./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba --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 64bit --witnessprinter.graph.data.programhash 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a --- 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-b5237d8 [2022-11-22 02:36:43,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:36:43,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:36:43,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:36:43,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:36:43,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:36:43,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:36:43,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:36:43,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:36:43,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:36:43,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:36:43,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:36:43,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:36:43,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:36:43,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:36:43,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:36:43,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:36:43,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:36:43,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:36:43,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:36:43,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:36:43,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:36:43,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:36:43,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:36:43,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:36:43,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:36:43,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:36:43,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:36:43,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:36:43,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:36:43,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:36:43,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:36:43,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:36:43,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:36:43,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:36:43,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:36:43,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:36:43,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:36:43,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:36:43,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:36:43,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:36:43,610 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:36:43,653 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:36:43,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:36:43,654 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:36:43,654 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:36:43,655 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:36:43,655 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:36:43,656 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:36:43,656 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:36:43,656 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:36:43,656 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:36:43,657 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:36:43,658 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:36:43,658 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:36:43,658 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:36:43,658 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:36:43,659 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:36:43,659 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:36:43,659 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:36:43,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:36:43,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:36:43,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:36:43,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:36:43,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:36:43,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:36:43,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:36:43,662 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:36:43,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:36:43,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:36:43,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:36:43,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:36:43,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:36:43,664 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:36:43,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:36:43,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:36:43,665 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:36:43,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:36:43,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:36:43,666 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:36:43,666 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_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a [2022-11-22 02:36:43,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:36:43,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:36:43,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:36:43,976 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:36:43,977 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:36:43,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2022-11-22 02:36:46,937 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:36:47,358 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:36:47,360 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2022-11-22 02:36:47,395 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/data/f2311d93c/e495cd1c96c4461fa64b57d6c2b8bfa9/FLAGabed80359 [2022-11-22 02:36:47,407 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/data/f2311d93c/e495cd1c96c4461fa64b57d6c2b8bfa9 [2022-11-22 02:36:47,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:36:47,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:36:47,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:36:47,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:36:47,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:36:47,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:36:47" (1/1) ... [2022-11-22 02:36:47,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@452a0d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:47, skipping insertion in model container [2022-11-22 02:36:47,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:36:47" (1/1) ... [2022-11-22 02:36:47,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:36:47,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:36:48,260 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_4449576e-0142-458e-83d3-763648ba0298/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2022-11-22 02:36:48,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:36:48,341 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:36:48,578 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_4449576e-0142-458e-83d3-763648ba0298/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2022-11-22 02:36:48,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:36:48,633 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:36:48,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:48 WrapperNode [2022-11-22 02:36:48,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:36:48,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:36:48,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:36:48,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:36:48,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:48" (1/1) ... [2022-11-22 02:36:48,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:48" (1/1) ... [2022-11-22 02:36:48,763 INFO L138 Inliner]: procedures = 77, calls = 264, calls flagged for inlining = 29, calls inlined = 26, statements flattened = 743 [2022-11-22 02:36:48,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:36:48,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:36:48,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:36:48,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:36:48,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:48" (1/1) ... [2022-11-22 02:36:48,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:48" (1/1) ... [2022-11-22 02:36:48,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:48" (1/1) ... [2022-11-22 02:36:48,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:48" (1/1) ... [2022-11-22 02:36:48,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:48" (1/1) ... [2022-11-22 02:36:48,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:48" (1/1) ... [2022-11-22 02:36:48,848 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:48" (1/1) ... [2022-11-22 02:36:48,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:48" (1/1) ... [2022-11-22 02:36:48,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:36:48,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:36:48,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:36:48,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:36:48,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:48" (1/1) ... [2022-11-22 02:36:48,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:36:48,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:36:48,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:36:48,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:36:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_init [2022-11-22 