./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS --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 afcb5021e5e481beab65460a6812c8dbe401f7b06cf3fcadf18504395cd90d4a --- 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-8393723 [2022-11-19 07:53:13,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:53:13,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:53:13,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:53:13,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:53:13,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:53:13,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:53:13,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:53:13,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:53:13,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:53:13,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:53:13,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:53:13,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:53:13,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:53:13,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:53:13,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:53:13,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:53:13,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:53:13,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:53:13,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:53:13,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:53:13,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:53:13,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:53:13,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:53:13,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:53:13,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:53:13,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:53:13,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:53:13,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:53:13,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:53:13,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:53:13,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:53:13,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:53:13,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:53:13,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:53:13,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:53:13,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:53:13,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:53:13,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:53:13,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:53:13,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:53:13,571 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:53:13,611 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:53:13,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:53:13,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:53:13,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:53:13,614 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:53:13,614 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:53:13,614 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:53:13,615 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:53:13,615 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:53:13,615 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:53:13,616 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:53:13,617 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:53:13,617 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:53:13,617 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:53:13,617 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:53:13,618 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:53:13,618 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:53:13,618 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:53:13,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:53:13,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:53:13,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:53:13,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:53:13,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:53:13,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:53:13,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:53:13,621 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:53:13,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:53:13,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:53:13,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:53:13,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:53:13,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:53:13,623 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:53:13,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:53:13,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:53:13,624 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:53:13,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:53:13,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:53:13,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:53:13,625 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_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afcb5021e5e481beab65460a6812c8dbe401f7b06cf3fcadf18504395cd90d4a [2022-11-19 07:53:13,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:53:13,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:53:13,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:53:13,953 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:53:13,954 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:53:13,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2022-11-19 07:53:14,024 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/data/582e592e1/f98401c01346422e97e10f76d8cabb12/FLAG9eac78935 [2022-11-19 07:53:14,874 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:53:14,875 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2022-11-19 07:53:14,913 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/data/582e592e1/f98401c01346422e97e10f76d8cabb12/FLAG9eac78935 [2022-11-19 07:53:15,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/data/582e592e1/f98401c01346422e97e10f76d8cabb12 [2022-11-19 07:53:15,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:53:15,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:53:15,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:53:15,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:53:15,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:53:15,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:15" (1/1) ... [2022-11-19 07:53:15,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@677ea35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:15, skipping insertion in model container [2022-11-19 07:53:15,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:15" (1/1) ... [2022-11-19 07:53:15,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:53:15,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:53:16,797 WARN L234 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_adf587f8-0dfe-4783-bc93-bc59067dcf48/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i[136556,136569] [2022-11-19 07:53:16,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:53:16,913 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:53:17,160 WARN L234 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_adf587f8-0dfe-4783-bc93-bc59067dcf48/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i[136556,136569] [2022-11-19 07:53:17,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:53:17,312 