./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/sina2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/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_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/sina2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ea1eb4a8af9eb0da04a9f2b25d1b98ecd98ff3b6d87ba0d8e53000f12b8adcc --- 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 13:59:06,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:59:06,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:59:06,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:59:06,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:59:06,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:59:06,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:59:06,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:59:06,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:59:06,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:59:06,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:59:06,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:59:06,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:59:06,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:59:06,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:59:06,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:59:06,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:59:06,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:59:06,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:59:06,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:59:06,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:59:06,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:59:06,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:59:06,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:59:06,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:59:06,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:59:06,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:59:06,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:59:06,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:59:06,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:59:06,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:59:06,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:59:06,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:59:06,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:59:06,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:59:06,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:59:06,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:59:06,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:59:06,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:59:06,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:59:06,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:59:06,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:59:06,515 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:59:06,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:59:06,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:59:06,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:59:06,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:59:06,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:59:06,516 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:59:06,517 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:59:06,517 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:59:06,517 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:59:06,517 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:59:06,517 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:59:06,518 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:59:06,518 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:59:06,518 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:59:06,518 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:59:06,518 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:59:06,519 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:59:06,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:59:06,520 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:59:06,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:59:06,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:59:06,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:59:06,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:59:06,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:59:06,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:59:06,521 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:59:06,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:59:06,521 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:59:06,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:59:06,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:59:06,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:59:06,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:59:06,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:59:06,522 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:59:06,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:59:06,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:59:06,523 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:59:06,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:59:06,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:59:06,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:59:06,524 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_0466eb50-4389-40dd-926b-317dc08442d8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ea1eb4a8af9eb0da04a9f2b25d1b98ecd98ff3b6d87ba0d8e53000f12b8adcc [2022-12-14 13:59:06,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:59:06,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:59:06,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:59:06,733 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:59:06,734 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:59:06,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-fpi/sina2.c [2022-12-14 13:59:09,291 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:59:09,423 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:59:09,423 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/sv-benchmarks/c/array-fpi/sina2.c [2022-12-14 13:59:09,427 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/data/758ed3f49/a4299f8357c04327a003e5a6acaf29d7/FLAG75390e997 [2022-12-14 13:59:09,439 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/data/758ed3f49/a4299f8357c04327a003e5a6acaf29d7 [2022-12-14 13:59:09,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:59:09,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:59:09,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:59:09,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:59:09,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:59:09,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:59:09" (1/1) ... [2022-12-14 13:59:09,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@787fcb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:09, skipping insertion in model container [2022-12-14 13:59:09,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:59:09" (1/1) ... [2022-12-14 13:59:09,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:59:09,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:59:09,564 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_0466eb50-4389-40dd-926b-317dc08442d8/sv-benchmarks/c/array-fpi/sina2.c[588,601] [2022-12-14 13:59:09,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:59:09,590 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:59:09,602 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_0466eb50-4389-40dd-926b-317dc08442d8/sv-benchmarks/c/array-fpi/sina2.c[588,601] [2022-12-14 13:59:09,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:59:09,622 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:59:09,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:09 WrapperNode [2022-12-14 13:59:09,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:59:09,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:59:09,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:59:09,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:59:09,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:09" (1/1) ... [2022-12-14 13:59:09,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:09" (1/1) ... [2022-12-14 13:59:09,657 INFO L138 Inliner]: procedures = 17, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2022-12-14 13:59:09,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:59:09,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:59:09,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:59:09,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:59:09,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:09" (1/1) ... [2022-12-14 13:59:09,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:09" (1/1) ... [2022-12-14 13:59:09,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:09" (1/1) ... [2022-12-14 13:59:09,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:09" (1/1) ... [2022-12-14 13:59:09,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:09" (1/1) ... [2022-12-14 13:59:09,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:09" (1/1) ... [2022-12-14 13:59:09,679 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:09" (1/1) ... [2022-12-14 13:59:09,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:09" (1/1) ... [2022-12-14 13:59:09,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:59:09,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:59:09,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:59:09,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:59:09,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:09" (1/1) ... [2022-12-14 13:59:09,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:59:09,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:59:09,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:59:09,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:59:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:59:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:59:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:59:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:59:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 13:59:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:59:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:59:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:59:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:59:09,809 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:59:09,810 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:59:09,931 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:59:09,967 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:59:09,968 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 13:59:09,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:59:09 BoogieIcfgContainer [2022-12-14 13:59:09,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:59:09,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:59:09,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:59:09,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:59:09,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:59:09" (1/3) ... [2022-12-14 13:59:09,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dda7bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:59:09, skipping insertion in model container [2022-12-14 13:59:09,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:09" (2/3) ... [2022-12-14 13:59:09,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dda7bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:59:09, skipping insertion in model container [2022-12-14 13:59:09,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:59:09" (3/3) ... [2022-12-14 13:59:09,978 INFO L112 eAbstractionObserver]: Analyzing ICFG sina2.c [2022-12-14 13:59:09,996 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:59:09,996 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:59:10,029 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:59:10,034 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;@2065f38d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:59:10,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:59:10,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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 13:59:10,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 13:59:10,041 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:10,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:59:10,041 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:10,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:10,045 INFO L85 PathProgramCache]: Analyzing trace with hash -228319609, now seen corresponding path program 1 times [2022-12-14 13:59:10,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:10,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364300717] [2022-12-14 13:59:10,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:10,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:10,245 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 13:59:10,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:10,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364300717] [2022-12-14 13:59:10,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364300717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:59:10,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:59:10,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:59:10,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355349344] [2022-12-14 13:59:10,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:59:10,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:59:10,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:10,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:59:10,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:59:10,273 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 13:59:10,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:59:10,315 INFO L93 Difference]: Finished difference Result 22 states and 31 transitions. [2022-12-14 13:59:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:59:10,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 13:59:10,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:59:10,324 INFO L225 Difference]: With dead ends: 22 [2022-12-14 13:59:10,325 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 13:59:10,327 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 13:59:10,330 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:59:10,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:59:10,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 13:59:10,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 13:59:10,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 13:59:10,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2022-12-14 13:59:10,361 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 8 [2022-12-14 13:59:10,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:59:10,361 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-12-14 13:59:10,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 13:59:10,362 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2022-12-14 13:59:10,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 13:59:10,362 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:10,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:59:10,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:59:10,363 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:10,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:10,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1111630449, now seen corresponding path program 1 times [2022-12-14 13:59:10,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:10,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191447218] [2022-12-14 13:59:10,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:10,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:10,446 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 13:59:10,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:10,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191447218] [2022-12-14 13:59:10,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191447218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:59:10,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:59:10,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:59:10,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86753169] [2022-12-14 13:59:10,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:59:10,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:59:10,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:10,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:59:10,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:59:10,449 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 13:59:10,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:59:10,483 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2022-12-14 13:59:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:59:10,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-12-14 13:59:10,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:59:10,484 INFO L225 Difference]: With dead ends: 24 [2022-12-14 13:59:10,484 INFO L226 Difference]: Without dead ends: 18 [2022-12-14 13:59:10,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:59:10,486 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:59:10,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:59:10,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-14 13:59:10,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2022-12-14 13:59:10,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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 13:59:10,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2022-12-14 13:59:10,494 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 9 [2022-12-14 13:59:10,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:59:10,494 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-12-14 13:59:10,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 13:59:10,495 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2022-12-14 13:59:10,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 13:59:10,495 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:10,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:59:10,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:59:10,495 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:10,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:10,496 INFO L85 PathProgramCache]: Analyzing trace with hash 141398424, now seen corresponding path program 1 times [2022-12-14 13:59:10,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:10,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578831428] [2022-12-14 13:59:10,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:10,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:11,131 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 13:59:11,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:11,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578831428] [2022-12-14 13:59:11,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578831428] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:59:11,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097198531] [2022-12-14 13:59:11,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:11,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:59:11,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:59:11,133 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:59:11,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:59:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:11,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 41 conjunts are in the unsatisfiable core [2022-12-14 13:59:11,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:59:11,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 13:59:11,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:59:11,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 13:59:11,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 13:59:11,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 13:59:11,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2022-12-14 13:59:11,584 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 13:59:11,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:59:11,811 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 13:59:11,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097198531] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:59:11,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [362654102] [2022-12-14 13:59:11,831 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 13:59:11,831 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:59:11,834 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:59:11,840 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:59:11,840 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:59:11,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:11,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:11,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:11,946 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-12-14 13:59:11,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-12-14 13:59:11,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:11,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:11,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-12-14 13:59:11,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:11,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 32 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-12-14 13:59:12,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:12,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:12,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 