02:36:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_init [2022-11-22 02:36:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:36:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-22 02:36:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-22 02:36:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:36:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-11-22 02:36:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-11-22 02:36:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_exit [2022-11-22 02:36:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_exit [2022-11-22 02:36:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-22 02:36:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-22 02:36:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:36:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:36:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-22 02:36:48,932 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-22 02:36:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:36:48,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:36:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-22 02:36:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-22 02:36:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:36:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-22 02:36:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-22 02:36:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:36:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 02:36:48,934 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 02:36:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:36:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 02:36:48,935 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 02:36:48,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-11-22 02:36:48,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-11-22 02:36:48,935 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-22 02:36:48,935 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-22 02:36:48,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-11-22 02:36:48,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-11-22 02:36:48,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:36:48,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:36:48,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:36:48,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:36:49,250 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:36:49,252 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:36:49,455 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-11-22 02:36:49,480 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 02:36:50,344 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2022-11-22 02:36:50,345 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2022-11-22 02:36:50,365 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:36:50,676 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:36:50,677 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-22 02:36:50,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:36:50 BoogieIcfgContainer [2022-11-22 02:36:50,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:36:50,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:36:50,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:36:50,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:36:50,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:36:47" (1/3) ... [2022-11-22 02:36:50,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5139342f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:36:50, skipping insertion in model container [2022-11-22 02:36:50,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:48" (2/3) ... [2022-11-22 02:36:50,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5139342f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:36:50, skipping insertion in model container [2022-11-22 02:36:50,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:36:50" (3/3) ... [2022-11-22 02:36:50,697 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2022-11-22 02:36:50,718 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:36:50,718 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:36:50,795 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:36:50,804 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;@4e6c1721, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:36:50,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:36:50,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 81 states have internal predecessors, (101), 29 states have call successors, (29), 14 states have call predecessors, (29), 13 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-22 02:36:50,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 02:36:50,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:50,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:36:50,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:36:50,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:50,831 INFO L85 PathProgramCache]: Analyzing trace with hash -622630613, now seen corresponding path program 1 times [2022-11-22 02:36:50,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:50,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259164319] [2022-11-22 02:36:50,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:50,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:51,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:51,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:51,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259164319] [2022-11-22 02:36:51,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259164319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:51,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:51,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:36:51,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964800886] [2022-11-22 02:36:51,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:51,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:36:51,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:51,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:36:51,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:36:51,396 INFO L87 Difference]: Start difference. First operand has 117 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 81 states have internal predecessors, (101), 29 states have call successors, (29), 14 states have call predecessors, (29), 13 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:36:53,775 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 [] [2022-11-22 02:36:53,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:53,805 INFO L93 Difference]: Finished difference Result 312 states and 427 transitions. [2022-11-22 02:36:53,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:36:53,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-22 02:36:53,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:53,824 INFO L225 Difference]: With dead ends: 312 [2022-11-22 02:36:53,824 INFO L226 Difference]: Without dead ends: 193 [2022-11-22 02:36:53,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:36:53,835 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 109 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:53,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 244 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 51 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 02:36:53,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-11-22 02:36:53,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 188. [2022-11-22 02:36:53,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 123 states have (on average 1.2601626016260163) internal successors, (155), 128 states have internal predecessors, (155), 42 states have call successors, (42), 23 states have call predecessors, (42), 22 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-22 02:36:53,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 235 transitions. [2022-11-22 02:36:53,926 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 235 transitions. Word has length 10 [2022-11-22 02:36:53,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:53,927 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 235 transitions. [2022-11-22 02:36:53,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:36:53,927 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 235 transitions. [2022-11-22 02:36:53,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:36:53,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:53,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:36:53,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:36:53,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:36:53,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:53,934 INFO L85 PathProgramCache]: Analyzing trace with hash -2121801523, now seen corresponding path program 1 times [2022-11-22 02:36:53,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:53,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488340811] [2022-11-22 02:36:53,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:53,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:54,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:54,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488340811] [2022-11-22 02:36:54,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488340811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:54,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:54,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:36:54,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525117197] [2022-11-22 