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:53:17,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:17 WrapperNode [2022-11-19 07:53:17,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:53:17,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:53:17,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:53:17,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:53:17,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:17" (1/1) ... [2022-11-19 07:53:17,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:17" (1/1) ... [2022-11-19 07:53:17,482 INFO L138 Inliner]: procedures = 173, calls = 870, calls flagged for inlining = 50, calls inlined = 47, statements flattened = 2086 [2022-11-19 07:53:17,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:53:17,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:53:17,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:53:17,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:53:17,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:17" (1/1) ... [2022-11-19 07:53:17,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:17" (1/1) ... [2022-11-19 07:53:17,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:17" (1/1) ... [2022-11-19 07:53:17,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:17" (1/1) ... [2022-11-19 07:53:17,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:17" (1/1) ... [2022-11-19 07:53:17,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:17" (1/1) ... [2022-11-19 07:53:17,627 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:17" (1/1) ... [2022-11-19 07:53:17,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:17" (1/1) ... [2022-11-19 07:53:17,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:53:17,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:53:17,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:53:17,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:53:17,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:17" (1/1) ... [2022-11-19 07:53:17,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:53:17,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:17,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:53:17,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:53:17,754 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-19 07:53:17,755 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-19 07:53:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure pci_bus_alloc_resource [2022-11-19 07:53:17,755 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_bus_alloc_resource [2022-11-19 07:53:17,756 INFO L130 BoogieDeclarations]: Found specification of procedure add_interval [2022-11-19 07:53:17,756 INFO L138 BoogieDeclarations]: Found implementation of procedure add_interval [2022-11-19 07:53:17,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:53:17,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:53:17,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:53:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:53:17,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:53:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure sub_interval [2022-11-19 07:53:17,757 INFO L138 BoogieDeclarations]: Found implementation of procedure sub_interval [2022-11-19 07:53:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:53:17,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:53:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_find_mem_region [2022-11-19 07:53:17,758 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_find_mem_region [2022-11-19 07:53:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:53:17,758 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:53:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure free_region [2022-11-19 07:53:17,758 INFO L138 BoogieDeclarations]: Found implementation of procedure free_region [2022-11-19 07:53:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2022-11-19 07:53:17,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2022-11-19 07:53:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:53:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:53:17,759 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:53:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure __nonstatic_adjust_io_region [2022-11-19 07:53:17,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __nonstatic_adjust_io_region [2022-11-19 07:53:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:53:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:53:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 07:53:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 07:53:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_6 [2022-11-19 07:53:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_6 [2022-11-19 07:53:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_release_resource_db [2022-11-19 07:53:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_release_resource_db [2022-11-19 07:53:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure do_mem_probe [2022-11-19 07:53:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure do_mem_probe [2022-11-19 07:53:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_make_resource [2022-11-19 07:53:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_make_resource [2022-11-19 07:53:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:53:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:53:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_init [2022-11-19 07:53:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_init [2022-11-19 07:53:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_find_io [2022-11-19 07:53:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_find_io [2022-11-19 07:53:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 07:53:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 07:53:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:53:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:53:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:53:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-19 07:53:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-19 07:53:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 07:53:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 07:53:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_sysfs_add_rsrc [2022-11-19 07:53:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_sysfs_add_rsrc [2022-11-19 07:53:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:53:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure static_init [2022-11-19 07:53:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure static_init [2022-11-19 07:53:17,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:53:17,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:53:17,769 INFO L130 BoogieDeclarations]: Found specification of procedure do_validate_mem [2022-11-19 07:53:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure do_validate_mem [2022-11-19 07:53:17,769 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_resource [2022-11-19 07:53:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_resource [2022-11-19 07:53:17,769 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_nonstatic_validate_mem [2022-11-19 07:53:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_nonstatic_validate_mem [2022-11-19 07:53:17,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:53:17,770 INFO L130 BoogieDeclarations]: Found specification of procedure static_find_io [2022-11-19 07:53:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure static_find_io [2022-11-19 07:53:17,771 