118 [2022-12-14 13:59:12,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:12,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:12,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:12,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:12,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:12,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:12,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:12,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:12,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:12,268 INFO L321 Elim1Store]: treesize reduction 154, result has 18.5 percent of original size [2022-12-14 13:59:12,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 35 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 25 case distinctions, treesize of input 443 treesize of output 437 [2022-12-14 13:59:12,379 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 13:59:12,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:12,428 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 13:59:12,429 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-12-14 13:59:12,483 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-12-14 13:59:12,483 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-12-14 13:59:12,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:12,541 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 13:59:12,542 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-12-14 13:59:12,593 INFO L321 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-12-14 13:59:12,593 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-12-14 13:59:12,609 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:59:13,094 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '206#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 1) |ULTIMATE.start_main_#t~mem14#1|) 1 0)) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem14#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 13:59:13,094 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:59:13,094 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:59:13,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2022-12-14 13:59:13,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753867261] [2022-12-14 13:59:13,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:59:13,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-14 13:59:13,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:13,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-14 13:59:13,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2022-12-14 13:59:13,097 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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 13:59:13,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:59:13,682 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2022-12-14 13:59:13,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 13:59:13,683 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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 11 [2022-12-14 13:59:13,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:59:13,683 INFO L225 Difference]: With dead ends: 35 [2022-12-14 13:59:13,683 INFO L226 Difference]: Without dead ends: 33 [2022-12-14 13:59:13,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 9 SyntacticMatches, 7 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=175, Invalid=1085, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 13:59:13,684 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 30 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:59:13,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 61 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:59:13,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-14 13:59:13,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 21. [2022-12-14 13:59:13,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 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 13:59:13,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2022-12-14 13:59:13,689 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 28 transitions. Word has length 11 [2022-12-14 13:59:13,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:59:13,689 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 28 transitions. [2022-12-14 13:59:13,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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 13:59:13,689 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2022-12-14 13:59:13,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 13:59:13,690 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:13,690 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:59:13,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:59:13,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:59:13,892 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:13,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:13,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1167527278, now seen corresponding path program 2 times [2022-12-14 13:59:13,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:13,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158072436] [2022-12-14 13:59:13,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:13,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:13,958 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 13:59:13,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:13,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158072436] [2022-12-14 13:59:13,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158072436] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:59:13,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97984920] [2022-12-14 13:59:13,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 13:59:13,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:59:13,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:59:13,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:59:13,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:59:14,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 13:59:14,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:59:14,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 13:59:14,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:59:14,041 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 13:59:14,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:59:14,063 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 13:59:14,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97984920] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:59:14,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1599515084] [2022-12-14 13:59:14,066 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 13:59:14,066 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:59:14,066 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:59:14,066 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:59:14,066 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:59:14,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,140 INFO L321 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-12-14 13:59:14,141 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-12-14 13:59:14,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,209 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-12-14 13:59:14,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-12-14 13:59:14,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 32 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-12-14 13:59:14,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 123 [2022-12-14 13:59:14,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,370 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:14,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:14,407 INFO L321 Elim1Store]: treesize reduction 166, result has 11.7 percent of original size [2022-12-14 13:59:14,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 43 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 24 case distinctions, treesize of input 448 treesize of output 436 [2022-12-14 13:59:14,471 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 13:59:14,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:14,514 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 13:59:14,515 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-12-14 13:59:14,578 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-12-14 13:59:14,579 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-12-14 13:59:14,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:14,632 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 13:59:14,632 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 2 case distinctions, treesize of input 31 treesize of output 34 [2022-12-14 13:59:14,686 INFO L321 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-12-14 13:59:14,686 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-12-14 13:59:14,730 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:59:15,050 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '393#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 1) |ULTIMATE.start_main_#t~mem14#1|) 1 0)) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem14#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 13:59:15,050 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:59:15,050 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:59:15,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-12-14 13:59:15,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552900085] [2022-12-14 13:59:15,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:59:15,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 13:59:15,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:15,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 13:59:15,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-12-14 13:59:15,052 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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 13:59:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:59:15,162 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2022-12-14 13:59:15,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 13:59:15,163 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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 12 [2022-12-14 13:59:15,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:59:15,164 INFO L225 Difference]: With dead ends: 44 [2022-12-14 13:59:15,164 INFO L226 Difference]: Without dead ends: 37 [2022-12-14 13:59:15,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2022-12-14 13:59:15,165 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 50 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:59:15,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 31 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:59:15,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-12-14 13:59:15,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 23. [2022-12-14 13:59:15,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 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 13:59:15,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-12-14 13:59:15,172 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 12 [2022-12-14 13:59:15,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:59:15,172 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-12-14 13:59:15,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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 13:59:15,173 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-12-14 13:59:15,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 13:59:15,173 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:15,173 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:59:15,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 13:59:15,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:59:15,375 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:15,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:15,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1934578216, now seen corresponding path program 3 times [2022-12-14 13:59:15,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:15,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370549910] [2022-12-14 13:59:15,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:15,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:15,555 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 13:59:15,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:15,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370549910] [2022-12-14 13:59:15,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370549910] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:59:15,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827630132] [2022-12-14 13:59:15,555 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 13:59:15,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:59:15,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:59:15,556 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:59:15,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 13:59:15,599 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 13:59:15,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:59:15,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 13:59:15,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:59:15,630 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 13:59:15,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:59:15,659 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 13:59:15,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827630132] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:59:15,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [918987699] [2022-12-14 13:59:15,662 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 13:59:15,662 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:59:15,662 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:59:15,662 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:59:15,663 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:59:15,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,701 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 13:59:15,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 112 [2022-12-14 13:59:15,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,770 INFO L321 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-12-14 13:59:15,770 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-12-14 13:59:15,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,841 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-12-14 13:59:15,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-12-14 13:59:15,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 118 [2022-12-14 13:59:15,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:15,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:15,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:16,036 INFO L321 Elim1Store]: treesize reduction 154, result has 18.5 percent of original size [2022-12-14 13:59:16,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 35 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 25 case distinctions, treesize of input 443 treesize of output 437 [2022-12-14 13:59:16,127 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 13:59:16,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:16,172 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-12-14 13:59:16,173 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 2 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 13:59:16,219 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-12-14 13:59:16,219 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-12-14 13:59:16,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:16,249 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 13:59:16,249 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 2 case distinctions, treesize of input 31 treesize of output 34 [2022-12-14 13:59:16,288 INFO L321 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-12-14 13:59:16,289 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-12-14 13:59:16,318 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:59:16,681 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '596#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 1) |ULTIMATE.start_main_#t~mem14#1|) 1 0)) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem14#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 13:59:16,681 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:59:16,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:59:16,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 12 [2022-12-14 13:59:16,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394863855] [2022-12-14 13:59:16,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:59:16,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 13:59:16,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:16,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 13:59:16,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2022-12-14 13:59:16,683 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 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 13:59:16,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:59:16,736 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2022-12-14 13:59:16,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:59:16,737 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 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 13 [2022-12-14 13:59:16,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:59:16,737 INFO L225 Difference]: With dead ends: 46 [2022-12-14 13:59:16,737 INFO L226 Difference]: Without dead ends: 26 [2022-12-14 13:59:16,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 21 SyntacticMatches, 9 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-12-14 13:59:16,738 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 30 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:59:16,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 22 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:59:16,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-14 13:59:16,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 16. [2022-12-14 13:59:16,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 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 13:59:16,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-12-14 13:59:16,741 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 13 [2022-12-14 13:59:16,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:59:16,742 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-12-14 13:59:16,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 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 13:59:16,742 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-12-14 13:59:16,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 13:59:16,742 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:16,742 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:59:16,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 13:59:16,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:59:16,943 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:16,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:16,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1506151399, now seen corresponding path program 4 times [2022-12-14 13:59:16,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:16,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190849085] [2022-12-14 13:59:16,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:16,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:17,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:17,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190849085] [2022-12-14 13:59:17,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190849085] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:59:17,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559840834] [2022-12-14 13:59:17,769 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 13:59:17,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:59:17,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:59:17,770 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:59:17,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 13:59:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:17,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 57 conjunts are in the unsatisfiable core [2022-12-14 13:59:17,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:59:17,833 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:59:17,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 13:59:17,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2022-12-14 13:59:17,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:17,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2022-12-14 13:59:17,924 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 33 [2022-12-14 13:59:17,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:17,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:17,961 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2022-12-14 13:59:18,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:18,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,030 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 42 [2022-12-14 13:59:18,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,076 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 0 case distinctions, treesize of input 37 treesize of output 33 [2022-12-14 13:59:18,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2022-12-14 13:59:18,176 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:18,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:59:18,637 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:18,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559840834] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:59:18,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [590596939] [2022-12-14 