02:36:54,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:54,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:36:54,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:54,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:36:54,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:36:54,206 INFO L87 Difference]: Start difference. First operand 188 states and 235 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:36:56,544 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 [] [2022-11-22 02:36:56,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:56,570 INFO L93 Difference]: Finished difference Result 447 states and 556 transitions. [2022-11-22 02:36:56,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:36:56,571 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-22 02:36:56,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:56,574 INFO L225 Difference]: With dead ends: 447 [2022-11-22 02:36:56,576 INFO L226 Difference]: Without dead ends: 259 [2022-11-22 02:36:56,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:36:56,582 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 90 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:56,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 236 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 02:36:56,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-11-22 02:36:56,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 253. [2022-11-22 02:36:56,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 166 states have (on average 1.2409638554216869) internal successors, (206), 171 states have internal predecessors, (206), 55 states have call successors, (55), 32 states have call predecessors, (55), 31 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2022-11-22 02:36:56,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 312 transitions. [2022-11-22 02:36:56,638 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 312 transitions. Word has length 11 [2022-11-22 02:36:56,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:56,638 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 312 transitions. [2022-11-22 02:36:56,639 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:36:56,639 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 312 transitions. [2022-11-22 02:36:56,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-22 02:36:56,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:56,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:36:56,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:36:56,642 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:36:56,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:56,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1600977370, now seen corresponding path program 1 times [2022-11-22 02:36:56,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:56,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573888670] [2022-11-22 02:36:56,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:56,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:56,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:56,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573888670] [2022-11-22 02:36:56,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573888670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:56,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:56,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:36:56,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773906592] [2022-11-22 02:36:56,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:56,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:36:56,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:56,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:36:56,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:36:56,944 INFO L87 Difference]: Start difference. First operand 253 states and 312 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 02:36:59,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:01,150 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 [] [2022-11-22 02:37:01,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:01,176 INFO L93 Difference]: Finished difference Result 581 states and 746 transitions. [2022-11-22 02:37:01,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:37:01,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2022-11-22 02:37:01,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:01,179 INFO L225 Difference]: With dead ends: 581 [2022-11-22 02:37:01,179 INFO L226 Difference]: Without dead ends: 332 [2022-11-22 02:37:01,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:37:01,181 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 110 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:01,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 296 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 117 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-22 02:37:01,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-11-22 02:37:01,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 300. [2022-11-22 02:37:01,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 213 states have (on average 1.2910798122065728) internal successors, (275), 218 states have internal predecessors, (275), 55 states have call successors, (55), 32 states have call predecessors, (55), 31 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2022-11-22 02:37:01,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 381 transitions. [2022-11-22 02:37:01,215 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 381 transitions. Word has length 36 [2022-11-22 02:37:01,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:01,216 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 381 transitions. [2022-11-22 02:37:01,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 02:37:01,216 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 381 transitions. [2022-11-22 02:37:01,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-22 02:37:01,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:01,218 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:01,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:37:01,219 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:01,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:01,219 INFO L85 PathProgramCache]: Analyzing trace with hash -652415193, now seen corresponding path program 1 times [2022-11-22 02:37:01,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:01,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122973522] [2022-11-22 02:37:01,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:01,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 02:37:02,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:02,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122973522] [2022-11-22 02:37:02,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122973522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:02,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:02,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:37:02,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372190273] [2022-11-22 02:37:02,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:02,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:37:02,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:02,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:37:02,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:37:02,309 INFO L87 Difference]: Start difference. First operand 300 states and 381 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 02:37:04,945 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 [] [2022-11-22 02:37:05,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:05,112 INFO L93 Difference]: Finished difference Result 535 states and 684 transitions. [2022-11-22 02:37:05,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:37:05,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2022-11-22 02:37:05,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:05,121 INFO L225 Difference]: With dead ends: 535 [2022-11-22 02:37:05,121 INFO L226 Difference]: Without dead ends: 314 [2022-11-22 02:37:05,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:37:05,123 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 162 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:05,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 343 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 111 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-22 02:37:05,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-11-22 02:37:05,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 218. [2022-11-22 02:37:05,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 152 states have (on average 1.2763157894736843) internal successors, (194), 156 states have internal predecessors, (194), 42 states have call successors, (42), 24 states have call predecessors, (42), 23 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-22 02:37:05,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 274 transitions. [2022-11-22 02:37:05,163 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 274 transitions. Word has length 54 [2022-11-22 02:37:05,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:05,164 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 274 transitions. [2022-11-22 02:37:05,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 02:37:05,165 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 274 transitions. [2022-11-22 02:37:05,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-22 02:37:05,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:05,169 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:05,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:37:05,173 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:05,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:05,174 