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-11-19 07:53:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-11-19 07:53:17,771 INFO L130 BoogieDeclarations]: Found specification of procedure show_mem_db [2022-11-19 07:53:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure show_mem_db [2022-11-19 07:53:17,772 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_io [2022-11-19 07:53:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_io [2022-11-19 07:53:17,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:53:17,772 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 07:53:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 07:53:17,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:53:17,772 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:53:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:53:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 07:53:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 07:53:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:53:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:53:17,775 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-19 07:53:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-19 07:53:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:53:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-11-19 07:53:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-11-19 07:53:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_memory [2022-11-19 07:53:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_memory [2022-11-19 07:53:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_resource [2022-11-19 07:53:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_resource [2022-11-19 07:53:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:53:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:53:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2022-11-19 07:53:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2022-11-19 07:53:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure claim_region [2022-11-19 07:53:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_region [2022-11-19 07:53:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2022-11-19 07:53:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2022-11-19 07:53:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure show_io_db [2022-11-19 07:53:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure show_io_db [2022-11-19 07:53:18,332 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:53:18,336 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:53:18,705 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:53:20,466 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:53:20,910 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:53:20,911 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:53:20,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:20 BoogieIcfgContainer [2022-11-19 07:53:20,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:53:20,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:53:20,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:53:20,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:53:20,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:53:15" (1/3) ... [2022-11-19 07:53:20,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34569253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:20, skipping insertion in model container [2022-11-19 07:53:20,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:17" (2/3) ... [2022-11-19 07:53:20,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34569253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:20, skipping insertion in model container [2022-11-19 07:53:20,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:20" (3/3) ... [2022-11-19 07:53:20,933 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2022-11-19 07:53:20,954 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:53:20,954 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:53:21,060 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:53:21,067 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;@582e37bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:53:21,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:53:21,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 655 states, 430 states have (on average 1.416279069767442) internal successors, (609), 447 states have internal predecessors, (609), 177 states have call successors, (177), 47 states have call predecessors, (177), 46 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) [2022-11-19 07:53:21,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-19 07:53:21,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:21,110 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:21,111 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:21,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:21,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1671073022, now seen corresponding path program 1 times [2022-11-19 07:53:21,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:21,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057805921] [2022-11-19 07:53:21,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:21,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:22,227 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-11-19 07:53:22,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:22,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057805921] [2022-11-19 07:53:22,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057805921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:22,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:22,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:22,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282832883] [2022-11-19 07:53:22,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:22,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:22,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:22,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:22,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:22,268 INFO L87 Difference]: Start difference. First operand has 655 states, 430 states have (on average 1.416279069767442) internal successors, (609), 447 states have internal predecessors, (609), 177 states have call successors, (177), 47 states have call predecessors, (177), 46 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-19 07:53:23,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:23,391 INFO L93 Difference]: Finished difference Result 1834 states and 2720 transitions. [2022-11-19 07:53:23,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:23,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 192 [2022-11-19 07:53:23,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:23,423 INFO L225 Difference]: With dead ends: 1834 [2022-11-19 07:53:23,423 INFO L226 Difference]: Without dead ends: 1206 [2022-11-19 07:53:23,432 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 [2022-11-19 07:53:23,435 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 819 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:23,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 1819 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 07:53:23,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-11-19 07:53:23,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1202. [2022-11-19 07:53:23,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 814 states have (on average 1.404176904176904) internal successors, (1143), 822 states have internal predecessors, (1143), 