06:39:52,705 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-12-14 06:39:52,705 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 06:39:52,705 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-12-14 06:39:52,705 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2022-12-14 06:39:52,705 INFO L899 garLoopResultBuilder]: For program point L38-2(line 38) no Hoare annotation was computed. [2022-12-14 06:39:52,705 INFO L899 garLoopResultBuilder]: For program point L38-3(line 38) no Hoare annotation was computed. [2022-12-14 06:39:52,705 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-12-14 06:39:52,705 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 06:39:52,705 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point L39-2(line 39) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point L39-3(line 39) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point L59-3(line 59) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L899 garLoopResultBuilder]: For program point L59-4(line 59) no Hoare annotation was computed. [2022-12-14 06:39:52,706 INFO L895 garLoopResultBuilder]: At program point L59-5(lines 59 63) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~a~0#1.offset| 0)) (.cse1 (= ~MAX~0 100000)) (.cse2 (<= 2 ~SIZE~0)) (.cse3 (= |ULTIMATE.start_main_~a_copy~0#1.offset| 0)) (.cse4 (= |ULTIMATE.start_main_~b_copy~0#1.offset| 0)) (.cse5 (<= ~SIZE~0 100000)) (.cse6 (= |ULTIMATE.start_main_~b~0#1.offset| 0)) (.cse7 (= |#NULL.offset| 0)) (.cse8 (<= 0 |#StackHeapBarrier|)) (.cse9 (= |#NULL.base| 0))) (or (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse1 (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse2 .cse3 .cse4 .cse5 (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) .cse6 .cse7 (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) .cse8 .cse9))) [2022-12-14 06:39:52,707 INFO L899 garLoopResultBuilder]: For program point L51-3(line 51) no Hoare annotation was computed. [2022-12-14 06:39:52,707 INFO L899 garLoopResultBuilder]: For program point L51-4(line 51) no Hoare annotation was computed. [2022-12-14 06:39:52,707 INFO L895 garLoopResultBuilder]: At program point L51-5(lines 51 56) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= 2 ~SIZE~0) (= |ULTIMATE.start_main_~a_copy~0#1.offset| 0) (= |ULTIMATE.start_main_~b_copy~0#1.offset| 0) (<= 100000 ~MAX~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~i~0#1| 100000) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~MAX~0 100000) (= |#NULL.base| 0)) [2022-12-14 06:39:52,707 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-12-14 06:39:52,707 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-12-14 06:39:52,707 INFO L899 garLoopResultBuilder]: For program point L43-3(line 43) no Hoare annotation was computed. [2022-12-14 06:39:52,707 INFO L899 garLoopResultBuilder]: For program point L43-4(line 43) no Hoare annotation was computed. [2022-12-14 06:39:52,707 INFO L895 garLoopResultBuilder]: At program point L43-5(lines 43 48) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= 2 ~SIZE~0) (= |ULTIMATE.start_main_~a_copy~0#1.offset| 0) (= |ULTIMATE.start_main_~b_copy~0#1.offset| 0) (<= 100000 ~MAX~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~i~0#1| 100000) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~MAX~0 100000) (= |#NULL.base| 0)) [2022-12-14 06:39:52,709 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:39:52,710 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:39:52,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:39:52 BoogieIcfgContainer [2022-12-14 06:39:52,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:39:52,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:39:52,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:39:52,731 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:39:52,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:39:11" (3/4) ... [2022-12-14 06:39:52,734 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 06:39:52,740 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-12-14 06:39:52,741 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-14 06:39:52,741 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 06:39:52,741 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 06:39:52,758 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((a == 0 && i == 0) && MAX == 100000) && 2 <= SIZE) && a_copy == 0) && b_copy == 0) && SIZE <= 100000) && b == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((a == 0 && 1 <= i) && MAX == 