INFO L85 PathProgramCache]: Analyzing trace with hash 991392068, now seen corresponding path program 1 times [2022-11-22 02:37:05,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:05,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541169175] [2022-11-22 02:37:05,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:05,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:06,101 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-22 02:37:06,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:06,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541169175] [2022-11-22 02:37:06,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541169175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:06,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:06,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:37:06,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283993982] [2022-11-22 02:37:06,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:06,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:37:06,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:06,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:37:06,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:37:06,104 INFO L87 Difference]: Start difference. First operand 218 states and 274 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-22 02:37:09,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:12,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:13,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:15,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:15,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:15,171 INFO L93 Difference]: Finished difference Result 469 states and 599 transitions. [2022-11-22 02:37:15,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:37:15,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2022-11-22 02:37:15,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:15,175 INFO L225 Difference]: With dead ends: 469 [2022-11-22 02:37:15,175 INFO L226 Difference]: Without dead ends: 466 [2022-11-22 02:37:15,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:37:15,176 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 279 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:15,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 584 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 316 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2022-11-22 02:37:15,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-11-22 02:37:15,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 414. [2022-11-22 02:37:15,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 291 states have (on average 1.2817869415807561) internal successors, (373), 296 states have internal predecessors, (373), 78 states have call successors, (78), 45 states have call predecessors, (78), 44 states have return successors, (76), 72 states have call predecessors, (76), 74 states have call successors, (76) [2022-11-22 02:37:15,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 527 transitions. [2022-11-22 02:37:15,230 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 527 transitions. Word has length 58 [2022-11-22 02:37:15,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:15,233 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 527 transitions. [2022-11-22 02:37:15,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-22 02:37:15,234 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 527 transitions. [2022-11-22 02:37:15,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-22 02:37:15,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:15,242 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:15,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:37:15,242 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:15,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:15,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1782380856, now seen corresponding path program 1 times [2022-11-22 02:37:15,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:15,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040083292] [2022-11-22 02:37:15,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:15,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:15,501 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 02:37:15,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:15,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040083292] [2022-11-22 02:37:15,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040083292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:15,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:15,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:37:15,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960997331] [2022-11-22 02:37:15,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:15,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:37:15,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:15,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:37:15,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:37:15,504 INFO L87 Difference]: Start difference. First operand 414 states and 527 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-22 02:37:17,912 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 [] [2022-11-22 02:37:17,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:17,967 INFO L93 Difference]: Finished difference Result 716 states and 916 transitions. [2022-11-22 02:37:17,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:37:17,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 65 [2022-11-22 02:37:17,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:17,972 INFO L225 Difference]: With dead ends: 716 [2022-11-22 02:37:17,972 INFO L226 Difference]: Without dead ends: 294 [2022-11-22 02:37:17,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:37:17,981 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 39 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:17,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 435 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 02:37:17,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-11-22 02:37:18,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 281. [2022-11-22 02:37:18,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 194 states have (on average 1.268041237113402) internal successors, (246), 199 states have internal predecessors, (246), 59 states have call successors, (59), 28 states have call predecessors, (59), 27 states have return successors, (58), 53 states have call predecessors, (58), 55 states have call successors, (58) [2022-11-22 02:37:18,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 363 transitions. [2022-11-22 02:37:18,017 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 363 transitions. Word has length 65 [2022-11-22 02:37:18,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:18,019 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 363 transitions. [2022-11-22 02:37:18,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-22 02:37:18,019 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 363 transitions. [2022-11-22 02:37:18,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-22 02:37:18,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:18,023 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:18,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:37:18,024 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:18,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:18,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1245582827, now seen corresponding path program 1 times [2022-11-22 02:37:18,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:18,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121217462] [2022-11-22 02:37:18,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:18,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:19,558 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-22 02:37:19,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:19,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121217462] [2022-11-22 02:37:19,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121217462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:19,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:19,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:37:19,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412864097] [2022-11-22 02:37:19,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:19,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:37:19,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:19,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:37:19,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:37:19,563 INFO L87 Difference]: Start difference. First operand 281 states and 363 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-22 02:37:21,998 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 [] [2022-11-22 02:37:22,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:22,410 INFO L93 Difference]: Finished difference Result 544 states and 713 transitions. [2022-11-22 02:37:22,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:37:22,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 73 [2022-11-22 02:37:22,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:22,423 INFO L225 Difference]: With dead ends: 544 [2022-11-22 02:37:22,423 INFO L226 Difference]: Without dead ends: 539 [2022-11-22 02:37:22,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:37:22,424 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 222 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:22,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 477 