297 states have call successors, (297), 91 states have call predecessors, (297), 90 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2022-11-19 07:53:23,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1732 transitions. [2022-11-19 07:53:23,672 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1732 transitions. Word has length 192 [2022-11-19 07:53:23,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:23,675 INFO L495 AbstractCegarLoop]: Abstraction has 1202 states and 1732 transitions. [2022-11-19 07:53:23,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-19 07:53:23,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1732 transitions. [2022-11-19 07:53:23,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-19 07:53:23,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:23,691 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:23,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:53:23,692 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:23,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:23,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1111235232, now seen corresponding path program 1 times [2022-11-19 07:53:23,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:23,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198628388] [2022-11-19 07:53:23,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:23,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:24,174 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-11-19 07:53:24,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:24,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198628388] [2022-11-19 07:53:24,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198628388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:24,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:24,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:24,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720286709] [2022-11-19 07:53:24,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:24,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:24,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:24,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:24,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:24,178 INFO L87 Difference]: Start difference. First operand 1202 states and 1732 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-19 07:53:25,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:25,128 INFO L93 Difference]: Finished difference Result 3448 states and 4954 transitions. [2022-11-19 07:53:25,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:25,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 195 [2022-11-19 07:53:25,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:25,144 INFO L225 Difference]: With dead ends: 3448 [2022-11-19 07:53:25,144 INFO L226 Difference]: Without dead ends: 2295 [2022-11-19 07:53:25,149 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 [2022-11-19 07:53:25,150 INFO L413 NwaCegarLoop]: 954 mSDtfsCounter, 863 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:25,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 1702 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 07:53:25,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2022-11-19 07:53:25,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2283. [2022-11-19 07:53:25,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 1557 states have (on average 1.409762363519589) internal successors, (2195), 1570 states have internal predecessors, (2195), 545 states have call successors, (545), 181 states have call predecessors, (545), 180 states have return successors, (540), 539 states have call predecessors, (540), 540 states have call successors, (540) [2022-11-19 07:53:25,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 3280 transitions. [2022-11-19 07:53:25,269 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 3280 transitions. Word has length 195 [2022-11-19 07:53:25,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:25,271 INFO L495 AbstractCegarLoop]: Abstraction has 2283 states and 3280 transitions. [2022-11-19 07:53:25,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-19 07:53:25,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 3280 transitions. [2022-11-19 07:53:25,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-19 07:53:25,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:25,275 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:25,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:53:25,276 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:25,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:25,276 INFO L85 PathProgramCache]: Analyzing trace with hash 65976611, now seen corresponding path program 1 times [2022-11-19 07:53:25,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:25,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705900712] [2022-11-19 07:53:25,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:25,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:25,680 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-11-19 07:53:25,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:25,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705900712] [2022-11-19 07:53:25,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705900712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:25,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:25,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:25,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289818792] [2022-11-19 07:53:25,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:25,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:25,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:25,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:25,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:25,690 INFO L87 Difference]: Start difference. First operand 2283 states and 3280 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 07:53:26,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:26,259 INFO L93 Difference]: Finished difference Result 2285 states and 3281 transitions. [2022-11-19 07:53:26,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:26,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 194 [2022-11-19 07:53:26,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:26,276 INFO L225 Difference]: With dead ends: 2285 [2022-11-19 07:53:26,278 INFO L226 Difference]: Without dead ends: 2282 [2022-11-19 07:53:26,282 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 [2022-11-19 07:53:26,289 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 862 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:26,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 824 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 07:53:26,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2022-11-19 07:53:26,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2282. [2022-11-19 07:53:26,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 1557 states have (on average 1.4091201027617213) internal successors, (2194), 1569 states have internal predecessors, (2194), 544 states have call successors, (544), 181 states have call predecessors, (544), 180 states have return successors, (540), 539 states have call predecessors, (540), 540 states have call successors, (540) [2022-11-19 07:53:26,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 3278 transitions. [2022-11-19 07:53:26,427 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 3278 transitions. Word has length 194 [2022-11-19 