13:59:18,639 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 13:59:18,639 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:59:18,639 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:59:18,639 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:59:18,639 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:59:18,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,707 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-12-14 13:59:18,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-12-14 13:59:18,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 32 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-12-14 13:59:18,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-12-14 13:59:18,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 123 [2022-12-14 13:59:18,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:18,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:18,891 INFO L321 Elim1Store]: treesize reduction 166, result has 11.7 percent of original size [2022-12-14 13:59:18,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 43 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 24 case distinctions, treesize of input 448 treesize of output 436 [2022-12-14 13:59:18,959 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 13:59:18,987 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:19,003 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-12-14 13:59:19,003 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 2 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 13:59:19,058 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-12-14 13:59:19,059 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-12-14 13:59:19,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:19,107 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 13:59:19,107 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-12-14 13:59:19,153 INFO L321 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-12-14 13:59:19,153 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-12-14 13:59:19,166 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:59:19,562 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '808#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 1) |ULTIMATE.start_main_#t~mem14#1|) 1 0)) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem14#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 13:59:19,563 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:59:19,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:59:19,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 30 [2022-12-14 13:59:19,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275766404] [2022-12-14 13:59:19,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:59:19,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 13:59:19,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:19,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 13:59:19,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1067, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 13:59:19,565 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 30 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 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 13:59:22,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:59:22,397 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2022-12-14 13:59:22,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-14 13:59:22,397 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 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 14 [2022-12-14 13:59:22,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:59:22,398 INFO L225 Difference]: With dead ends: 66 [2022-12-14 13:59:22,398 INFO L226 Difference]: Without dead ends: 57 [2022-12-14 13:59:22,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=436, Invalid=2986, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 13:59:22,399 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 92 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 13:59:22,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 84 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 13:59:22,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-12-14 13:59:22,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 27. [2022-12-14 13:59:22,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 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 13:59:22,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2022-12-14 13:59:22,405 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 14 [2022-12-14 13:59:22,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:59:22,405 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2022-12-14 13:59:22,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 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 13:59:22,405 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-12-14 13:59:22,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 13:59:22,405 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:22,405 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:59:22,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 13:59:22,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:59:22,607 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:22,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:22,608 INFO L85 PathProgramCache]: Analyzing trace with hash -666372015, now seen corresponding path program 5 times [2022-12-14 13:59:22,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:22,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395455096] [2022-12-14 13:59:22,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:22,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:22,681 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 13:59:22,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:22,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395455096] [2022-12-14 13:59:22,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395455096] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:59:22,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624242102] [2022-12-14 13:59:22,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 13:59:22,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:59:22,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:59:22,682 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:59:22,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 13:59:22,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 13:59:22,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:59:22,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 13:59:22,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:59:22,783 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 13:59:22,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:59:22,818 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 13:59:22,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624242102] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:59:22,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [173054486] [2022-12-14 13:59:22,820 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 13:59:22,820 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:59:22,820 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:59:22,820 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:59:22,820 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:59:22,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:22,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:22,883 INFO L321 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-12-14 13:59:22,884 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-12-14 13:59:22,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:22,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:22,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:22,948 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-12-14 13:59:22,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-12-14 13:59:22,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:22,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 32 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-12-14 13:59:22,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:22,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:22,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 118 [2022-12-14 13:59:23,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:23,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:23,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:23,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:23,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:23,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:23,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:23,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:23,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:23,122 INFO L321 Elim1Store]: treesize reduction 154, result has 18.5 percent of original size [2022-12-14 13:59:23,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 35 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 25 case distinctions, treesize of input 443 treesize of output 437 [2022-12-14 13:59:23,197 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 13:59:23,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:23,240 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-12-14 13:59:23,241 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 2 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 13:59:23,290 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-12-14 13:59:23,290 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-12-14 13:59:23,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:23,321 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 13:59:23,321 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 2 case distinctions, treesize of input 31 treesize of output 34 [2022-12-14 13:59:23,366 INFO L321 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-12-14 13:59:23,367 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-12-14 13:59:23,397 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:59:23,795 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1104#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 1) |ULTIMATE.start_main_#t~mem14#1|) 1 0)) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem14#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 13:59:23,796 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:59:23,796 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:59:23,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2022-12-14 13:59:23,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020177274] [2022-12-14 13:59:23,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:59:23,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 13:59:23,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:23,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 13:59:23,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-12-14 13:59:23,797 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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 13:59:23,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:59:23,941 INFO L93 Difference]: Finished difference Result 61 states and 71 transitions. [2022-12-14 13:59:23,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 13:59:23,942 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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 15 [2022-12-14 13:59:23,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:59:23,942 INFO L225 Difference]: With dead ends: 61 [2022-12-14 13:59:23,942 INFO L226 Difference]: Without dead ends: 53 [2022-12-14 13:59:23,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 12 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2022-12-14 13:59:23,944 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 52 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:59:23,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 81 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:59:23,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-14 13:59:23,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 29. [2022-12-14 13:59:23,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 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 13:59:23,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2022-12-14 13:59:23,954 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 15 [2022-12-14 13:59:23,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:59:23,954 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2022-12-14 13:59:23,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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 13:59:23,954 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2022-12-14 13:59:23,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 13:59:23,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:23,955 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:59:23,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 13:59:24,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:59:24,156 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:24,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:24,157 INFO L85 PathProgramCache]: Analyzing trace with hash 648069560, now seen corresponding path program 6 times [2022-12-14 13:59:24,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:24,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182907726] [2022-12-14 13:59:24,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:24,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:25,144 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:25,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:25,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182907726] [2022-12-14 13:59:25,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182907726] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:59:25,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995582865] [2022-12-14 13:59:25,145 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 13:59:25,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:59:25,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:59:25,146 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:59:25,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 13:59:25,217 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 13:59:25,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:59:25,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 77 conjunts are in the unsatisfiable core [2022-12-14 13:59:25,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:59:25,227 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:59:25,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 13:59:25,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2022-12-14 13:59:25,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2022-12-14 13:59:25,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2022-12-14 13:59:25,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,454 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 13:59:25,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2022-12-14 13:59:25,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,538 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 13:59:25,538 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 3 case distinctions, treesize of input 70 treesize of output 73 [2022-12-14 13:59:25,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,623 INFO L321 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2022-12-14 13:59:25,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 84 [2022-12-14 13:59:25,792 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:25,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:25,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:25,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 60 [2022-12-14 13:59:25,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:25,876 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 0 case distinctions, treesize of input 75 treesize of output 61 [2022-12-14 13:59:25,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:25,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:25,944 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 0 case distinctions, treesize of input 44 treesize of output 40 [2022-12-14 13:59:26,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:26,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 13:59:26,115 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:26,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:59:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:27,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995582865] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:59:27,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [939196849] [2022-12-14 13:59:27,487 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 13:59:27,487 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:59:27,487 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:59:27,487 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:59:27,487 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:59:27,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,508 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 13:59:27,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 112 [2022-12-14 13:59:27,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,567 INFO L321 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-12-14 13:59:27,567 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-12-14 13:59:27,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,645 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-12-14 13:59:27,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-12-14 13:59:27,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 123 [2022-12-14 13:59:27,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:27,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:27,792 INFO L321 Elim1Store]: treesize reduction 166, result has 11.7 percent of original size [2022-12-14 13:59:27,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 43 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 24 case distinctions, treesize of input 448 treesize of output 436 [2022-12-14 13:59:27,857 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 13:59:27,880 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:27,893 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 13:59:27,893 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-12-14 13:59:27,942 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-12-14 13:59:27,942 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-12-14 13:59:27,968 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:59:27,983 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 13:59:27,984 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 2 case distinctions, treesize of input 31 treesize of output 34 [2022-12-14 13:59:28,039 INFO L321 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-12-14 13:59:28,039 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-12-14 13:59:28,066 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:59:28,684 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1404#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 1) |ULTIMATE.start_main_#t~mem14#1|) 1 0)) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem14#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 13:59:28,684 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:59:28,684 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:59:28,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 43 [2022-12-14 13:59:28,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510996620] [2022-12-14 13:59:28,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:59:28,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-12-14 13:59:28,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:28,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-12-14 13:59:28,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=1968, Unknown=0, NotChecked=0, Total=2256 [2022-12-14 13:59:28,687 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 43 states, 43 states have (on average 1.069767441860465) internal successors, (46), 43 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 13:59:58,983 WARN L233 SmtUtils]: Spent 7.22s on a formula simplification. DAG size of input: 138 DAG size of output: 136 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:00:26,340 WARN L233 SmtUtils]: Spent 8.60s on a formula simplification. DAG size of input: 167 DAG size of output: 163 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:00:37,883 WARN L233 SmtUtils]: Spent 9.11s on a formula simplification. DAG size of input: 165 DAG size of output: 161 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:00:48,695 WARN L233 SmtUtils]: Spent 9.42s on a formula simplification. DAG size of input: 168 DAG size of output: 164 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:00:51,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:00:51,054 INFO L93 Difference]: Finished difference Result 93 states and 113 transitions. [2022-12-14 14:00:51,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-12-14 14:00:51,055 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 1.069767441860465) internal successors, (46), 43 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) Word has length 17 [2022-12-14 14:00:51,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:00:51,056 INFO L225 Difference]: With dead ends: 93 [2022-12-14 14:00:51,056 INFO L226 Difference]: Without dead ends: 84 [2022-12-14 14:00:51,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2190 ImplicationChecksByTransitivity, 77.6s TimeCoverageRelationStatistics