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 240 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-22 02:37:22,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-11-22 02:37:22,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 516. [2022-11-22 02:37:22,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 361 states have (on average 1.2770083102493075) internal successors, (461), 366 states have internal predecessors, (461), 106 states have call successors, (106), 49 states have call predecessors, (106), 48 states have return successors, (112), 100 states have call predecessors, (112), 102 states have call successors, (112) [2022-11-22 02:37:22,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 679 transitions. [2022-11-22 02:37:22,465 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 679 transitions. Word has length 73 [2022-11-22 02:37:22,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:22,466 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 679 transitions. [2022-11-22 02:37:22,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-22 02:37:22,467 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 679 transitions. [2022-11-22 02:37:22,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-22 02:37:22,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:22,468 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:22,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:37:22,468 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:22,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:22,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1222856429, now seen corresponding path program 1 times [2022-11-22 02:37:22,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:22,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694745639] [2022-11-22 02:37:22,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:22,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:22,848 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-22 02:37:22,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:22,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694745639] [2022-11-22 02:37:22,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694745639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:22,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:22,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:37:22,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18731937] [2022-11-22 02:37:22,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:22,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:37:22,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:22,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:37:22,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:37:22,851 INFO L87 Difference]: Start difference. First operand 516 states and 679 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-22 02:37:25,091 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 [] [2022-11-22 02:37:25,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:25,138 INFO L93 Difference]: Finished difference Result 875 states and 1164 transitions. [2022-11-22 02:37:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:37:25,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2022-11-22 02:37:25,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:25,142 INFO L225 Difference]: With dead ends: 875 [2022-11-22 02:37:25,142 INFO L226 Difference]: Without dead ends: 402 [2022-11-22 02:37:25,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:37:25,144 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 5 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:25,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 220 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:37:25,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-11-22 02:37:25,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2022-11-22 02:37:25,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 279 states have (on average 1.2508960573476702) internal successors, (349), 286 states have internal predecessors, (349), 84 states have call successors, (84), 40 states have call predecessors, (84), 38 states have return successors, (84), 75 states have call predecessors, (84), 80 states have call successors, (84) [2022-11-22 02:37:25,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 517 transitions. [2022-11-22 02:37:25,182 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 517 transitions. Word has length 72 [2022-11-22 02:37:25,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:25,182 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 517 transitions. [2022-11-22 02:37:25,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-22 02:37:25,183 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 517 transitions. [2022-11-22 02:37:25,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-22 02:37:25,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:25,184 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:25,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:37:25,184 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:25,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:25,185 INFO L85 PathProgramCache]: Analyzing trace with hash 620899000, now seen corresponding path program 1 times [2022-11-22 02:37:25,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:25,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93740029] [2022-11-22 02:37:25,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:25,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-22 02:37:26,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:26,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93740029] [2022-11-22 02:37:26,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93740029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:26,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:26,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:37:26,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978202507] [2022-11-22 02:37:26,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:26,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:37:26,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:26,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:37:26,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:37:26,105 INFO L87 Difference]: Start difference. First operand 402 states and 517 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-22 02:37:28,459 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 [] [2022-11-22 02:37:28,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:28,692 INFO L93 Difference]: Finished difference Result 435 states and 553 transitions. [2022-11-22 02:37:28,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:37:28,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 74 [2022-11-22 02:37:28,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:28,697 INFO L225 Difference]: With dead ends: 435 [2022-11-22 02:37:28,697 INFO L226 Difference]: Without dead ends: 432 [2022-11-22 02:37:28,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:37:28,698 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 128 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:28,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 316 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 95 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-11-22 02:37:28,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-11-22 02:37:28,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 423. [2022-11-22 02:37:28,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 295 states have (on average 1.2372881355932204) internal successors, (365), 301 states have internal predecessors, (365), 86 states have call successors, (86), 43 states have call predecessors, (86), 41 states have return successors, (86), 78 states have call predecessors, (86), 82 states have call successors, (86) [2022-11-22 02:37:28,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 537 transitions. [2022-11-22 02:37:28,744 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 537 transitions. Word has length 74 [2022-11-22 02:37:28,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:28,745 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 537 transitions. [2022-11-22 02:37:28,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-22 02:37:28,745 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 537 transitions. [2022-11-22 02:37:28,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-22 02:37:28,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:28,752 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:28,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:37:28,752 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:28,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:28,753 INFO L85 PathProgramCache]: Analyzing trace with hash 2067878112, now seen corresponding path program 1 times [2022-11-22 02:37:28,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:28,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383433741] [2022-11-22 02:37:28,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:28,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:29,394 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-22 02:37:29,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:29,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383433741] [2022-11-22 02:37:29,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383433741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:29,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:29,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:37:29,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495735544] [2022-11-22 