07:53:26,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:26,430 INFO L495 AbstractCegarLoop]: Abstraction has 2282 states and 3278 transitions. [2022-11-19 07:53:26,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 07:53:26,431 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 3278 transitions. [2022-11-19 07:53:26,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-19 07:53:26,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:26,436 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:26,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:53:26,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:26,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:26,441 INFO L85 PathProgramCache]: Analyzing trace with hash 583424345, now seen corresponding path program 1 times [2022-11-19 07:53:26,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:26,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567030377] [2022-11-19 07:53:26,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:26,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:26,844 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-11-19 07:53:26,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:26,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567030377] [2022-11-19 07:53:26,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567030377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:26,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:26,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:26,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654539892] [2022-11-19 07:53:26,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:26,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:26,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:26,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:26,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:26,848 INFO L87 Difference]: Start difference. First operand 2282 states and 3278 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-19 07:53:28,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:28,100 INFO L93 Difference]: Finished difference Result 6629 states and 9497 transitions. [2022-11-19 07:53:28,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:28,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 197 [2022-11-19 07:53:28,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:28,125 INFO L225 Difference]: With dead ends: 6629 [2022-11-19 07:53:28,125 INFO L226 Difference]: Without dead ends: 4396 [2022-11-19 07:53:28,134 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 [2022-11-19 07:53:28,141 INFO L413 NwaCegarLoop]: 982 mSDtfsCounter, 850 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:28,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1728 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 07:53:28,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2022-11-19 07:53:28,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 4384. [2022-11-19 07:53:28,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4384 states, 3003 states have (on average 1.4119214119214119) internal successors, (4240), 3025 states have internal predecessors, (4240), 1020 states have call successors, (1020), 361 states have call predecessors, (1020), 360 states have return successors, (1016), 1013 states have call predecessors, (1016), 1016 states have call successors, (1016) [2022-11-19 07:53:28,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4384 states to 4384 states and 6276 transitions. [2022-11-19 07:53:28,463 INFO L78 Accepts]: Start accepts. Automaton has 4384 states and 6276 transitions. Word has length 197 [2022-11-19 07:53:28,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:28,464 INFO L495 AbstractCegarLoop]: Abstraction has 4384 states and 6276 transitions. [2022-11-19 07:53:28,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-19 07:53:28,464 INFO L276 IsEmpty]: Start isEmpty. Operand 4384 states and 6276 transitions. [2022-11-19 07:53:28,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-19 07:53:28,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:28,468 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:28,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:53:28,468 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:28,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:28,469 INFO L85 PathProgramCache]: Analyzing trace with hash 2044984103, now seen corresponding path program 1 times [2022-11-19 07:53:28,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:28,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868082099] [2022-11-19 07:53:28,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:28,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:28,783 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-11-19 07:53:28,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:28,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868082099] [2022-11-19 07:53:28,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868082099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:28,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:28,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:28,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420028141] [2022-11-19 07:53:28,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:28,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:28,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:28,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:28,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:28,786 INFO L87 Difference]: Start difference. First operand 4384 states and 6276 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 07:53:29,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:29,492 INFO L93 Difference]: Finished difference Result 4386 states and 6277 transitions. [2022-11-19 07:53:29,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:29,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 195 [2022-11-19 07:53:29,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:29,517 INFO L225 Difference]: With dead ends: 4386 [2022-11-19 07:53:29,517 INFO L226 Difference]: Without dead ends: 4383 [2022-11-19 07:53:29,521 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 [2022-11-19 07:53:29,521 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 859 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:29,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 822 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 07:53:29,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4383 states. [2022-11-19 07:53:29,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4383 to 4383. [2022-11-19 07:53:29,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4383 states, 3003 states have (on average 1.4115884115884116) internal successors, (4239), 3024 states have internal predecessors, (4239), 1019 states have call successors, (1019), 361 states have call predecessors, (1019), 360 states have return successors, (1016), 1013 states have call predecessors, (1016), 1016 states have call successors, (1016) [2022-11-19 07:53:29,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4383 states to 4383 states and 6274 transitions. [2022-11-19 07:53:29,884 INFO L78 Accepts]: Start accepts. Automaton has 4383 states and 6274 transitions. Word has length 195 [2022-11-19 07:53:29,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:29,885 INFO L495 AbstractCegarLoop]: Abstraction has 4383 states and 6274 transitions. [2022-11-19 07:53:29,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 07:53:29,886 