Valid=976, Invalid=7214, Unknown=0, NotChecked=0, Total=8190 [2022-12-14 14:00:51,057 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 113 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:00:51,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 155 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-12-14 14:00:51,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-12-14 14:00:51,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 45. [2022-12-14 14:00:51,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 44 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 14:00:51,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 58 transitions. [2022-12-14 14:00:51,073 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 58 transitions. Word has length 17 [2022-12-14 14:00:51,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:00:51,074 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 58 transitions. [2022-12-14 14:00:51,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 1.069767441860465) internal successors, (46), 43 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 14:00:51,074 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2022-12-14 14:00:51,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:00:51,075 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:00:51,075 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:00:51,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 14:00:51,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:00:51,276 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:00:51,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:00:51,277 INFO L85 PathProgramCache]: Analyzing trace with hash 238203790, now seen corresponding path program 1 times [2022-12-14 14:00:51,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:00:51,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126433372] [2022-12-14 14:00:51,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:00:51,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:00:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:00:51,985 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:00:51,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:00:51,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126433372] [2022-12-14 14:00:51,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126433372] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:00:51,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769230291] [2022-12-14 14:00:51,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:00:51,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:00:51,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:00:51,986 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:00:51,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 14:00:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:00:52,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 66 conjunts are in the unsatisfiable core [2022-12-14 14:00:52,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:00:52,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 14:00:52,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 14:00:52,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 14:00:52,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:52,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 14:00:52,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:00:52,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:52,251 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2022-12-14 14:00:52,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:52,294 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 0 case distinctions, treesize of input 51 treesize of output 35 [2022-12-14 14:00:52,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:52,384 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:00:52,384 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 0 case distinctions, treesize of input 40 treesize of output 38 [2022-12-14 14:00:52,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 25 [2022-12-14 14:00:52,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2022-12-14 14:00:52,637 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:00:52,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:00:53,466 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:00:53,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769230291] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:00:53,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1251281441] [2022-12-14 14:00:53,468 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 14:00:53,468 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:00:53,469 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:00:53,469 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:00:53,469 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:00:53,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,507 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 14:00:53,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 112 [2022-12-14 14:00:53,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,584 INFO L321 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-12-14 14:00:53,584 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-12-14 14:00:53,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,656 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-12-14 14:00:53,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-12-14 14:00:53,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 118 [2022-12-14 14:00:53,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:00:53,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:00:53,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:00:53,837 INFO L321 Elim1Store]: treesize reduction 154, result has 18.5 percent of original size [2022-12-14 14:00:53,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 35 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 25 case distinctions, treesize of input 443 treesize of output 437 [2022-12-14 14:00:53,948 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:00:53,972 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 14:00:53,972 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-12-14 14:00:54,015 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-12-14 14:00:54,015 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-12-14 14:00:54,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:00:54,066 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 14:00:54,067 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-12-14 14:00:54,117 INFO L321 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-12-14 14:00:54,117 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-12-14 14:00:54,207 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:00:55,011 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1863#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 14:00:55,011 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 14:00:55,011 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:00:55,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 39 [2022-12-14 14:00:55,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86688178] [2022-12-14 14:00:55,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 14:00:55,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-12-14 14:00:55,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:00:55,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-12-14 14:00:55,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1816, Unknown=0, NotChecked=0, Total=1980 [2022-12-14 14:00:55,014 INFO L87 Difference]: Start difference. First operand 45 states and 58 transitions. Second operand has 39 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 39 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 14:01:00,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:01:00,664 INFO L93 Difference]: Finished difference Result 94 states and 109 transitions. [2022-12-14 14:01:00,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-14 14:01:00,665 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 39 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) Word has length 17 [2022-12-14 14:01:00,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:01:00,665 INFO L225 Difference]: With dead ends: 94 [2022-12-14 14:01:00,665 INFO L226 Difference]: Without dead ends: 92 [2022-12-14 14:01:00,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1534 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=562, Invalid=4840, Unknown=0, NotChecked=0, Total=5402 [2022-12-14 14:01:00,667 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 130 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:01:00,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 115 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 14:01:00,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-12-14 14:01:00,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 49. [2022-12-14 14:01:00,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.3125) internal successors, (63), 48 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 14:01:00,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2022-12-14 14:01:00,693 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 17 [2022-12-14 14:01:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:01:00,693 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2022-12-14 14:01:00,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 39 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 14:01:00,693 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2022-12-14 14:01:00,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:01:00,694 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:01:00,694 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:01:00,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 14:01:00,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:01:00,896 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:01:00,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:01:00,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1341212043, now seen corresponding path program 7 times [2022-12-14 14:01:00,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:01:00,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593798827] [2022-12-14 14:01:00,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:01:00,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:01:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:01:01,015 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 14:01:01,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:01:01,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593798827] [2022-12-14 14:01:01,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593798827] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:01:01,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352829517] [2022-12-14 14:01:01,016 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 14:01:01,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:01:01,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:01:01,017 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:01:01,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 14:01:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:01:01,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 14:01:01,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:01:01,122 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 14:01:01,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:01:01,156 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 14:01:01,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352829517] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:01:01,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1788043399] [2022-12-14 14:01:01,158 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 14:01:01,158 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:01:01,158 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:01:01,159 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:01:01,159 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:01:01,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,226 INFO L321 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-12-14 14:01:01,226 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-12-14 14:01:01,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,286 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-12-14 14:01:01,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-12-14 14:01:01,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 32 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-12-14 14:01:01,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 123 [2022-12-14 14:01:01,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:01:01,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:01,465 INFO L321 Elim1Store]: treesize reduction 166, result has 11.7 percent of original size [2022-12-14 14:01:01,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 43 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 24 case distinctions, treesize of input 448 treesize of output 436 [2022-12-14 14:01:01,522 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:01:01,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:01:01,554 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-12-14 14:01:01,554 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 2 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 14:01:01,595 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-12-14 14:01:01,596 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-12-14 14:01:01,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:01:01,630 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 14:01:01,631 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-12-14 14:01:01,669 INFO L321 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-12-14 14:01:01,670 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-12-14 14:01:01,682 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:01:01,915 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2273#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 1) |ULTIMATE.start_main_#t~mem14#1|) 1 0)) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem14#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 14:01:01,915 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 14:01:01,915 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:01:01,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 16 [2022-12-14 14:01:01,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647583972] [2022-12-14 14:01:01,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 14:01:01,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 14:01:01,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:01:01,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 14:01:01,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-12-14 14:01:01,916 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. Second operand has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 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 14:01:02,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:01:02,002 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2022-12-14 14:01:02,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:01:02,002 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 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 17 [2022-12-14 14:01:02,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:01:02,003 INFO L225 Difference]: With dead ends: 79 [2022-12-14 14:01:02,003 INFO L226 Difference]: Without dead ends: 53 [2022-12-14 14:01:02,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 35 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2022-12-14 14:01:02,003 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 36 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:01:02,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 27 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:01:02,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-14 14:01:02,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 38. [2022-12-14 14:01:02,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 37 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 14:01:02,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2022-12-14 14:01:02,016 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 17 [2022-12-14 14:01:02,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:01:02,017 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2022-12-14 14:01:02,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 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 14:01:02,017 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2022-12-14 14:01:02,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 14:01:02,017 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:01:02,017 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:01:02,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 14:01:02,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 14:01:02,219 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:01:02,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:01:02,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1985137521, now seen corresponding path program 8 times [2022-12-14 14:01:02,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:01:02,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683584885] [2022-12-14 14:01:02,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:01:02,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:01:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:01:02,340 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 14:01:02,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:01:02,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683584885] [2022-12-14 14:01:02,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683584885] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:01:02,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839004172] [2022-12-14 14:01:02,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:01:02,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:01:02,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:01:02,342 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:01:02,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 14:01:02,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 14:01:02,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:01:02,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 14:01:02,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:01:02,476 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 14:01:02,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:01:02,518 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 14:01:02,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839004172] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:01:02,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1134539093] [2022-12-14 14:01:02,520 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 14:01:02,520 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:01:02,520 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:01:02,520 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:01:02,520 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:01:02,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,546 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 14:01:02,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 112 [2022-12-14 14:01:02,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,601 INFO L321 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-12-14 14:01:02,601 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-12-14 14:01:02,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,670 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-12-14 14:01:02,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-12-14 14:01:02,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 123 [2022-12-14 14:01:02,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:01:02,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:02,823 INFO L321 Elim1Store]: treesize reduction 166, result has 11.7 percent of original size [2022-12-14 14:01:02,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 43 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 24 case distinctions, treesize of input 448 treesize of output 436 [2022-12-14 14:01:02,887 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:01:02,911 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:01:02,927 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 14:01:02,928 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-12-14 14:01:02,974 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-12-14 14:01:02,974 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-12-14 14:01:03,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:01:03,013 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 14:01:03,013 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 2 case distinctions, treesize of input 31 treesize of output 34 [2022-12-14 14:01:03,058 INFO L321 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-12-14 14:01:03,059 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-12-14 14:01:03,089 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:01:03,372 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2603#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 1) |ULTIMATE.start_main_#t~mem14#1|) 1 0)) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem14#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 14:01:03,372 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 14:01:03,372 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:01:03,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2022-12-14 