02:37:29,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:29,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:37:29,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:29,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:37:29,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:37:29,397 INFO L87 Difference]: Start difference. First operand 423 states and 537 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-22 02:37:32,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:34,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:35,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:37,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:39,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:39,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:39,365 INFO L93 Difference]: Finished difference Result 1181 states and 1517 transitions. [2022-11-22 02:37:39,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 02:37:39,366 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 75 [2022-11-22 02:37:39,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:39,371 INFO L225 Difference]: With dead ends: 1181 [2022-11-22 02:37:39,371 INFO L226 Difference]: Without dead ends: 907 [2022-11-22 02:37:39,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:37:39,373 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 285 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 134 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:39,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 344 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 541 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2022-11-22 02:37:39,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2022-11-22 02:37:39,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 844. [2022-11-22 02:37:39,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 590 states have (on average 1.2779661016949153) internal successors, (754), 604 states have internal predecessors, (754), 171 states have call successors, (171), 86 states have call predecessors, (171), 82 states have return successors, (175), 153 states have call predecessors, (175), 166 states have call successors, (175) [2022-11-22 02:37:39,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1100 transitions. [2022-11-22 02:37:39,446 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1100 transitions. Word has length 75 [2022-11-22 02:37:39,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:39,446 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1100 transitions. [2022-11-22 02:37:39,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-22 02:37:39,447 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1100 transitions. [2022-11-22 02:37:39,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-22 02:37:39,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:39,448 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:39,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:37:39,448 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:39,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:39,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1653355349, now seen corresponding path program 1 times [2022-11-22 02:37:39,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:39,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578744618] [2022-11-22 02:37:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:39,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:39,770 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 02:37:39,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:39,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578744618] [2022-11-22 02:37:39,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578744618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:39,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:39,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:37:39,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928504544] [2022-11-22 02:37:39,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:39,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:37:39,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:39,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:37:39,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:37:39,773 INFO L87 Difference]: Start difference. First operand 844 states and 1100 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 02:37:42,096 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 [] [2022-11-22 02:37:42,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:42,258 INFO L93 Difference]: Finished difference Result 1103 states and 1393 transitions. [2022-11-22 02:37:42,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:37:42,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 82 [2022-11-22 02:37:42,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:42,265 INFO L225 Difference]: With dead ends: 1103 [2022-11-22 02:37:42,265 INFO L226 Difference]: Without dead ends: 1088 [2022-11-22 02:37:42,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:37:42,266 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 166 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:42,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 345 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 02:37:42,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-11-22 02:37:42,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 994. [2022-11-22 02:37:42,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 706 states have (on average 1.2436260623229463) internal successors, (878), 718 states have internal predecessors, (878), 177 states have call successors, (177), 116 states have call predecessors, (177), 110 states have return successors, (181), 159 states have call predecessors, (181), 172 states have call successors, (181) [2022-11-22 02:37:42,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1236 transitions. [2022-11-22 02:37:42,350 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1236 transitions. Word has length 82 [2022-11-22 02:37:42,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:42,350 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1236 transitions. [2022-11-22 02:37:42,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 02:37:42,350 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1236 transitions. [2022-11-22 02:37:42,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-22 02:37:42,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:42,352 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:42,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:37:42,352 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:42,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:42,353 INFO L85 PathProgramCache]: Analyzing trace with hash -777482010, now seen corresponding path program 1 times [2022-11-22 02:37:42,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:42,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767617361] [2022-11-22 02:37:42,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:42,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:42,741 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 02:37:42,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:42,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767617361] [2022-11-22 02:37:42,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767617361] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:37:42,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632519091] [2022-11-22 02:37:42,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:42,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:37:42,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:37:42,750 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:37:42,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:37:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:43,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:37:43,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:37:43,592 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 02:37:43,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:37:43,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632519091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:43,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:37:43,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-22 02:37:43,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229004241] [2022-11-22 02:37:43,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:43,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:37:43,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:43,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:37:43,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:37:43,595 INFO L87 Difference]: Start difference. First operand 994 states and 1236 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-22 02:37:45,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:47,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:47,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:47,875 INFO L93 Difference]: Finished difference Result 1398 states and 1737 transitions. [2022-11-22 02:37:47,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:37:47,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 85 [2022-11-22 02:37:47,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:47,879 INFO L225 Difference]: With dead ends: 1398 [2022-11-22 02:37:47,879 INFO L226 Difference]: Without dead ends: 509 [2022-11-22 02:37:47,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:37:47,882 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 37 