INFO L276 IsEmpty]: Start isEmpty. Operand 4383 states and 6274 transitions. [2022-11-19 07:53:29,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-19 07:53:29,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:29,889 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:29,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:53:29,889 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:29,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:29,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1030288218, now seen corresponding path program 1 times [2022-11-19 07:53:29,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:29,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085146410] [2022-11-19 07:53:29,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:29,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:30,193 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-11-19 07:53:30,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:30,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085146410] [2022-11-19 07:53:30,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085146410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:30,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:30,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:30,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850221316] [2022-11-19 07:53:30,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:30,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:30,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:30,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:30,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:30,200 INFO L87 Difference]: Start difference. First operand 4383 states and 6274 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 07:53:30,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:30,977 INFO L93 Difference]: Finished difference Result 9537 states and 13690 transitions. [2022-11-19 07:53:30,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:30,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 196 [2022-11-19 07:53:30,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:31,013 INFO L225 Difference]: With dead ends: 9537 [2022-11-19 07:53:31,013 INFO L226 Difference]: Without dead ends: 5199 [2022-11-19 07:53:31,032 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 [2022-11-19 07:53:31,033 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 821 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:31,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 1130 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:53:31,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2022-11-19 07:53:31,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 5169. [2022-11-19 07:53:31,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 3530 states have (on average 1.3971671388101983) internal successors, (4932), 3562 states have internal predecessors, (4932), 1182 states have call successors, (1182), 470 states have call predecessors, (1182), 456 states have return successors, (1202), 1160 states have call predecessors, (1202), 1178 states have call successors, (1202) [2022-11-19 07:53:31,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 7316 transitions. [2022-11-19 07:53:31,496 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 7316 transitions. Word has length 196 [2022-11-19 07:53:31,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:31,497 INFO L495 AbstractCegarLoop]: Abstraction has 5169 states and 7316 transitions. [2022-11-19 07:53:31,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 07:53:31,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 7316 transitions. [2022-11-19 07:53:31,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-19 07:53:31,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:31,505 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:31,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:53:31,506 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:31,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:31,506 INFO L85 PathProgramCache]: Analyzing trace with hash -35380687, now seen corresponding path program 1 times [2022-11-19 07:53:31,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:31,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889349780] [2022-11-19 07:53:31,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:31,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:31,998 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2022-11-19 07:53:31,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:31,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889349780] [2022-11-19 07:53:31,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889349780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:31,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:31,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:31,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645925139] [2022-11-19 07:53:31,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:32,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:32,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:32,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:32,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:32,009 INFO L87 Difference]: Start difference. First operand 5169 states and 7316 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 07:53:33,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:33,273 INFO L93 Difference]: Finished difference Result 15229 states and 21500 transitions. [2022-11-19 07:53:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:33,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 272 [2022-11-19 07:53:33,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:33,345 INFO L225 Difference]: With dead ends: 15229 [2022-11-19 07:53:33,345 INFO L226 Difference]: Without dead ends: 10109 [2022-11-19 07:53:33,367 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 [2022-11-19 07:53:33,368 INFO L413 NwaCegarLoop]: 1030 mSDtfsCounter, 862 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:33,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 1759 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 07:53:33,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10109 states. [2022-11-19 07:53:34,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10109 to 10099. [2022-11-19 07:53:34,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10099 states, 6892 states have (on average 1.3940800928612884) internal successors, (9608), 6956 states have internal predecessors, (9608), 2294 states have call successors, (2294), 938 states have call predecessors, (2294), 912 states have return successors, (2338), 2252 states have call predecessors, (2338), 2290 states have call successors, (2338) [2022-11-19 07:53:34,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10099 states to 10099 states and 14240 transitions. [2022-11-19 07:53:34,144 INFO L78 Accepts]: Start accepts. Automaton has 10099 states and 14240 transitions. Word has length 272 [2022-11-19 07:53:34,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:34,146 INFO L495 AbstractCegarLoop]: Abstraction has 10099 states and 14240 transitions. [2022-11-19 07:53:34,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 07:53:34,147 INFO L276 IsEmpty]: Start isEmpty. Operand 10099 states and 14240 transitions. [2022-11-19 07:53:34,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-11-19 07:53:34,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:34,153 