14:01:03,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556618640] [2022-12-14 14:01:03,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 14:01:03,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 14:01:03,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:01:03,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 14:01:03,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-12-14 14:01:03,374 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand has 16 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 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 14:01:03,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:01:03,503 INFO L93 Difference]: Finished difference Result 95 states and 113 transitions. [2022-12-14 14:01:03,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 14:01:03,504 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 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 19 [2022-12-14 14:01:03,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:01:03,504 INFO L225 Difference]: With dead ends: 95 [2022-12-14 14:01:03,504 INFO L226 Difference]: Without dead ends: 73 [2022-12-14 14:01:03,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 39 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2022-12-14 14:01:03,505 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 78 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:01:03,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 56 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:01:03,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-12-14 14:01:03,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 47. [2022-12-14 14:01:03,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 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 14:01:03,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 58 transitions. [2022-12-14 14:01:03,526 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 58 transitions. Word has length 19 [2022-12-14 14:01:03,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:01:03,526 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 58 transitions. [2022-12-14 14:01:03,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 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 14:01:03,526 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2022-12-14 14:01:03,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 14:01:03,527 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:01:03,527 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:01:03,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 14:01:03,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:01:03,728 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:01:03,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:01:03,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1292243271, now seen corresponding path program 9 times [2022-12-14 14:01:03,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:01:03,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169980628] [2022-12-14 14:01:03,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:01:03,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:01:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:01:05,081 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:01:05,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:01:05,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169980628] [2022-12-14 14:01:05,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169980628] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:01:05,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187718423] [2022-12-14 14:01:05,081 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 14:01:05,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:01:05,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:01:05,083 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:01:05,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 14:01:05,158 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 14:01:05,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:01:05,160 WARN L261 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 93 conjunts are in the unsatisfiable core [2022-12-14 14:01:05,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:01:05,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 14:01:05,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 14:01:05,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2022-12-14 14:01:05,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2022-12-14 14:01:05,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-12-14 14:01:05,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-12-14 14:01:05,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 57 [2022-12-14 14:01:05,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:01:05,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 59 [2022-12-14 14:01:05,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 63 [2022-12-14 14:01:05,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 64 [2022-12-14 14:01:05,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:01:05,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 64 [2022-12-14 14:01:05,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 57 [2022-12-14 14:01:05,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:01:05,766 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 0 case distinctions, treesize of input 49 treesize of output 48 [2022-12-14 14:01:05,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:05,825 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 0 case distinctions, treesize of input 37 treesize of output 33 [2022-12-14 14:01:05,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2022-12-14 14:01:05,962 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:01:05,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:01:08,963 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:01:08,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187718423] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:01:08,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1683060797] [2022-12-14 14:01:08,964 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 14:01:08,964 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:01:08,964 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:01:08,964 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:01:08,964 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:01:08,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:08,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:09,032 INFO L321 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-12-14 14:01:09,032 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-12-14 14:01:09,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:09,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:09,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:09,093 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-12-14 14:01:09,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-12-14 14:01:09,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:09,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 32 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-12-14 14:01:09,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:09,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:09,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 118 [2022-12-14 14:01:09,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:09,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:09,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:09,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:09,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:09,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:09,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:01:09,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:01:09,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:01:09,245 INFO L321 Elim1Store]: treesize reduction 154, result has 18.5 percent of original size [2022-12-14 14:01:09,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 35 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 25 case distinctions, treesize of input 443 treesize of output 437 [2022-12-14 14:01:09,311 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:01:09,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:01:09,353 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 14:01:09,353 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-12-14 14:01:09,406 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-12-14 14:01:09,407 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-12-14 14:01:09,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:01:09,444 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 14:01:09,445 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 2 case distinctions, treesize of input 31 treesize of output 34 [2022-12-14 14:01:09,490 INFO L321 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-12-14 14:01:09,490 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-12-14 14:01:09,530 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:01:11,163 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3006#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 1) |ULTIMATE.start_main_#t~mem14#1|) 1 0)) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem14#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 14:01:11,164 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 14:01:11,164 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:01:11,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 46 [2022-12-14 14:01:11,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550512293] [2022-12-14 14:01:11,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 14:01:11,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-12-14 14:01:11,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:01:11,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-12-14 14:01:11,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=2220, Unknown=0, NotChecked=0, Total=2550 [2022-12-14 14:01:11,166 INFO L87 Difference]: Start difference. First operand 47 states and 58 transitions. Second operand has 46 states, 46 states have (on average 1.065217391304348) internal successors, (49), 46 states have internal predecessors, (49), 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 14:01:27,358 WARN L233 SmtUtils]: Spent 10.70s on a formula simplification that was a NOOP. DAG size: 189 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:01:52,282 WARN L233 SmtUtils]: Spent 20.39s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:02:22,280 WARN L233 SmtUtils]: Spent 17.56s on a formula simplification that was a NOOP. DAG size: 202 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:02:50,768 WARN L233 SmtUtils]: Spent 15.08s on a formula simplification that was a NOOP. DAG size: 202 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:03:16,663 WARN L233 SmtUtils]: Spent 12.34s on a formula simplification that was a NOOP. DAG size: 189 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:03:40,122 WARN L233 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 193 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:04:01,844 WARN L233 SmtUtils]: Spent 11.88s on a formula simplification that was a NOOP. DAG size: 191 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:04:18,057 WARN L233 SmtUtils]: Spent 12.51s on a formula simplification that was a NOOP. DAG size: 193 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:04:58,127 WARN L233 SmtUtils]: Spent 34.08s on a formula simplification. DAG size of input: 241 DAG size of output: 170 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:05:40,888 WARN L233 SmtUtils]: Spent 32.70s on a formula simplification. DAG size of input: 239 DAG size of output: 168 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:06:21,286 WARN L233 SmtUtils]: Spent 33.70s on a formula simplification. DAG size of input: 242 DAG size of output: 171 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:06:32,475 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 173 DAG size of output: 107 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:06:49,408 WARN L233 SmtUtils]: Spent 12.83s on a formula simplification. DAG size of input: 196 DAG size of output: 130 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:07:06,389 WARN L233 SmtUtils]: Spent 13.36s on a formula simplification. DAG size of input: 199 DAG size of output: 133 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:07:28,290 WARN L233 SmtUtils]: Spent 10.07s on a formula simplification. DAG size of input: 188 DAG size of output: 128 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:07:42,644 WARN L233 SmtUtils]: Spent 10.77s on a formula simplification. DAG size of input: 191 DAG size of output: 131 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:07:50,449 WARN L233 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 155 DAG size of output: 103 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:08:06,894 WARN L233 SmtUtils]: Spent 12.34s on a formula simplification. DAG size of input: 178 DAG size of output: 126 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:08:24,473 WARN L233 SmtUtils]: Spent 13.50s on a formula simplification. DAG size of input: 181 DAG size of output: 129 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:08:34,635 WARN L233 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 126 DAG size of output: 123 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:08:42,215 WARN L233 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 129 DAG size of output: 126 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:08:44,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:08:44,044 INFO L93 Difference]: Finished difference Result 148 states and 182 transitions. [2022-12-14 14:08:44,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-12-14 14:08:44,044 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 1.065217391304348) internal successors, (49), 46 states have internal predecessors, (49), 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 14:08:44,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:08:44,045 INFO L225 Difference]: With dead ends: 148 [2022-12-14 14:08:44,045 INFO L226 Difference]: Without dead ends: 121 [2022-12-14 14:08:44,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 14 SyntacticMatches, 14 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2665 ImplicationChecksByTransitivity, 432.4s TimeCoverageRelationStatistics Valid=1283, Invalid=8223, Unknown=0, NotChecked=0, Total=9506 [2022-12-14 14:08:44,048 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 209 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:08:44,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 248 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 25.4s Time] [2022-12-14 14:08:44,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-12-14 14:08:44,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 75. [2022-12-14 14:08:44,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.2972972972972974) internal successors, (96), 74 states have internal predecessors, (96), 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 14:08:44,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2022-12-14 14:08:44,097 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 20 [2022-12-14 14:08:44,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:08:44,097 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2022-12-14 14:08:44,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 1.065217391304348) internal successors, (49), 46 states have internal predecessors, (49), 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 14:08:44,097 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2022-12-14 14:08:44,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 14:08:44,098 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:08:44,098 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:08:44,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 14:08:44,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:08:44,299 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:08:44,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:08:44,300 INFO L85 PathProgramCache]: Analyzing trace with hash 767483933, now seen corresponding path program 2 times [2022-12-14 14:08:44,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:08:44,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713682632] [2022-12-14 14:08:44,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:08:44,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:08:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:08:45,398 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:08:45,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:08:45,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713682632] [2022-12-14 14:08:45,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713682632] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:08:45,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715482693] [2022-12-14 14:08:45,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:08:45,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:08:45,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:08:45,399 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:08:45,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 14:08:45,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 14:08:45,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:08:45,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 66 conjunts are in the unsatisfiable core [2022-12-14 14:08:45,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:08:45,507 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 14:08:45,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:45,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 14:08:45,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:45,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:45,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:45,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-12-14 14:08:45,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:45,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 14:08:45,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:45,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 14:08:45,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:45,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:45,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 14:08:45,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:45,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:08:45,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:45,706 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2022-12-14 14:08:45,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:45,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:45,756 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 0 case distinctions, treesize of input 48 treesize of output 34 [2022-12-14 14:08:45,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:45,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:45,826 INFO L321 Elim1Store]: treesize reduction 30, result has 49.2 percent of original size [2022-12-14 14:08:45,826 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 2 case distinctions, treesize of input 44 treesize of output 57 [2022-12-14 14:08:46,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:08:46,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2022-12-14 14:08:46,284 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 14:08:46,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:08:56,088 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:08:56,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 188 treesize of output 158 [2022-12-14 14:08:56,103 WARN L837 $PredicateComparison]: unable to prove that (or (not (< 1 c_~N~0)) (forall ((v_ArrVal_597 Int) (v_arrayElimArr_1 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_343| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (store (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse4 (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse3 (store .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse3 .cse1 (+ (select .cse4 .cse1) (select (select (store .cse5 |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))))) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_343|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_597)) (.cse2 (+ c_~N~0 1))) (or (= (select .cse0 .cse1) .cse2) (< (+ |v_ULTIMATE.start_main_~i~0#1_343| 1) c_~N~0) (not (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse2))))))) is different from false [2022-12-14 14:08:58,474 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_588 Int) (v_ArrVal_597 Int) (|v_ULTIMATE.start_main_~i~0#1_351| Int) (v_arrayElimArr_1 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_343| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse1 (store (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_351|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_588)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse3 (store .cse5 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse3 .cse2 (+ (select (select (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse5 .cse2)))))) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_343|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_597))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (= .cse0 (select .cse1 .cse2)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_343|) .cse0) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_351|)) (not (< (+ |v_ULTIMATE.start_main_~i~0#1_351| 1) .cse0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_351|) .cse0) (not (< 2 .cse0))))))) is different from false [2022-12-14 14:08:58,516 INFO L321 Elim1Store]: treesize reduction 63, result has 37.6 percent of original size [2022-12-14 14:08:58,516 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 1436 treesize of output 501 [2022-12-14 14:08:58,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1009 treesize of output 925 [2022-12-14 14:08:58,545 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:08:58,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 868 treesize of output 778 [2022-12-14 14:08:58,633 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:08:58,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 488 treesize of output 510 [2022-12-14 14:09:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 7 not checked. [2022-12-14 14:09:00,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715482693] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:09:00,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1533995803] [2022-12-14 14:09:00,323 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 14:09:00,323 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:09:00,323 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:09:00,324 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:09:00,324 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:09:00,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,379 INFO L321 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-12-14 14:09:00,379 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-12-14 14:09:00,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,441 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-12-14 14:09:00,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-12-14 14:09:00,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 32 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-12-14 14:09:00,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 118 [2022-12-14 14:09:00,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:00,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:09:00,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:09:00,612 INFO L321 Elim1Store]: treesize reduction 154, result has 18.5 percent of original size [2022-12-14 14:09:00,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 35 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 25 case distinctions, treesize of input 443 treesize of output 437 [2022-12-14 14:09:00,784 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:09:00,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:09:00,814 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-12-14 14:09:00,814 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 2 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 14:09:00,862 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-12-14 14:09:00,863 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-12-14 14:09:00,886 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:09:00,903 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 14:09:00,904 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-12-14 14:09:00,949 INFO L321 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-12-14 14:09:00,949 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-12-14 14:09:01,059 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:09:01,775 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3642#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 14:09:01,775 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 14:09:01,775 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:09:01,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16, 18] total 48 [2022-12-14 14:09:01,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894599247] [2022-12-14 14:09:01,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 14:09:01,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 14:09:01,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:09:01,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 14:09:01,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=2307, Unknown=19, NotChecked=202, Total=2862 [2022-12-14 14:09:01,778 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 48 states, 48 states have (on average 1.125) internal successors, (54), 48 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 14:09:15,306 WARN L233 SmtUtils]: Spent 7.62s on a formula simplification. DAG size of input: 141 DAG size of output: 121 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:09:34,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:09:34,577 INFO L93 Difference]: Finished difference Result 109 states and 139 transitions. [2022-12-14 14:09:34,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-14 14:09:34,577 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 1.125) internal successors, (54), 48 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) Word has length 20 [2022-12-14 14:09:34,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:09:34,578 INFO L225 Difference]: With dead ends: 109 [2022-12-14 14:09:34,578 INFO L226 Difference]: Without dead ends: 107 [2022-12-14 14:09:34,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 21 SyntacticMatches, 7 SemanticMatches, 80 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2233 ImplicationChecksByTransitivity, 45.1s TimeCoverageRelationStatistics Valid=774, Invalid=5475, Unknown=79, NotChecked=314, Total=6642 [2022-12-14 14:09:34,579 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 105 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 72 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 70 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:09:34,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 68 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 376 Invalid, 25 Unknown, 70 Unchecked, 1.1s Time] [2022-12-14 14:09:34,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-12-14 14:09:34,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 84. [2022-12-14 14:09:34,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.3132530120481927) internal successors, (109), 83 states have internal predecessors, (109), 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 14:09:34,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2022-12-14 14:09:34,639 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 20 [2022-12-14 14:09:34,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:09:34,639 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2022-12-14 14:09:34,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 1.125) internal successors, (54), 48 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 14:09:34,639 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2022-12-14 14:09:34,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 14:09:34,640 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:09:34,640 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:09:34,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-14 14:09:34,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 14:09:34,841 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:09:34,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:09:34,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1241532673, now seen corresponding path program 10 times [2022-12-14 14:09:34,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:09:34,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715055640] [2022-12-14 14:09:34,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:09:34,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:09:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:09:35,022 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 14:09:35,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:09:35,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715055640] [2022-12-14 14:09:35,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715055640] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:09:35,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193743156] [2022-12-14 14:09:35,022 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 14:09:35,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:09:35,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:09:35,023 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:09:35,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 14:09:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:09:35,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 14:09:35,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:09:35,201 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 14:09:35,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:09:35,309 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 14:09:35,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193743156] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:09:35,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [106954087] [2022-12-14 14:09:35,311 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 14:09:35,311 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:09:35,311 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:09:35,311 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:09:35,311 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:09:35,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,347 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 14:09:35,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 112 [2022-12-14 14:09:35,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,437 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-12-14 14:09:35,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-12-14 14:09:35,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-12-14 14:09:35,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 123 [2022-12-14 14:09:35,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,558 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:09:35,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:35,614 INFO L321 Elim1Store]: treesize reduction 166, result has 11.7 percent of original size [2022-12-14 14:09:35,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 43 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 24 case distinctions, treesize of input 448 treesize of output 436 [2022-12-14 14:09:35,689 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:09:35,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:09:35,745 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-12-14 14:09:35,745 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 2 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 14:09:35,803 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-12-14 14:09:35,804 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-12-14 14:09:35,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:09:35,868 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 14:09:35,868 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 2 case distinctions, treesize of input 31 treesize of output 34 [2022-12-14 14:09:35,944 INFO L321 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-12-14 14:09:35,944 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-12-14 14:09:35,977 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:09:36,481 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4190#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 1) |ULTIMATE.start_main_#t~mem14#1|) 1 0)) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem14#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 14:09:36,481 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 14:09:36,481 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:09:36,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 20 [2022-12-14 14:09:36,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468090126] [2022-12-14 14:09:36,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 14:09:36,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-14 14:09:36,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:09:36,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-14 14:09:36,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2022-12-14 14:09:36,483 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 20 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 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 14:09:37,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:09:37,065 INFO L93 Difference]: Finished difference Result 155 states and 185 transitions. [2022-12-14 14:09:37,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 14:09:37,066 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 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 22 [2022-12-14 14:09:37,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:09:37,067 INFO L225 Difference]: With dead ends: 155 [2022-12-14 14:09:37,067 INFO L226 Difference]: Without dead ends: 121 [2022-12-14 14:09:37,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 44 SyntacticMatches, 10 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=233, Invalid=957, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 14:09:37,068 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 92 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:09:37,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 138 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 14:09:37,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-12-14 14:09:37,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 61. [2022-12-14 14:09:37,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 60 states have internal predecessors, (71), 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 14:09:37,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2022-12-14 14:09:37,146 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 22 [2022-12-14 14:09:37,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:09:37,146 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2022-12-14 14:09:37,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 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 14:09:37,147 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2022-12-14 14:09:37,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 14:09:37,147 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:09:37,147 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:09:37,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-14 14:09:37,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:09:37,349 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:09:37,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:09:37,350 INFO L85 PathProgramCache]: Analyzing trace with hash -651683368, now seen corresponding path program 11 times [2022-12-14 14:09:37,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:09:37,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783304430] [2022-12-14 14:09:37,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:09:37,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:09:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:09:39,265 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:09:39,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:09:39,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783304430] [2022-12-14 14:09:39,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783304430] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:09:39,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926662497] [2022-12-14 14:09:39,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:09:39,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:09:39,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:09:39,266 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:09:39,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0466eb50-4389-40dd-926b-317dc08442d8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-14 14:09:39,410 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 14:09:39,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:09:39,412 WARN L261 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 106 conjunts are in the unsatisfiable core [2022-12-14 14:09:39,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:09:39,422 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 14:09:39,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:39,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2022-12-14 14:09:39,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:39,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2022-12-14 14:09:39,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:39,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:39,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:39,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 14:09:39,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:39,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:39,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:39,698 INFO L321 Elim1Store]: treesize reduction 64, result has 28.9 percent of original size [2022-12-14 14:09:39,698 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 3 case distinctions, treesize of input 49 treesize of output 57 [2022-12-14 14:09:39,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:39,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:39,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:39,809 INFO L321 Elim1Store]: treesize reduction 94, result has 21.7 percent of original size [2022-12-14 14:09:39,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 71 [2022-12-14 14:09:40,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:09:40,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,068 INFO L321 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2022-12-14 14:09:40,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 81 [2022-12-14 14:09:40,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,211 INFO L321 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2022-12-14 14:09:40,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 83 treesize of output 76 [2022-12-14 14:09:40,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,346 INFO L321 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2022-12-14 14:09:40,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 91 treesize of output 78 [2022-12-14 14:09:40,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,465 INFO L321 Elim1Store]: treesize reduction 106, result has 0.9 percent of original size [2022-12-14 14:09:40,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 88 treesize of output 90 [2022-12-14 14:09:40,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,629 INFO L321 Elim1Store]: treesize reduction 148, result has 0.7 percent of original size [2022-12-14 14:09:40,629 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 14 case distinctions, treesize of input 99 treesize of output 102 [2022-12-14 14:09:40,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,980 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:09:40,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:40,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:09:40,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:09:41,001 INFO L321 Elim1Store]: treesize reduction 76, result has 20.8 percent of original size [2022-12-14 14:09:41,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 107 treesize of output 92 [2022-12-14 14:09:41,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:41,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:41,552 INFO L321 Elim1Store]: treesize reduction 349, result has 30.2 percent of original size [2022-12-14 14:09:41,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 170 treesize of output 251 [2022-12-14 14:09:43,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:43,419 INFO L321 Elim1Store]: treesize reduction 211, result has 35.9 percent of original size [2022-12-14 14:09:43,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 122 treesize of output 195 [2022-12-14 14:09:44,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:09:44,357 INFO L321 Elim1Store]: treesize reduction 143, result has 53.7 percent of original size [2022-12-14 14:09:44,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 116 treesize of output 243 [2022-12-14 14:10:22,170 WARN L233 SmtUtils]: Spent 15.15s on a formula simplification. DAG size of input: 1001 DAG size of output: 57 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:10:22,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:10:22,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:10:22,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:10:22,228 INFO L321 Elim1Store]: treesize reduction 47, result has 51.5 percent of original size [2022-12-14 14:10:22,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 102 [2022-12-14 14:10:22,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:10:22,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2022-12-14 14:10:22,642 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:10:22,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:10:46,214 WARN L233 SmtUtils]: Spent 8.63s on a formula simplification that was a NOOP. DAG size: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:11:01,278 WARN L233 SmtUtils]: Spent 8.55s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:11:01,298 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 44 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:11:01,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926662497] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:11:01,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [117528561] [2022-12-14 14:11:01,299 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 14:11:01,300 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:11:01,300 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:11:01,300 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:11:01,300 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:11:01,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,402 INFO L321 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-12-14 14:11:01,402 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-12-14 14:11:01,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,500 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-12-14 14:11:01,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-12-14 14:11:01,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 32 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-12-14 14:11:01,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 118 [2022-12-14 14:11:01,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:11:01,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:11:01,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:11:01,673 INFO L321 Elim1Store]: treesize reduction 154, result has 18.5 percent of original size [2022-12-14 14:11:01,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 35 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 25 case distinctions, treesize of input 443 treesize of output 437 [2022-12-14 14:11:01,779 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 14:11:01,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:11:01,813 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-12-14 14:11:01,813 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 2 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 14:11:01,869 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-12-14 14:11:01,869 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-12-14 14:11:01,897 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:11:01,923 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-12-14 14:11:01,923 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-12-14 14:11:01,996 INFO L321 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-12-14 14:11:01,996 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-12-14 14:11:02,013 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:11:06,157 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4763#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 1) |ULTIMATE.start_main_#t~mem14#1|) 1 0)) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem14#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 14:11:06,157 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 14:11:06,157 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:11:06,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 61 [2022-12-14 14:11:06,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905990957] [2022-12-14 14:11:06,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 14:11:06,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-12-14 14:11:06,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:11:06,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-12-14 14:11:06,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=365, Invalid=3923, Unknown=2, NotChecked=0, Total=4290 [2022-12-14 14:11:06,158 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand has 61 states, 61 states have (on average 1.0491803278688525) internal successors, (64), 61 states have internal predecessors, (64), 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 14:11:24,724 WARN L233 SmtUtils]: Spent 8.88s on a formula simplification. DAG size of input: 236 DAG size of output: 55 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:11:36,876 WARN L233 SmtUtils]: Spent 8.07s on a formula simplification. DAG size of input: 226 DAG size of output: 52 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:11:51,950 WARN L233 SmtUtils]: Spent 9.30s on a formula simplification. DAG size of input: 223 DAG size of output: 54 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:11:55,157 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse31 (* 8 |c_ULTIMATE.start_main_~i~0#1|))) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (+ .cse31 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse26 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse22 (select .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse24 (select .cse0 .cse3))) (let ((.cse67 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse24))) |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse4 (+ .cse31 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse33 (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0)) (.cse32 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse28 (select .cse67 .cse4))) (let ((.cse30 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse24 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse19 (store .cse0 .cse3 1)) (.cse53 (+ .cse22 .cse32)) (.cse6 (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) c_~N~0)) (.cse5 (+ c_~N~0 1)) (.cse7 (not (< 4 c_~N~0))) (.cse63 (not .cse33)) (.cse21 (< 5 c_~N~0)) (.cse17 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (exists ((|v_ULTIMATE.start_main_~i~0#1_408| Int)) (let ((.cse1 (* 8 |v_ULTIMATE.start_main_~i~0#1_408|))) (and (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_408| 1)) (= (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)) 1) (= (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| (- 8))) 1) (< |v_ULTIMATE.start_main_~i~0#1_408| c_~N~0)))) (= (select .cse0 .cse2) 1) (or (< (+ 2 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0) (forall ((v_ArrVal_773 Int) (v_ArrVal_771 Int)) (= (select (store (store .cse0 .cse3 v_ArrVal_771) .cse4 v_ArrVal_773) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse5)) (not .cse6)) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (or .cse7 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int) (|v_ULTIMATE.start_main_~i~0#1_437| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (= (let ((.cse18 (let ((.cse20 (* 8 |v_ULTIMATE.start_main_~i~0#1_437|))) (store (store .cse19 (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (+ .cse20 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse18))) (let ((.cse10 (select .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse8 (select .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse14 (select .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse15 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse14))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse13 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse14 .cse15))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17)) (.cse16 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse12 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse13 .cse14 .cse15))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse16 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse11 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse12 .cse13 .cse14 .cse15))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse16 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse8 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse11 .cse12 .cse13 .cse14 .cse15))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse11 .cse12 .cse13 .cse14 .cse15))))))))) .cse5) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_437|) c_~N~0) (not (< (+ |v_ULTIMATE.start_main_~i~0#1_437| 1) c_~N~0)))) .cse21) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (= (let ((.cse27 (select .cse30 (+ .cse31 16 |c_ULTIMATE.start_main_~a~0#1.offset|))) (.cse29 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse23 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse24 .cse27 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse23 .cse24 .cse27 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse29 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse22 .cse23 .cse24 .cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse23 .cse24 .cse25 .cse27 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse27 .cse28)))) .cse5) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0))) .cse7 .cse21) (or (= .cse5 .cse32) .cse33) (< 1 c_~N~0) (or .cse7 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (= (let ((.cse36 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse35 (select .cse30 (+ .cse36 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse34 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse24 .cse35 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse36 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse22 .cse24 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse24 .cse34 .cse35 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse34 .cse35 .cse28)))) .cse5))) .cse21) (or .cse7 (forall ((|ULTIMATE.start_main_~i~0#1| Int) (|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (= (let ((.cse46 (let ((.cse47 (* |ULTIMATE.start_main_~i~0#1| 8))) (store (store .cse0 (+ .cse47 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (+ .cse47 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (let ((.cse41 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse46))) (let ((.cse42 (select .cse41 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse37 (select .cse46 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse40 (select .cse42 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse43 (select (select (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse37 .cse40))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse44 (select (select (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse37 .cse40 .cse43))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17)) (.cse45 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse39 (select (select (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse37 .cse40 .cse43 .cse44))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse38 (select (select (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse37 .cse39 .cse40 .cse43 .cse44))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse45 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse37 .cse38 .cse39 .cse40 (select (select (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse37 .cse38 .cse39 .cse40 .cse43 .cse44))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse43 .cse44))))))))) .cse5) (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (not (< (+ |ULTIMATE.start_main_~i~0#1| 1) c_~N~0)) (< (+ 2 |ULTIMATE.start_main_~i~0#1|) c_~N~0))) .cse21) (= .cse32 1) (or .cse33 .cse7 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (= (let ((.cse48 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse53)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse51 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse48 .cse32))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17)) (.cse52 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse49 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse48 .cse51 .cse32))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse52 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse50 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse48 .cse49 .cse51 .cse32))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse52 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse22 .cse48 .cse49 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse48 .cse49 .cse50 .cse51 .cse32))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse50 .cse51 .cse32))))) .cse5))) .cse21) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (= (let ((.cse60 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse19))) (let ((.cse61 (select .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse55 (select .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse59 (select .cse19 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse58 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse57 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse58 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17)) (.cse62 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse56 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse57 .cse58 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse62 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse54 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse56 .cse57 .cse58 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse62 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse54 .cse55 .cse56 .cse57 .cse58 .cse59 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse54 .cse55 .cse56 .cse57 .cse58 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))))))))) .cse5) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0))) .cse6 .cse7 .cse63 .cse21) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= .cse22 3) (or .cse33 .cse7 (= .cse53 .cse5) .cse21) (or .cse7 .cse21 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (= (let ((.cse66 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse65 (select .cse67 (+ .cse66 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse64 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse24 .cse65))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse66 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse22 .cse64 .cse24 .cse65 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse64 .cse24 .cse65))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse5)))) (or .cse6 (= .cse5 (+ .cse22 .cse24 (select .cse67 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse7 .cse63 .cse21) (= .cse22 (+ (select .cse0 .cse17) 2))))))))) is different from true [2022-12-14 14:12:07,910 WARN L233 SmtUtils]: Spent 9.89s on a formula simplification. DAG size of input: 217 DAG size of output: 52 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:12:14,151 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse26 (* 8 |c_ULTIMATE.start_main_~i~0#1|))) (let ((.cse30 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse69 (+ .cse26 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse21 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse17 (select .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse19 (select .cse30 .cse69))) (let ((.cse68 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse19))) |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse46 (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0)) (.cse51 (select .cse30 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse23 (select .cse68 (+ .cse26 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse25 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse19 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse10 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse11 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse13 (store .cse30 .cse69 1)) (.cse53 (+ .cse17 .cse51)) (.cse31 (select .cse30 0)) (.cse63 (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) c_~N~0)) (.cse15 (+ c_~N~0 1)) (.cse0 (not (< 4 c_~N~0))) (.cse64 (not .cse46)) (.cse16 (< 5 c_~N~0))) (and (or .cse0 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int) (|v_ULTIMATE.start_main_~i~0#1_437| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (= (let ((.cse12 (let ((.cse14 (* 8 |v_ULTIMATE.start_main_~i~0#1_437|))) (store (store .cse13 (+ .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (+ .cse14 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse12))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select .cse12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse7 (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse8 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse7))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse11))) (let ((.cse6 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse7 .cse8))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10)) (.cse9 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse5 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse6 .cse7 .cse8))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse9 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse4 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse5 .cse6 .cse7 .cse8))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse9 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse1 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse4 .cse5 .cse6 .cse7 .cse8))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse4 .cse5 .cse6 .cse7 .cse8))))))))) .cse15) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_437|) c_~N~0) (not (< (+ |v_ULTIMATE.start_main_~i~0#1_437| 1) c_~N~0)))) .cse16) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (= (let ((.cse22 (select .cse25 (+ .cse26 16 |c_ULTIMATE.start_main_~a~0#1.offset|))) (.cse24 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse18 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse19 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse20 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse18 .cse19 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse24 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse17 .cse18 .cse19 .cse20 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse18 .cse19 .cse20 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse22 .cse23)))) .cse15) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0))) .cse0 .cse16) (or .cse0 (forall ((|ULTIMATE.start_main_~i~0#1| Int)) (or (= (let ((.cse29 (* |ULTIMATE.start_main_~i~0#1| 8))) (let ((.cse28 (select .cse30 (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse27 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse29 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse17 .cse27 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse27 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse28)))) .cse15) (not (< (+ |ULTIMATE.start_main_~i~0#1| 1) c_~N~0)) (< (+ 2 |ULTIMATE.start_main_~i~0#1|) c_~N~0))) .cse16) (<= .cse31 .cse15) (or .cse0 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (= (let ((.cse34 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse33 (select .cse25 (+ .cse34 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse32 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse19 .cse33 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse34 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse17 .cse19 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse19 .cse32 .cse33 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse32 .cse33 .cse23)))) .cse15))) .cse16) (or .cse0 (forall ((|ULTIMATE.start_main_~i~0#1| Int) (|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (= (let ((.cse44 (let ((.cse45 (* |ULTIMATE.start_main_~i~0#1| 8))) (store (store .cse30 (+ .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (+ .cse45 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (let ((.cse39 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse44))) (let ((.cse40 (select .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse35 (select .cse44 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse38 (select .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse41 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse38))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse11))) (let ((.cse42 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse38 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10)) (.cse43 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse37 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse38 .cse41 .cse42))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse43 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse36 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse37 .cse38 .cse41 .cse42))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse43 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse35 .cse36 .cse37 .cse38 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse36 .cse37 .cse38 .cse41 .cse42))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse41 .cse42))))))))) .cse15) (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (not (< (+ |ULTIMATE.start_main_~i~0#1| 1) c_~N~0)) (< (+ 2 |ULTIMATE.start_main_~i~0#1|) c_~N~0))) .cse16) (or .cse46 .cse0 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (= (let ((.cse47 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse53)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse11))) (let ((.cse50 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse47 .cse51))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10)) (.cse52 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse48 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse47 .cse50 .cse51))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse52 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse49 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse47 .cse48 .cse50 .cse51))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse52 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse17 .cse47 .cse48 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse47 .cse48 .cse49 .cse50 .cse51))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse49 .cse50 .cse51))))) .cse15))) .cse16) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (= (let ((.cse60 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse13))) (let ((.cse61 (select .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse55 (select .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse59 (select .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse58 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse11))) (let ((.cse57 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse58 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10)) (.cse62 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse56 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse57 .cse58 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse62 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse54 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse56 .cse57 .cse58 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse62 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse54 .cse55 .cse56 .cse57 .cse58 .cse59 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse54 .cse55 .cse56 .cse57 .cse58 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))))))))) .cse15) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0))) .cse63 .cse0 .cse64 .cse16) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (or .cse46 .cse0 (= .cse53 .cse15) .cse16) (or .cse0 .cse16 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (= (let ((.cse67 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse66 (select .cse68 (+ .cse67 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse65 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse19 .cse66))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse67 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse17 .cse65 .cse19 .cse66 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse65 .cse19 .cse66))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse15)))) (<= .cse15 .cse31) (<= (+ (div (- |c_ULTIMATE.start_main_~a~0#1.offset|) 8) 1) |c_ULTIMATE.start_main_~i~0#1|) (or .cse63 (= .cse15 (+ .cse17 .cse19 (select .cse68 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse0 .cse64 .cse16)))))))) is different from true [2022-12-14 14:12:16,202 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse31 (* 8 |c_ULTIMATE.start_main_~i~0#1|))) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (+ .cse31 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse26 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse22 (select .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse24 (select .cse0 .cse3))) (let ((.cse67 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse24))) |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse4 (+ .cse31 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse47 (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0)) (.cse46 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse28 (select .cse67 .cse4))) (let ((.cse30 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse24 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse19 (store .cse0 .cse3 1)) (.cse53 (+ .cse22 .cse46)) (.cse6 (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) c_~N~0)) (.cse5 (+ c_~N~0 1)) (.cse7 (not (< 4 c_~N~0))) (.cse63 (not .cse47)) (.cse21 (< 5 c_~N~0)) (.cse17 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (exists ((|v_ULTIMATE.start_main_~i~0#1_408| Int)) (let ((.cse1 (* 8 |v_ULTIMATE.start_main_~i~0#1_408|))) (and (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_408| 1)) (= (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)) 1) (= (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| (- 8))) 1) (< |v_ULTIMATE.start_main_~i~0#1_408| c_~N~0)))) (= (select .cse0 .cse2) 1) (or (< (+ 2 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0) (forall ((v_ArrVal_773 Int) (v_ArrVal_771 Int)) (= (select (store (store .cse0 .cse3 v_ArrVal_771) .cse4 v_ArrVal_773) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse5)) (not .cse6)) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (or .cse7 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int) (|v_ULTIMATE.start_main_~i~0#1_437| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (= (let ((.cse18 (let ((.cse20 (* 8 |v_ULTIMATE.start_main_~i~0#1_437|))) (store (store .cse19 (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (+ .cse20 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse18))) (let ((.cse10 (select .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse8 (select .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse14 (select .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse15 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse14))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse13 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse14 .cse15))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17)) (.cse16 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse12 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse13 .cse14 .cse15))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse16 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse11 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse12 .cse13 .cse14 .cse15))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse16 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse8 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse11 .cse12 .cse13 .cse14 .cse15))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse11 .cse12 .cse13 .cse14 .cse15))))))))) .cse5) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_437|) c_~N~0) (not (< (+ |v_ULTIMATE.start_main_~i~0#1_437| 1) c_~N~0)))) .cse21) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (= (let ((.cse27 (select .cse30 (+ .cse31 16 |c_ULTIMATE.start_main_~a~0#1.offset|))) (.cse29 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse23 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse24 .cse27 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse23 .cse24 .cse27 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse29 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse22 .cse23 .cse24 .cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse23 .cse24 .cse25 .cse27 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse27 .cse28)))) .cse5) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0))) .cse7 .cse21) (< 1 c_~N~0) (or .cse7 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (= (let ((.cse34 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse33 (select .cse30 (+ .cse34 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse32 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse24 .cse33 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse34 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse22 .cse24 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse24 .cse32 .cse33 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse32 .cse33 .cse28)))) .cse5))) .cse21) (or .cse7 (forall ((|ULTIMATE.start_main_~i~0#1| Int) (|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (= (let ((.cse44 (let ((.cse45 (* |ULTIMATE.start_main_~i~0#1| 8))) (store (store .cse0 (+ .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (+ .cse45 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (let ((.cse39 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse44))) (let ((.cse40 (select .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse35 (select .cse44 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse38 (select .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse41 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse38))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse42 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse38 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17)) (.cse43 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse37 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse38 .cse41 .cse42))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse43 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse36 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse37 .cse38 .cse41 .cse42))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse43 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse35 .cse36 .cse37 .cse38 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse36 .cse37 .cse38 .cse41 .cse42))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse41 .cse42))))))))) .cse5) (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (not (< (+ |ULTIMATE.start_main_~i~0#1| 1) c_~N~0)) (< (+ 2 |ULTIMATE.start_main_~i~0#1|) c_~N~0))) .cse21) (= .cse46 1) (or .cse47 .cse7 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (= (let ((.cse48 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse53)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse51 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse48 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17)) (.cse52 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse49 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse48 .cse51 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse52 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse50 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse48 .cse49 .cse51 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse52 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse22 .cse48 .cse49 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse48 .cse49 .cse50 .cse51 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse50 .cse51 .cse46))))) .cse5))) .cse21) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (= (let ((.cse60 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse19))) (let ((.cse61 (select .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse55 (select .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse59 (select .cse19 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse58 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse57 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse58 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17)) (.cse62 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse56 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse57 .cse58 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse62 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse54 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse56 .cse57 .cse58 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse62 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse54 .cse55 .cse56 .cse57 .cse58 .cse59 (select (select (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse54 .cse55 .cse56 .cse57 .cse58 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))))))))) .cse5) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0))) .cse6 .cse7 .cse63 .cse21) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= .cse22 3) (or .cse47 .cse7 (= .cse53 .cse5) .cse21) (or .cse7 .cse21 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (= (let ((.cse66 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse65 (select .cse67 (+ .cse66 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse64 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse24 .cse65))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse66 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse22 .cse64 .cse24 .cse65 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse64 .cse24 .cse65))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse5)))) (or .cse6 (= .cse5 (+ .cse22 .cse24 (select .cse67 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse7 .cse63 .cse21) (= .cse22 (+ (select .cse0 .cse17) 2))))))))) is different from true [2022-12-14 14:12:19,651 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse39 (* 8 |c_ULTIMATE.start_main_~i~0#1|))) (let ((.cse30 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse36 (+ .cse39 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse21 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse17 (select .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse19 (select .cse30 .cse36))) (let ((.cse37 (+ .cse17 .cse19))) (let ((.cse71 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse37)) |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse38 (+ .cse39 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse32 (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0)) (.cse31 (select .cse30 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse23 (select .cse71 .cse38))) (let ((.cse25 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse19 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse26 (+ .cse39 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse10 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse11 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse13 (store .cse30 .cse36 1)) (.cse56 (+ .cse17 .cse31)) (.cse66 (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) c_~N~0)) (.cse15 (+ c_~N~0 1)) (.cse0 (not (< 4 c_~N~0))) (.cse67 (not .cse32)) (.cse16 (< 5 c_~N~0))) (and (or .cse0 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int) (|v_ULTIMATE.start_main_~i~0#1_437| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (= (let ((.cse12 (let ((.cse14 (* 8 |v_ULTIMATE.start_main_~i~0#1_437|))) (store (store .cse13 (+ .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (+ .cse14 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse12))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select .cse12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse7 (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse8 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse7))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse11))) (let ((.cse6 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse7 .cse8))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10)) (.cse9 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse5 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse6 .cse7 .cse8))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse9 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse4 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse5 .cse6 .cse7 .cse8))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse9 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse1 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse4 .cse5 .cse6 .cse7 .cse8))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse4 .cse5 .cse6 .cse7 .cse8))))))))) .cse15) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_437|) c_~N~0) (not (< (+ |v_ULTIMATE.start_main_~i~0#1_437| 1) c_~N~0)))) .cse16) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (= (let ((.cse22 (select .cse25 .cse26)) (.cse24 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse18 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse19 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse20 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse18 .cse19 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse24 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse17 .cse18 .cse19 .cse20 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse18 .cse19 .cse20 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse22 .cse23)))) .cse15) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0))) .cse0 .cse16) (or .cse0 (forall ((|ULTIMATE.start_main_~i~0#1| Int)) (or (= (let ((.cse29 (* |ULTIMATE.start_main_~i~0#1| 8))) (let ((.cse28 (select .cse30 (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse27 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse29 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse17 .cse27 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse27 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse28)))) .cse15) (not (< (+ |ULTIMATE.start_main_~i~0#1| 1) c_~N~0)) (< (+ 2 |ULTIMATE.start_main_~i~0#1|) c_~N~0))) .cse16) (or (= .cse15 .cse31) .cse32) (or .cse0 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (= (let ((.cse35 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse34 (select .cse25 (+ .cse35 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse33 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse19 .cse34 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse35 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse17 .cse19 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse19 .cse33 .cse34 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse33 .cse34 .cse23)))) .cse15))) .cse16) (or (< (+ 5 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0) (not (< (+ |c_ULTIMATE.start_main_~i~0#1| 4) c_~N~0)) (forall ((v_ArrVal_773 Int) (v_ArrVal_771 Int) (v_ArrVal_770 Int) (v_ArrVal_768 Int)) (= (select (store (store (store (store (store .cse30 .cse36 .cse37) .cse38 v_ArrVal_768) .cse26 v_ArrVal_770) (+ .cse39 |c_ULTIMATE.start_main_~a~0#1.offset| 24) v_ArrVal_771) (+ .cse39 32 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_773) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse15))) (or .cse0 (forall ((|ULTIMATE.start_main_~i~0#1| Int) (|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (= (let ((.cse49 (let ((.cse50 (* |ULTIMATE.start_main_~i~0#1| 8))) (store (store .cse30 (+ .cse50 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (+ .cse50 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (let ((.cse44 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse49))) (let ((.cse45 (select .cse44 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse40 (select .cse49 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse43 (select .cse45 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse46 (select (select (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse43))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse11))) (let ((.cse47 (select (select (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse43 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10)) (.cse48 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse42 (select (select (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse43 .cse46 .cse47))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse48 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse41 (select (select (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse42 .cse43 .cse46 .cse47))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse48 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse40 .cse41 .cse42 .cse43 (select (select (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse41 .cse42 .cse43 .cse46 .cse47))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse46 .cse47))))))))) .cse15) (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (not (< (+ |ULTIMATE.start_main_~i~0#1| 1) c_~N~0)) (< (+ 2 |ULTIMATE.start_main_~i~0#1|) c_~N~0))) .cse16) (or .cse32 .cse0 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (= (let ((.cse51 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse56)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse11))) (let ((.cse54 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse51 .cse31))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10)) (.cse55 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse52 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse51 .cse54 .cse31))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse55 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse53 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse51 .cse52 .cse54 .cse31))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse55 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse17 .cse51 .cse52 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse51 .cse52 .cse53 .cse54 .cse31))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse53 .cse54 .cse31))))) .cse15))) .cse16) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (= (let ((.cse63 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse13))) (let ((.cse64 (select .cse63 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse58 (select .cse64 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse62 (select .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse61 (select (select (store .cse63 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse64 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse62))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse11))) (let ((.cse60 (select (select (store .cse63 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse64 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse61 .cse62))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10)) (.cse65 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse59 (select (select (store .cse63 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse64 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse60 .cse61 .cse62))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse65 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse57 (select (select (store .cse63 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse64 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse59 .cse60 .cse61 .cse62))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse65 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse57 .cse58 .cse59 .cse60 .cse61 .cse62 (select (select (store .cse63 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse64 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse57 .cse58 .cse59 .cse60 .cse61 .cse62))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))))))))) .cse15) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0))) .cse66 .cse0 .cse67 .cse16) (or (forall ((v_ArrVal_773 Int)) (= (select (store .cse30 .cse36 v_ArrVal_773) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse15)) .cse66 .cse67) (or .cse32 .cse0 (= .cse56 .cse15) .cse16) (or .cse0 .cse16 (forall ((|v_ULTIMATE.start_main_~i~0#1_431| Int)) (or (not (< (+ |v_ULTIMATE.start_main_~i~0#1_431| 1) c_~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_431|) c_~N~0) (= (let ((.cse70 (* 8 |v_ULTIMATE.start_main_~i~0#1_431|))) (let ((.cse69 (select .cse71 (+ .cse70 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse68 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse19 .cse69))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse70 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse17 .cse68 .cse19 .cse69 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse68 .cse19 .cse69))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse15)))) (or .cse66 (= .cse15 (+ .cse17 .cse19 (select .cse71 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse0 .cse67 .cse16))))))))) is different from true [2022-12-14 14:12:39,351 WARN L233 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 231 DAG size of output: 116 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:12:51,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-12-14 14:13:30,419 WARN L233 SmtUtils]: Spent 34.88s on a formula simplification. DAG size of input: 223 DAG size of output: 73 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)