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:47,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 254 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-22 02:37:47,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-11-22 02:37:47,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2022-11-22 02:37:47,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 352 states have (on average 1.15625) internal successors, (407), 358 states have internal predecessors, (407), 93 states have call successors, (93), 67 states have call predecessors, (93), 63 states have return successors, (93), 83 states have call predecessors, (93), 88 states have call successors, (93) [2022-11-22 02:37:47,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 593 transitions. [2022-11-22 02:37:47,928 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 593 transitions. Word has length 85 [2022-11-22 02:37:47,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:47,929 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 593 transitions. [2022-11-22 02:37:47,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-22 02:37:47,929 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 593 transitions. [2022-11-22 02:37:47,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-22 02:37:47,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:47,931 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:47,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:37:48,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 02:37:48,140 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:48,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:48,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1489385697, now seen corresponding path program 1 times [2022-11-22 02:37:48,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:48,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954208754] [2022-11-22 02:37:48,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:48,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:48,615 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-22 02:37:48,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:48,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954208754] [2022-11-22 02:37:48,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954208754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:48,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:48,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:37:48,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619687592] [2022-11-22 02:37:48,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:48,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:37:48,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:48,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:37:48,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:37:48,619 INFO L87 Difference]: Start difference. First operand 509 states and 593 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-22 02:37:50,866 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 [] [2022-11-22 02:37:50,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:50,924 INFO L93 Difference]: Finished difference Result 711 states and 831 transitions. [2022-11-22 02:37:50,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:37:50,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2022-11-22 02:37:50,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:50,927 INFO L225 Difference]: With dead ends: 711 [2022-11-22 02:37:50,927 INFO L226 Difference]: Without dead ends: 322 [2022-11-22 02:37:50,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:37:50,929 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 5 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:50,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 218 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 02:37:50,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-11-22 02:37:50,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2022-11-22 02:37:50,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 222 states have (on average 1.1306306306306306) internal successors, (251), 225 states have internal predecessors, (251), 60 states have call successors, (60), 43 states have call predecessors, (60), 39 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2022-11-22 02:37:50,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 366 transitions. [2022-11-22 02:37:50,960 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 366 transitions. Word has length 98 [2022-11-22 02:37:50,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:50,960 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 366 transitions. [2022-11-22 02:37:50,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-22 02:37:50,961 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 366 transitions. [2022-11-22 02:37:50,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-22 02:37:50,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:50,962 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:50,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 02:37:50,962 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:50,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:50,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1476036548, now seen corresponding path program 1 times [2022-11-22 02:37:50,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:50,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728012289] [2022-11-22 02:37:50,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:50,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:52,555 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-22 02:37:52,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:52,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728012289] [2022-11-22 02:37:52,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728012289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:52,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:52,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:37:52,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867372096] [2022-11-22 02:37:52,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:52,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:37:52,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:52,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:37:52,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:37:52,559 INFO L87 Difference]: Start difference. First operand 322 states and 366 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-22 02:37:55,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:56,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:58,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:37:59,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:59,271 INFO L93 Difference]: Finished difference Result 352 states and 393 transitions. [2022-11-22 02:37:59,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:37:59,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 100 [2022-11-22 02:37:59,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:59,274 INFO L225 Difference]: With dead ends: 352 [2022-11-22 02:37:59,274 INFO L226 Difference]: Without dead ends: 327 [2022-11-22 02:37:59,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:37:59,275 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 208 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 75 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:59,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 188 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 314 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-22 02:37:59,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-11-22 02:37:59,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 323. [2022-11-22 02:37:59,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 222 states have (on average 1.1081081081081081) internal successors, (246), 225 states have internal predecessors, (246), 59 states have call successors, (59), 45 states have call predecessors, (59), 41 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2022-11-22 02:37:59,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 359 transitions. [2022-11-22 02:37:59,310 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 359 transitions. Word has length 100 [2022-11-22 02:37:59,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:59,310 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 359 transitions. [2022-11-22 02:37:59,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-22 02:37:59,311 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 359 transitions. [2022-11-22 02:37:59,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-22 02:37:59,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:59,312 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:59,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 02:37:59,313 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:59,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:59,313 INFO L85 PathProgramCache]: Analyzing trace with hash -205328133, now seen corresponding path program 1 times [2022-11-22 02:37:59,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:59,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577918150] [2022-11-22 02:37:59,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:59,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:38:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:00,373 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-22 02:38:00,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:38:00,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577918150] [2022-11-22 