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:34,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:53:34,153 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:34,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:34,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1623519752, now seen corresponding path program 1 times [2022-11-19 07:53:34,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:34,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875426882] [2022-11-19 07:53:34,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:34,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:34,575 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2022-11-19 07:53:34,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:34,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875426882] [2022-11-19 07:53:34,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875426882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:34,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:34,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:34,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422811972] [2022-11-19 07:53:34,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:34,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:34,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:34,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:34,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:34,578 INFO L87 Difference]: Start difference. First operand 10099 states and 14240 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 07:53:36,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:36,577 INFO L93 Difference]: Finished difference Result 27992 states and 39389 transitions. [2022-11-19 07:53:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:36,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 273 [2022-11-19 07:53:36,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:36,691 INFO L225 Difference]: With dead ends: 27992 [2022-11-19 07:53:36,691 INFO L226 Difference]: Without dead ends: 17942 [2022-11-19 07:53:36,739 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 [2022-11-19 07:53:36,740 INFO L413 NwaCegarLoop]: 1356 mSDtfsCounter, 836 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:36,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 2084 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 07:53:36,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17942 states. [2022-11-19 07:53:38,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17942 to 17933. [2022-11-19 07:53:38,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17933 states, 12226 states have (on average 1.3893342057909372) internal successors, (16986), 12342 states have internal predecessors, (16986), 4060 states have call successors, (4060), 1688 states have call predecessors, (4060), 1646 states have return successors, (4152), 3990 states have call predecessors, (4152), 4056 states have call successors, (4152) [2022-11-19 07:53:38,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17933 states to 17933 states and 25198 transitions. [2022-11-19 07:53:38,159 INFO L78 Accepts]: Start accepts. Automaton has 17933 states and 25198 transitions. Word has length 273 [2022-11-19 07:53:38,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:38,160 INFO L495 AbstractCegarLoop]: Abstraction has 17933 states and 25198 transitions. [2022-11-19 07:53:38,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 07:53:38,160 INFO L276 IsEmpty]: Start isEmpty. Operand 17933 states and 25198 transitions. [2022-11-19 07:53:38,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-11-19 07:53:38,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:38,170 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:38,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:53:38,171 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:38,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:38,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1978262915, now seen corresponding path program 1 times [2022-11-19 07:53:38,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:38,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610311404] [2022-11-19 07:53:38,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:38,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:38,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1893 trivial. 0 not checked. [2022-11-19 07:53:38,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:38,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610311404] [2022-11-19 07:53:38,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610311404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:38,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:38,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:38,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604478701] [2022-11-19 07:53:38,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:38,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:38,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:38,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:38,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:38,759 INFO L87 Difference]: Start difference. First operand 17933 states and 25198 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-19 07:53:40,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:40,430 INFO L93 Difference]: Finished difference Result 20435 states and 28384 transitions. [2022-11-19 07:53:40,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:40,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 339 [2022-11-19 07:53:40,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:40,502 INFO L225 Difference]: With dead ends: 20435 [2022-11-19 07:53:40,502 INFO L226 Difference]: Without dead ends: 17323 [2022-11-19 07:53:40,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:40,518 INFO L413 NwaCegarLoop]: 987 mSDtfsCounter, 289 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:40,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 1763 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 07:53:40,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17323 states. [2022-11-19 07:53:41,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17323 to 17231. [2022-11-19 07:53:41,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17231 states, 11763 states have (on average 1.3893564566862195) internal successors, (16343), 11882 states have internal predecessors, (16343), 3887 states have call successors, (3887), 1615 states have call predecessors, (3887), 1580 states have return successors, (3850), 3813 states have call predecessors, (3850), 3850 states have call successors, (3850) [2022-11-19 07:53:41,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17231 states to 17231 states and 24080 transitions. [2022-11-19 07:53:41,753 INFO L78 Accepts]: Start accepts. Automaton has 17231 states and 24080 transitions. Word has length 339 [2022-11-19 07:53:41,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:41,754 INFO L495 AbstractCegarLoop]: Abstraction has 17231 states and 24080 transitions. [2022-11-19 07:53:41,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-19 07:53:41,754 INFO L276 IsEmpty]: Start isEmpty. Operand 17231 states and 24080 transitions. [2022-11-19 07:53:41,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-11-19 07:53:41,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:41,815 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:41,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:53:41,816 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:41,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:41,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1845445417, now seen corresponding path program 1 times [2022-11-19 07:53:41,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:41,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571535581] [2022-11-19 07:53:41,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:41,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:46,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1927 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 1913 trivial. 0 not checked. [2022-11-19 07:53:46,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:46,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571535581] [2022-11-19 07:53:46,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571535581] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:53:46,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140076686] [2022-11-19 07:53:46,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:46,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:46,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:46,077 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:53:46,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf587f8-0dfe-4783-bc93-bc59067dcf48/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:53:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:47,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 4027 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-19 07:53:47,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:53:47,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1927 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 1907 trivial. 0 not checked. [2022-11-19 07:53:47,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:53:49,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1927 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1913 trivial. 0 not checked. [2022-11-19 07:53:49,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140076686] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:53:49,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1918868635] [2022-11-19 07:53:49,291 INFO L159 IcfgInterpreter]: Started Sifa with 158 locations of interest [2022-11-19 07:53:49,292 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:53:49,297 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:53:49,302 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:53:49,303 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:53:51,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:51,957 INFO L217 Elim1Store]: Index analysis took 848 ms [2022-11-19 07:56:13,816 WARN L233 SmtUtils]: Spent 2.36m on a formula simplification. DAG size of input: 3862 DAG size of output: 1381 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:56:13,829 INFO L321 Elim1Store]: treesize reduction 27636, result has 8.7 percent of original size [2022-11-19 07:56:13,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 773 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 779 case distinctions, treesize of input 807 treesize of output 3289 [2022-11-19 07:56:17,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:17,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 38 select indices, 38 select index equivalence classes, 1447 disjoint index pairs (out of 703 index pairs), introduced 38 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 385 [2022-11-19 07:56:31,459 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 [2022-11-19 07:56:31,466 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 [2022-11-19 07:56:31,475 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 7 treesize of output 6 [2022-11-19 07:56:36,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:36,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 55 select indices, 55 select index equivalence classes, 1485 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 276 treesize of output 166 [2022-11-19 07:56:37,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:37,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 54 select indices, 54 select index equivalence classes, 1447 disjoint index pairs (out of 1431 index pairs), introduced 54 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 163 [2022-11-19 07:56:38,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:38,793 INFO L217 Elim1Store]: Index analysis took 142 ms [2022-11-19 07:56:38,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 73 select indices, 73 select index equivalence classes, 502 disjoint index pairs (out of 2628 index pairs), introduced 73 new quantified variables, introduced 0 case distinctions, treesize of input 626 treesize of output 220 [2022-11-19 07:56:57,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 54 select indices, 54 select index equivalence classes, 1447 disjoint index pairs (out of 1431 index pairs), introduced 54 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 163 [2022-11-19 07:56:57,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:57,696 INFO L217 Elim1Store]: Index analysis took 109 ms [2022-11-19 07:56:57,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 73 select indices, 73 select index equivalence classes, 502 disjoint index pairs (out of 2628 index pairs), introduced 73 new quantified variables, introduced 0 case distinctions, treesize of input 626 treesize of output 220 [2022-11-19 07:56:58,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:56:58,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 55 select indices, 55 select index equivalence classes, 1485 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 276 treesize of output 166 [2022-11-19 08:00:14,591 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 [2022-11-19 08:00:15,176 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 [2022-11-19 08:00:15,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 treesize of output 4 [2022-11-19 08:00:18,131 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:00:18,184 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:00:18,222 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:03:11,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 treesize of output 4 [2022-11-19 08:03:11,623 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 [2022-11-19 08:03:13,140 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 [2022-11-19 08:03:15,194 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:03:15,215 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:03:15,336 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:03:33,312 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 [2022-11-19 08:03:33,839 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 [2022-11-19 08:03:34,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 treesize of output 4 [2022-11-19 08:03:41,826 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 [2022-11-19 08:03:42,275 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 [2022-11-19 08:03:42,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 treesize of output 4 [2022-11-19 08:03:59,673 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 [2022-11-19 08:04:00,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 treesize of output 4 [2022-11-19 08:04:00,453 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 [2022-11-19 08:04:08,235 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 [2022-11-19 08:04:09,289 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 [2022-11-19 08:04:09,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 treesize of output 4