100000) && i <= 2147483647) && 2 <= SIZE) && a_copy == 0) && b_copy == 0) && SIZE <= 100000) && cond <= 1) && \old(cond) <= 1) && b == 0) && #NULL == 0) && 0 <= cond) && 0 <= \old(cond)) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-12-14 06:39:52,770 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:39:52,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:39:52,771 INFO L158 Benchmark]: Toolchain (without parser) took 42261.14ms. Allocated memory was 123.7MB in the beginning and 218.1MB in the end (delta: 94.4MB). Free memory was 88.9MB in the beginning and 155.4MB in the end (delta: -66.4MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2022-12-14 06:39:52,771 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:39:52,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.68ms. Allocated memory is still 123.7MB. Free memory was 88.7MB in the beginning and 77.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 06:39:52,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.47ms. Allocated memory is still 123.7MB. Free memory was 77.5MB in the beginning and 75.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:39:52,771 INFO L158 Benchmark]: Boogie Preprocessor took 25.16ms. Allocated memory is still 123.7MB. Free memory was 75.7MB in the beginning and 74.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:39:52,771 INFO L158 Benchmark]: RCFGBuilder took 372.01ms. Allocated memory is still 123.7MB. Free memory was 74.3MB in the beginning and 94.4MB in the end (delta: -20.1MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-12-14 06:39:52,772 INFO L158 Benchmark]: TraceAbstraction took 41598.98ms. Allocated memory was 123.7MB in the beginning and 218.1MB in the end (delta: 94.4MB). Free memory was 93.7MB in the beginning and 159.6MB in the end (delta: -65.9MB). Peak memory consumption was 131.2MB. Max. memory is 16.1GB. [2022-12-14 06:39:52,772 INFO L158 Benchmark]: Witness Printer took 38.92ms. Allocated memory is still 218.1MB. Free memory was 159.6MB in the beginning and 155.4MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:39:52,773 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.68ms. Allocated memory is still 123.7MB. Free memory was 88.7MB in the beginning and 77.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.47ms. Allocated memory is still 123.7MB. Free memory was 77.5MB in the beginning and 75.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.16ms. Allocated memory is still 123.7MB. Free memory was 75.7MB in the beginning and 74.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 372.01ms. Allocated memory is still 123.7MB. Free memory was 74.3MB in the beginning and 94.4MB in the end (delta: -20.1MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * TraceAbstraction took 41598.98ms. Allocated memory was 123.7MB in the beginning and 218.1MB in the end (delta: 94.4MB). Free memory was 93.7MB in the beginning and 159.6MB in the end (delta: -65.9MB). Peak memory consumption was 131.2MB. Max. memory is 16.1GB. * Witness Printer took 38.92ms. Allocated memory is still 218.1MB. Free memory was 159.6MB in the beginning and 155.4MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 41.5s, OverallIterations: 15, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 16.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 648 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 648 mSDsluCounter, 646 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 394 mSDsCounter, 178 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2265 IncrementalHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 178 mSolverCounterUnsat, 252 mSDtfsCounter, 2265 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 704 GetRequests, 432 SyntacticMatches, 56 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2011 ImplicationChecksByTransitivity, 21.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=7, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 236 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 18 NumberOfFragments, 600 HoareAnnotationTreeSize, 6 FomulaSimplifications, 612 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 1881 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 517 NumberOfCodeBlocks, 487 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 684 ConstructedInterpolants, 0 QuantifiedInterpolants, 1366 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1290 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 30 InterpolantComputations, 8 PerfectInterpolantSequences, 123/162 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 8.6s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 5, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 104, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 319, TOOLS_POST_TIME: 7.7s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 319, TOOLS_QUANTIFIERELIM_TIME: 7.