02:38:00,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577918150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:38:00,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:38:00,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:38:00,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020939078] [2022-11-22 02:38:00,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:38:00,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:38:00,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:38:00,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:38:00,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:38:00,378 INFO L87 Difference]: Start difference. First operand 323 states and 359 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 02:38:02,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:38:04,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:38:06,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:38:07,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:38:07,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:38:07,567 INFO L93 Difference]: Finished difference Result 330 states and 363 transitions. [2022-11-22 02:38:07,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:38:07,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 123 [2022-11-22 02:38:07,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:38:07,569 INFO L225 Difference]: With dead ends: 330 [2022-11-22 02:38:07,569 INFO L226 Difference]: Without dead ends: 269 [2022-11-22 02:38:07,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:38:07,571 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 38 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:38:07,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 384 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 94 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-11-22 02:38:07,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-22 02:38:07,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2022-11-22 02:38:07,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 180 states have (on average 1.1055555555555556) internal successors, (199), 183 states have internal predecessors, (199), 51 states have call successors, (51), 38 states have call predecessors, (51), 35 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2022-11-22 02:38:07,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 296 transitions. [2022-11-22 02:38:07,600 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 296 transitions. Word has length 123 [2022-11-22 02:38:07,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:38:07,601 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 296 transitions. [2022-11-22 02:38:07,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 02:38:07,601 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 296 transitions. [2022-11-22 02:38:07,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-22 02:38:07,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:38:07,604 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:38:07,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 02:38:07,604 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:38:07,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:38:07,605 INFO L85 PathProgramCache]: Analyzing trace with hash 2120968796, now seen corresponding path program 1 times [2022-11-22 02:38:07,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:38:07,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966475133] [2022-11-22 02:38:07,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:07,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:38:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-11-22 02:38:10,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:38:10,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966475133] [2022-11-22 02:38:10,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966475133] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:38:10,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865147073] [2022-11-22 02:38:10,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:10,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:38:10,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:38:10,542 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:38:10,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4449576e-0142-458e-83d3-763648ba0298/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:38:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:11,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 2421 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-22 02:38:11,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:38:12,198 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 5 treesize of output 3 [2022-11-22 02:38:12,449 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 31 proven. 19 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-22 02:38:12,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:38:14,159 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 30 proven. 7 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-22 02:38:14,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865147073] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:38:14,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1323929181] [2022-11-22 02:38:14,184 INFO L159 IcfgInterpreter]: Started Sifa with 102 locations of interest [2022-11-22 02:38:14,185 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:38:14,190 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:38:14,196 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:38:14,196 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:38:15,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1608 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 266 [2022-11-22 02:38:15,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1452 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 241 [2022-11-22 02:38:15,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 636 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 156 [2022-11-22 02:38:15,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 121 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 61 [2022-11-22 02:38:16,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1055 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 201 [2022-11-22 02:38:23,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-22 02:38:23,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 02:38:44,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 02:38:44,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 02:38:59,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 02:38:59,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 02:39:01,704 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 [2022-11-22 02:39:01,724 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 15 treesize of output 1 [2022-11-22 02:39:01,746 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 [2022-11-22 02:39:01,816 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:39:17,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 02:39:17,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 02:39:31,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 02:39:32,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 02:39:33,806 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 [2022-11-22 02:39:33,829 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 15 treesize of output 1 [2022-11-22 02:39:33,857 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 11 treesize of output 7 [2022-11-22 02:39:34,151 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 13 treesize of output 9 [2022-11-22 02:39:34,171 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 13 treesize of output 9 [2022-11-22 02:39:34,188 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 19 treesize of output 1 [2022-11-22 02:39:34,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 46 [2022-11-22 02:39:34,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 40 [2022-11-22 02:39:34,365 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 24 treesize of output 9 [2022-11-22 02:39:34,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:39:34,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,855 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-22 02:39:34,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 13 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 59 [2022-11-22 02:39:34,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:34,981 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:39:34,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 65 [2022-11-22 02:39:35,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,068 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:39:35,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 65 [2022-11-22 02:39:35,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,167 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:39:35,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 85 [2022-11-22 02:39:35,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,286 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:39:35,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,596 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-22 02:39:35,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 69 treesize of output 57 [2022-11-22 02:39:35,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:35,737 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:39:35,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 36 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 101 treesize of output 99 [2022-11-22 02:39:36,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:36,502 INFO L217 Elim1Store]: Index analysis took 249 ms