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.7s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 517, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 33, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 26, DOMAIN_WIDEN_TIME: 0.4s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 41, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 104, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 15, LOOP_SUMMARIZER_CACHE_MISSES: 15, LOOP_SUMMARIZER_OVERALL_TIME: 5.9s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 5.9s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 41, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 4785, DAG_COMPRESSION_RETAINED_NODES: 347, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: ((((((((((((0 <= a && 2 <= SIZE) && a_copy == 0) && b_copy == 0) && 100000 <= MAX) && SIZE <= 100000) && 0 <= i) && b == 0) && #NULL == 0) && i <= 100000) && 0 <= unknown-#StackHeapBarrier-unknown) && a <= 0) && MAX <= 100000) && #NULL == 0 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((((((((((((((0 <= #NULL && 0 <= a) && 1 <= i) && i <= 2147483647) && 2 <= SIZE) && 0 <= b) && #NULL <= 0) && 100000 <= MAX) && SIZE <= 100000) && #NULL <= 0) && b <= 0) && 0 <= a_copy) && 0 <= b_copy) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && a_copy <= 0) && b_copy <= 0) && a <= 0) && MAX <= 100000) || (((((((((((((((((((unknown-#length-unknown[3] == 12 && a == 0) && i == 0) && 13 == unknown-#length-unknown[2]) && MAX == 100000) && 2 <= SIZE) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && a_copy == 0) && b_copy == 0) && SIZE <= 100000) && \valid[1] == 1) && \valid[0] == 0) && b == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: ((((((((((a == 0 && i == 0) && MAX == 100000) && 2 <= SIZE) && a_copy == 0) && b_copy == 0) && SIZE <= 100000) && b == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((a == 0 && 1 <= i) && MAX == 100000) && i <= 2147483647) && 2 <= SIZE) && a_copy == 0) && b_copy == 0) && SIZE <= 100000) && cond <= 1) && \old(cond) <= 1) && b == 0) && #NULL == 0) && 0 <= cond) && 0 <= \old(cond)) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: ((((((((((((0 <= a && 2 <= SIZE) && a_copy == 0) && b_copy == 0) && 100000 <= MAX) && SIZE <= 100000) && 0 <= i) && b == 0) && #NULL == 0) && i <= 100000) && 0 <= unknown-#StackHeapBarrier-unknown) && a <= 0) && MAX <= 100000) && #NULL == 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((unknown-#length-unknown[3] == 12 && 0 <= a) && 13 == unknown-#length-unknown[2]) && 1 <= i) && i <= 2147483647) && 2 <= SIZE) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && b_copy == 0) && 100000 <= MAX) && SIZE <= 100000) && \valid[1] == 1) && 0 <= a_copy) && \valid[0] == 0) && b == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && a_copy <= 0) && a <= 0) && MAX <= 100000) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((((((((((((((((((!(3 == b) && a_copy < unknown-#StackHeapBarrier-unknown) && !(3 == a_copy)) && !(a == a_copy)) && unknown-#length-unknown[3] == 12) && a < unknown-#StackHeapBarrier-unknown) && !(b_copy == 3)) && a == 0) && i == 0) && SIZE < MAX) && b < unknown-#StackHeapBarrier-unknown) && 13 == unknown-#length-unknown[2]) && MAX == 100000) && b_copy < unknown-#StackHeapBarrier-unknown) && 2 <= SIZE) && 4 * (SIZE % 1073741824) == unknown-#length-unknown[b_copy]) && 2 == unknown-#length-unknown[1]) && !(b == a_copy)) && 4 * (SIZE % 1073741824) == unknown-#length-unknown[b]) && \valid[3] == 1) && !(b_copy == b)) && a_copy == 0) && \valid[a_copy] == 1) && b_copy == 0) && unknown-#length-unknown[a] == 4 * (SIZE % 1073741824)) && \valid[b] == 1) && \valid[1] == 1) && !(b_copy == a_copy)) && !(b_copy == a)) && \valid[0] == 0) && b == 0) && !(b == a)) && 4 * (SIZE % 1073741824) == unknown-#length-unknown[a_copy]) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && !(3 == a)) && \valid[b_copy] == 1) && \valid[a] == 1) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-12-14 06:39:52,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412a938a-e7b9-433a-bfc1-0c768e497942/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE