./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--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI --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 c4688b1ddb31359a921bfca23d47e7e923ff98a1afc48ce8e9cab3f87b203bbb --- 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-5e519f3 [2022-11-03 02:17:46,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:17:46,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:17:46,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:17:46,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:17:46,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:17:46,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:17:46,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:17:46,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:17:46,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:17:46,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:17:46,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:17:46,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:17:46,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:17:46,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:17:46,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:17:46,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:17:46,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:17:46,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:17:46,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:17:46,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:17:46,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:17:46,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:17:46,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:17:46,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:17:46,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:17:46,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:17:46,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:17:46,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:17:46,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:17:46,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:17:46,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:17:46,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:17:46,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:17:46,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:17:46,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:17:46,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:17:46,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:17:46,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:17:46,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:17:46,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:17:46,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:17:46,712 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:17:46,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:17:46,713 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:17:46,713 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:17:46,714 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:17:46,714 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:17:46,715 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:17:46,715 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:17:46,715 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:17:46,715 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:17:46,716 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:17:46,717 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:17:46,717 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:17:46,717 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:17:46,717 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:17:46,718 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:17:46,718 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:17:46,718 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:17:46,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:17:46,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:17:46,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:17:46,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:17:46,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:17:46,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:17:46,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:17:46,720 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:17:46,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:17:46,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:17:46,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:17:46,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:17:46,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:17:46,722 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:17:46,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:17:46,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:17:46,723 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:17:46,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:17:46,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:17:46,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:17:46,724 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_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4688b1ddb31359a921bfca23d47e7e923ff98a1afc48ce8e9cab3f87b203bbb [2022-11-03 02:17:47,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:17:47,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:17:47,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:17:47,115 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:17:47,116 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:17:47,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i [2022-11-03 02:17:47,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI/data/a19143a83/e3073fe255004ffdbefcac37dfa83cca/FLAG09d7a335c [2022-11-03 02:17:48,505 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:17:48,506 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i [2022-11-03 02:17:48,584 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI/data/a19143a83/e3073fe255004ffdbefcac37dfa83cca/FLAG09d7a335c [2022-11-03 02:17:48,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI/data/a19143a83/e3073fe255004ffdbefcac37dfa83cca [2022-11-03 02:17:48,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:17:48,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:17:48,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:17:48,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:17:48,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:17:48,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:17:48" (1/1) ... [2022-11-03 02:17:48,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c3c94ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:48, skipping insertion in model container [2022-11-03 02:17:48,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:17:48" (1/1) ... [2022-11-03 02:17:48,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:17:48,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:17:55,585 WARN L230 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_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i[634007,634020] [2022-11-03 02:17:55,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:17:56,098 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:17:56,782 WARN L230 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_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i[634007,634020] [2022-11-03 02:17:56,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:17:57,163 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:17:57,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:57 WrapperNode [2022-11-03 02:17:57,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:17:57,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:17:57,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:17:57,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:17:57,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:57" (1/1) ... [2022-11-03 02:17:57,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:57" (1/1) ... [2022-11-03 02:17:58,022 INFO L138 Inliner]: procedures = 748, calls = 8905, calls flagged for inlining = 319, calls inlined = 304, statements flattened = 16042 [2022-11-03 02:17:58,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:17:58,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:17:58,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:17:58,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:17:58,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:57" (1/1) ... [2022-11-03 02:17:58,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:57" (1/1) ... [2022-11-03 02:17:58,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:57" (1/1) ... [2022-11-03 02:17:58,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:57" (1/1) ... [2022-11-03 02:17:58,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:57" (1/1) ... [2022-11-03 02:17:58,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:57" (1/1) ... [2022-11-03 02:17:58,628 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:57" (1/1) ... [2022-11-03 02:17:58,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:57" (1/1) ... [2022-11-03 02:17:58,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:17:58,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:17:58,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:17:58,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:17:58,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:57" (1/1) ... [2022-11-03 02:17:58,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:17:58,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:17:58,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:17:58,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d59da-d97e-433f-81e1-8bcc1fc281ec/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:17:58,885 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 02:17:58,885 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 02:17:58,885 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-03 02:17:58,885 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-03 02:17:58,885 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread32_locked [2022-11-03 02:17:58,886 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread32_locked [2022-11-03 02:17:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_info_clear_status [2022-11-03 02:17:58,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_info_clear_status [2022-11-03 02:17:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure zd_check_signal [2022-11-03 02:17:58,886 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_check_signal [2022-11-03 02:17:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:17:58,886 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:17:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-03 02:17:58,887 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-03 02:17:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-11-03 02:17:58,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-11-03 02:17:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure post_reset [2022-11-03 02:17:58,887 INFO L138 BoogieDeclarations]: Found implementation of procedure post_reset [2022-11-03 02:17:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_init_hw [2022-11-03 02:17:58,887 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_init_hw [2022-11-03 02:17:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:17:58,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:17:58,888 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-11-03 02:17:58,888 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-11-03 02:17:58,888 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_usbdev [2022-11-03 02:17:58,888 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_usbdev [2022-11-03 02:17:58,888 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-03 02:17:58,889 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-03 02:17:58,889 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_rx [2022-11-03 02:17:58,889 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_rx [2022-11-03 02:17:58,889 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_set_channel [2022-11-03 02:17:58,889 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_set_channel [2022-11-03 02:17:58,889 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_clear [2022-11-03 02:17:58,889 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_clear [2022-11-03 02:17:58,889 INFO L130 BoogieDeclarations]: Found specification of procedure zd_switch_radio_off [2022-11-03 02:17:58,890 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_switch_radio_off [2022-11-03 02:17:58,890 INFO L130 BoogieDeclarations]: Found specification of procedure free_rx_urb [2022-11-03 02:17:58,890 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rx_urb [2022-11-03 02:17:58,890 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_configure_filter [2022-11-03 02:17:58,890 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_configure_filter [2022-11-03 02:17:58,891 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2022-11-03 02:17:58,891 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2022-11-03 02:17:58,891 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:17:58,891 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:17:58,891 INFO L130 BoogieDeclarations]: Found specification of procedure fw_reg_addr [2022-11-03 02:17:58,891 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_reg_addr [2022-11-03 02:17:58,892 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_beacon_get [2022-11-03 02:17:58,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_beacon_get [2022-11-03 02:17:58,892 INFO L130 BoogieDeclarations]: Found specification of procedure zd_switch_radio_on [2022-11-03 02:17:58,893 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_switch_radio_on [2022-11-03 02:17:58,893 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 02:17:58,894 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_config [2022-11-03 02:17:58,894 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_config [2022-11-03 02:17:58,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-03 02:17:58,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-03 02:17:58,894 INFO L130 BoogieDeclarations]: Found specification of procedure uw2453_init_mode [2022-11-03 02:17:58,894 INFO L138 BoogieDeclarations]: Found implementation of procedure uw2453_init_mode [2022-11-03 02:17:58,894 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-03 02:17:58,895 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-03 02:17:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_enable_hwint [2022-11-03 02:17:58,896 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_enable_hwint [2022-11-03 02:17:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:17:58,896 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:17:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:17:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_lock_phy_regs [2022-11-03 02:17:58,896 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_lock_phy_regs [2022-11-03 02:17:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:17:58,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:17:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_to_chip [2022-11-03 02:17:58,897 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_to_chip [2022-11-03 02:17:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_free_cur_beacon_locked [2022-11-03 02:17:58,897 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_free_cur_beacon_locked [2022-11-03 02:17:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_is_first [2022-11-03 02:17:58,897 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_is_first [2022-11-03 02:17:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_iowrite16v_async [2022-11-03 02:17:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_iowrite16v_async [2022-11-03 02:17:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-11-03 02:17:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-11-03 02:17:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:17:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:17:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwrite_locked [2022-11-03 02:17:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwrite_locked [2022-11-03 02:17:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-03 02:17:58,900 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-03 02:17:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:17:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:17:58,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:17:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:17:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_is_locked [2022-11-03 02:17:58,901 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_is_locked [2022-11-03 02:17:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_free_cur_beacon [2022-11-03 02:17:58,901 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_free_cur_beacon [2022-11-03 02:17:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure beacon_watchdog_handler [2022-11-03 02:17:58,903 INFO L138 BoogieDeclarations]: Found implementation of procedure beacon_watchdog_handler [2022-11-03 02:17:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_setup_mutex_of_zd_usb_rx [2022-11-03 02:17:58,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_setup_mutex_of_zd_usb_rx [2022-11-03 02:17:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_remove_interface [2022-11-03 02:17:58,903 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_remove_interface [2022-11-03 02:17:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:17:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure check_read_regs [2022-11-03 02:17:58,904 INFO L138 BoogieDeclarations]: Found implementation of procedure check_read_regs [2022-11-03 02:17:58,904 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_clear [2022-11-03 02:17:58,904 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_clear [2022-11-03 02:17:58,904 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rx_packet [2022-11-03 02:17:58,904 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rx_packet [2022-11-03 02:17:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_stop [2022-11-03 02:17:58,905 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_stop [2022-11-03 02:17:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite32a_locked [2022-11-03 02:17:58,905 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite32a_locked [2022-11-03 02:17:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure zd1211b_al7230b_finalize [2022-11-03 02:17:58,906 INFO L138 BoogieDeclarations]: Found implementation of procedure zd1211b_al7230b_finalize [2022-11-03 02:17:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:17:58,909 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:17:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite16_locked [2022-11-03 02:17:58,909 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite16_locked [2022-11-03 02:17:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-03 02:17:58,911 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-03 02:17:58,911 INFO L130 BoogieDeclarations]: Found specification of procedure test_init [2022-11-03 02:17:58,911 INFO L138 BoogieDeclarations]: Found implementation of procedure test_init [2022-11-03 02:17:58,911 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-11-03 02:17:58,918 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-11-03 02:17:58,918 INFO L130 BoogieDeclarations]: Found specification of procedure request_fw_file [2022-11-03 02:17:58,918 INFO L138 BoogieDeclarations]: Found implementation of procedure request_fw_file [2022-11-03 02:17:58,918 INFO L130 BoogieDeclarations]: Found specification of procedure dump_cr [2022-11-03 02:17:58,918 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_cr [2022-11-03 02:17:58,918 INFO L130 BoogieDeclarations]: Found specification of procedure usb_pipe_endpoint [2022-11-03 02:17:58,918 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_pipe_endpoint [2022-11-03 02:17:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mc_clear [2022-11-03 02:17:58,919 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mc_clear [2022-11-03 02:17:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 02:17:58,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 02:17:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-03 02:17:58,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-03 02:17:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:17:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure zd_write_mac_addr_common [2022-11-03 02:17:58,919 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_write_mac_addr_common [2022-11-03 02:17:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_prepare_multicast [2022-11-03 02:17:58,920 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_prepare_multicast [2022-11-03 02:17:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-03 02:17:58,920 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-03 02:17:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_disable_tx [2022-11-03 02:17:58,920 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_disable_tx [2022-11-03 02:17:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_hw [2022-11-03 02:17:58,920 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_hw [2022-11-03 02:17:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:17:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-03 02:17:58,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-03 02:17:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_ioread16 [2022-11-03 02:17:58,921 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_ioread16 [2022-11-03 02:17:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:17:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_resume [2022-11-03 02:17:58,921 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_resume [2022-11-03 02:17:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:17:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:17:58,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:17:58,922 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-03 02:17:58,922 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-03 02:17:58,922 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread32v_locked [2022-11-03 02:17:58,922 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread32v_locked [2022-11-03 02:17:58,922 INFO L130 BoogieDeclarations]: Found specification of procedure get_fw_name [2022-11-03 02:17:58,922 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fw_name [2022-11-03 02:17:58,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:17:58,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:17:58,922 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_is_zd1211b [2022-11-03 02:17:58,923 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_is_zd1211b [2022-11-03 02:17:58,923 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-03 02:17:58,923 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-03 02:17:58,923 INFO L130 BoogieDeclarations]: Found specification of procedure set_beacon_interval [2022-11-03 02:17:58,923 INFO L138 BoogieDeclarations]: Found implementation of procedure set_beacon_interval [2022-11-03 02:17:58,923 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_filter [2022-11-03 02:17:58,923 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_filter [2022-11-03 02:17:58,923 INFO L130 BoogieDeclarations]: Found specification of procedure uw2453_synth_set_channel [2022-11-03 02:17:58,923 INFO L138 BoogieDeclarations]: Found implementation of procedure uw2453_synth_set_channel [2022-11-03 02:17:58,923 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work___0 [2022-11-03 02:17:58,924 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work___0 [2022-11-03 02:17:58,924 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-03 02:17:58,924 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-03 02:17:58,924 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_iowrite16v_async_start [2022-11-03 02:17:58,924 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_iowrite16v_async_start [2022-11-03 02:17:58,924 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_disable_rx [2022-11-03 02:17:58,924 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_disable_rx [2022-11-03 02:17:58,924 INFO L130 BoogieDeclarations]: Found specification of procedure zd1211b_al2230_finalize_rf [2022-11-03 02:17:58,924 INFO L138 BoogieDeclarations]: Found implementation of procedure zd1211b_al2230_finalize_rf [2022-11-03 02:17:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite32_locked [2022-11-03 02:17:58,925 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite32_locked [2022-11-03 02:17:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure handle_regs_int_override [2022-11-03 02:17:58,925 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_regs_int_override [2022-11-03 02:17:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_set_multicast_hash [2022-11-03 02:17:58,925 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_set_multicast_hash [2022-11-03 02:17:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-03 02:17:58,925 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-03 02:17:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 02:17:58,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 02:17:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure disable_hwint [2022-11-03 02:17:58,926 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_hwint [2022-11-03 02:17:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:17:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:17:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_tx_status [2022-11-03 02:17:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_tx_status [2022-11-03 02:17:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_disable_rxtx [2022-11-03 02:17:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_disable_rxtx [2022-11-03 02:17:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-03 02:17:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-03 02:17:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_unlock_phy_regs [2022-11-03 02:17:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_unlock_phy_regs [2022-11-03 02:17:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-03 02:17:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-03 02:17:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:17:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:17:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_name [2022-11-03 02:17:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_name [2022-11-03 02:17:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-03 02:17:58,929 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-03 02:17:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_clear [2022-11-03 02:17:58,929 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_clear [2022-11-03 02:17:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwritev_locked [2022-11-03 02:17:58,929 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwritev_locked [2022-11-03 02:17:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:17:58,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:17:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_wake_queues [2022-11-03 02:17:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_wake_queues [2022-11-03 02:17:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_control_leds [2022-11-03 02:17:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_control_leds [2022-11-03 02:17:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-03 02:17:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-03 02:17:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 02:17:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 02:17:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure scnprint_id___0 [2022-11-03 02:17:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprint_id___0 [2022-11-03 02:17:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_pspoll [2022-11-03 02:17:58,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_pspoll [2022-11-03 02:17:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_iowrite16v_async_end [2022-11-03 02:17:58,931 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_iowrite16v_async_end [2022-11-03 02:17:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-03 02:17:58,931 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-03 02:17:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:17:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:17:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure upload_code [2022-11-03 02:17:58,936 INFO L138 BoogieDeclarations]: Found implementation of procedure upload_code [2022-11-03 02:17:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:17:58,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:17:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 02:17:58,936 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 02:17:58,937 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rx_idle_timer_handler [2022-11-03 02:17:58,937 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rx_idle_timer_handler [2022-11-03 02:17:58,937 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwrite_cr_locked [2022-11-03 02:17:58,937 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwrite_cr_locked [2022-11-03 02:17:58,938 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~TO~int [2022-11-03 02:17:58,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~TO~int [2022-11-03 02:17:58,938 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-03 02:17:58,938 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-03 02:17:58,938 INFO L130 BoogieDeclarations]: Found specification of procedure set_rts_cts [2022-11-03 02:17:58,938 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rts_cts [2022-11-03 02:17:58,938 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_mac [2022-11-03 02:17:58,938 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_mac [2022-11-03 02:17:58,938 INFO L130 BoogieDeclarations]: Found specification of procedure __zd_usb_disable_rx [2022-11-03 02:17:58,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __zd_usb_disable_rx [2022-11-03 02:17:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure zd_submit_waiting_urb [2022-11-03 02:17:58,939 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_submit_waiting_urb [2022-11-03 02:17:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_stop [2022-11-03 02:17:58,939 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_stop [2022-11-03 02:17:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_status_irqsafe [2022-11-03 02:17:58,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_status_irqsafe [2022-11-03 02:17:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_reset_rx_idle_timer [2022-11-03 02:17:58,939 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_reset_rx_idle_timer [2022-11-03 02:17:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:17:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:17:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-03 02:17:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-03 02:17:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 02:17:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 02:17:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-03 02:17:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-03 02:17:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure zd_set_beacon_interval [2022-11-03 02:17:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_set_beacon_interval [2022-11-03 02:17:58,941 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 02:17:58,941 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 02:17:58,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:17:58,941 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:17:58,941 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcdDevice [2022-11-03 02:17:58,941 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcdDevice [2022-11-03 02:17:58,941 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_disable_int [2022-11-03 02:17:58,941 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_disable_int [2022-11-03 02:17:58,941 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:17:58,941 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:17:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-03 02:17:58,942 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-03 02:17:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 02:17:58,942 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 02:17:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 02:17:58,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 02:17:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:17:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:17:58,942 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:17:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_init_hw [2022-11-03 02:17:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_init_hw [2022-11-03 02:17:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure __zd_usb_enable_rx [2022-11-03 02:17:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __zd_usb_enable_rx [2022-11-03 02:17:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure usb_int_regs_length [2022-11-03 02:17:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_int_regs_length [2022-11-03 02:17:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:17:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-11-03 02:17:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-11-03 02:17:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-11-03 02:17:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-11-03 02:17:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite32 [2022-11-03 02:17:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite32 [2022-11-03 02:17:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:17:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_config_beacon [2022-11-03 02:17:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_config_beacon [2022-11-03 02:17:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-11-03 02:17:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-11-03 02:17:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-03 02:17:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-03 02:17:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 02:17:58,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 02:17:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-03 02:17:58,945 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-03 02:17:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2022-11-03 02:17:58,945 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2022-11-03 02:17:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:17:58,945 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:17:58,946 INFO L130 BoogieDeclarations]: Found specification of procedure zd_tx_watchdog_handler [2022-11-03 02:17:58,946 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_tx_watchdog_handler [2022-11-03 02:17:58,946 INFO L130 BoogieDeclarations]: Found specification of procedure zd_hw_mac [2022-11-03 02:17:58,947 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_hw_mac [2022-11-03 02:17:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure read_values [2022-11-03 02:17:58,947 INFO L138 BoogieDeclarations]: Found implementation of procedure read_values [2022-11-03 02:17:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-03 02:17:58,947 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-03 02:17:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:17:58,947 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:17:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-03 02:17:58,947 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-03 02:17:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_start [2022-11-03 02:17:58,948 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_start [2022-11-03 02:17:58,948 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-03 02:17:58,948 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-03 02:17:58,948 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-03 02:17:58,948 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-03 02:17:58,948 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect [2022-11-03 02:17:58,948 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect [2022-11-03 02:17:58,948 INFO L130 BoogieDeclarations]: Found specification of procedure zd_intf_to_hw [2022-11-03 02:17:58,948 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_intf_to_hw [2022-11-03 02:17:58,948 INFO L130 BoogieDeclarations]: Found specification of procedure inc_addr [2022-11-03 02:17:58,949 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_addr [2022-11-03 02:17:58,949 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-03 02:17:58,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-03 02:17:58,949 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_to_mac [2022-11-03 02:17:58,949 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_to_mac [2022-11-03 02:17:58,949 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwritev_cr_locked [2022-11-03 02:17:58,949 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwritev_cr_locked [2022-11-03 02:17:58,949 INFO L130 BoogieDeclarations]: Found specification of procedure pre_reset [2022-11-03 02:17:58,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pre_reset [2022-11-03 02:17:58,950 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 02:17:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 02:17:58,950 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:17:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:17:58,950 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_switch_radio_on [2022-11-03 02:17:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_switch_radio_on [2022-11-03 02:17:58,950 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-11-03 02:17:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-11-03 02:17:58,950 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:17:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:17:58,951 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2022-11-03 02:17:58,951 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2022-11-03 02:17:58,951 INFO L130 BoogieDeclarations]: Found specification of procedure uw2453_write_vco_cfg [2022-11-03 02:17:58,951 INFO L138 BoogieDeclarations]: Found implementation of procedure uw2453_write_vco_cfg [2022-11-03 02:17:58,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:17:58,951 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_switch_radio_off [2022-11-03 02:17:58,951 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_switch_radio_off [2022-11-03 02:17:58,951 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ep_regs_out_msg [2022-11-03 02:17:58,951 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ep_regs_out_msg [2022-11-03 02:17:58,951 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-03 02:17:58,952 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-03 02:17:58,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:17:58,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:17:58,952 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags___0 [2022-11-03 02:17:58,952 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags___0 [2022-11-03 02:17:58,952 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_chip [2022-11-03 02:17:58,952 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_chip [2022-11-03 02:17:58,952 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_disable_hwint [2022-11-03 02:17:58,952 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_disable_hwint [2022-11-03 02:17:58,952 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_ioread16v [2022-11-03 02:17:58,953 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_ioread16v [2022-11-03 02:17:58,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 02:17:58,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 02:17:58,953 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_init_hw [2022-11-03 02:17:58,953 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_init_hw [2022-11-03 02:17:58,953 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread16_locked [2022-11-03 02:17:58,953 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread16_locked [2022-11-03 02:17:58,953 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_init_hw [2022-11-03 02:17:58,953 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_init_hw [2022-11-03 02:17:58,953 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_bss_info_changed [2022-11-03 02:17:58,954 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_bss_info_changed [2022-11-03 02:17:58,954 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-03 02:17:58,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-03 02:17:58,954 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-03 02:17:58,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-03 02:17:58,954 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_get_tsf [2022-11-03 02:17:58,954 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_get_tsf [2022-11-03 02:17:58,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_zd_chip [2022-11-03 02:17:58,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_zd_chip [2022-11-03 02:17:58,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_setup_mutex_of_zd_usb_rx [2022-11-03 02:17:58,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_setup_mutex_of_zd_usb_rx [2022-11-03 02:17:58,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_zd_chip [2022-11-03 02:17:58,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_zd_chip [2022-11-03 02:17:58,955 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_disable_int [2022-11-03 02:17:58,955 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_disable_int [2022-11-03 02:17:58,955 INFO L130 BoogieDeclarations]: Found specification of procedure zd_process_intr [2022-11-03 02:17:58,955 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_process_intr [2022-11-03 02:17:58,955 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-11-03 02:17:58,955 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-11-03 02:17:58,955 INFO L130 BoogieDeclarations]: Found specification of procedure link_led_handler [2022-11-03 02:17:58,956 INFO L138 BoogieDeclarations]: Found implementation of procedure link_led_handler [2022-11-03 02:17:58,956 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 02:17:58,956 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 02:17:58,956 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2022-11-03 02:17:58,956 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2022-11-03 02:17:58,956 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread16v_locked [2022-11-03 02:17:58,956 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread16v_locked [2022-11-03 02:17:58,956 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 02:17:58,956 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 02:17:58,956 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_enable_int [2022-11-03 02:17:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_enable_int [2022-11-03 02:17:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2022-11-03 02:17:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2022-11-03 02:17:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:17:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:17:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure _zd_iowrite32v_async_locked [2022-11-03 02:17:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure _zd_iowrite32v_async_locked [2022-11-03 02:17:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure set_mac_and_bssid [2022-11-03 02:17:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mac_and_bssid [2022-11-03 02:17:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_tx [2022-11-03 02:17:58,958 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_tx [2022-11-03 02:17:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_add_interface [2022-11-03 02:17:58,958 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_add_interface [2022-11-03 02:17:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:17:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure zd_write_mac_addr [2022-11-03 02:17:58,958 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_write_mac_addr [2022-11-03 02:17:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-03 02:17:58,958 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-03 02:17:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite16a_locked [2022-11-03 02:17:58,958 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite16a_locked [2022-11-03 02:17:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-03 02:17:58,959 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-03 02:18:00,424 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:18:00,429 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:18:03,385 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:22:52,069 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:22:55,349 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:22:55,349 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:22:55,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:22:55 BoogieIcfgContainer [2022-11-03 02:22:55,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:22:55,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:22:55,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:22:55,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:22:55,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:17:48" (1/3) ... [2022-11-03 02:22:55,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7996b94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:22:55, skipping insertion in model container [2022-11-03 02:22:55,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:57" (2/3) ... [2022-11-03 02:22:55,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7996b94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:22:55, skipping insertion in model container [2022-11-03 02:22:55,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:22:55" (3/3) ... [2022-11-03 02:22:55,372 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i [2022-11-03 02:22:55,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:22:55,393 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:22:55,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:22:55,537 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;@50b440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:22:55,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:22:55,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 3462 states, 2025 states have (on average 1.3017283950617284) internal successors, (2636), 2136 states have internal predecessors, (2636), 1222 states have call successors, (1222), 214 states have call predecessors, (1222), 213 states have return successors, (1216), 1207 states have call predecessors, (1216), 1216 states have call successors, (1216) [2022-11-03 02:22:55,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-03 02:22:55,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:55,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:55,572 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:55,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:55,576 INFO L85 PathProgramCache]: Analyzing trace with hash -934857938, now seen corresponding path program 1 times [2022-11-03 02:22:55,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:55,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635093326] [2022-11-03 02:22:55,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:55,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:57,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:57,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:57,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635093326] [2022-11-03 02:22:57,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635093326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:57,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:57,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:22:57,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435722118] [2022-11-03 02:22:57,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:57,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:22:57,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:57,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:22:57,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:22:57,596 INFO L87 Difference]: Start difference. First operand has 3462 states, 2025 states have (on average 1.3017283950617284) internal successors, (2636), 2136 states have internal predecessors, (2636), 1222 states have call successors, (1222), 214 states have call predecessors, (1222), 213 states have return successors, (1216), 1207 states have call predecessors, (1216), 1216 states have call successors, (1216) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:23:03,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:23:07,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:08,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:08,481 INFO L93 Difference]: Finished difference Result 6973 states and 10341 transitions. [2022-11-03 02:23:08,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:23:08,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2022-11-03 02:23:08,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:08,546 INFO L225 Difference]: With dead ends: 6973 [2022-11-03 02:23:08,547 INFO L226 Difference]: Without dead ends: 3497 [2022-11-03 02:23:08,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:23:08,584 INFO L413 NwaCegarLoop]: 4591 mSDtfsCounter, 4978 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 4666 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:08,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4981 Valid, 4666 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 10.4s Time] [2022-11-03 02:23:08,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2022-11-03 02:23:08,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 3497. [2022-11-03 02:23:08,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 2043 states have (on average 1.2912383749388154) internal successors, (2638), 2145 states have internal predecessors, (2638), 1220 states have call successors, (1220), 234 states have call predecessors, (1220), 233 states have return successors, (1212), 1203 states have call predecessors, (1212), 1212 states have call successors, (1212) [2022-11-03 02:23:08,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 5070 transitions. [2022-11-03 02:23:08,928 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 5070 transitions. Word has length 36 [2022-11-03 02:23:08,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:08,930 INFO L495 AbstractCegarLoop]: Abstraction has 3497 states and 5070 transitions. [2022-11-03 02:23:08,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:23:08,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 5070 transitions. [2022-11-03 02:23:08,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-03 02:23:08,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:08,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:08,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:23:08,940 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:08,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:08,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1082122040, now seen corresponding path program 1 times [2022-11-03 02:23:08,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:08,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724618758] [2022-11-03 02:23:08,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:08,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:10,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:10,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724618758] [2022-11-03 02:23:10,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724618758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:10,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:10,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:23:10,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285633726] [2022-11-03 02:23:10,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:10,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:23:10,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:10,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:23:10,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:23:10,190 INFO L87 Difference]: Start difference. First operand 3497 states and 5070 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:23:13,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:19,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:23:23,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:23,746 INFO L93 Difference]: Finished difference Result 3731 states and 5371 transitions. [2022-11-03 02:23:23,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:23:23,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2022-11-03 02:23:23,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:23,773 INFO L225 Difference]: With dead ends: 3731 [2022-11-03 02:23:23,773 INFO L226 Difference]: Without dead ends: 3728 [2022-11-03 02:23:23,776 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 [2022-11-03 02:23:23,778 INFO L413 NwaCegarLoop]: 4782 mSDtfsCounter, 4942 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4947 SdHoareTripleChecker+Valid, 5100 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:23,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4947 Valid, 5100 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 548 Invalid, 2 Unknown, 0 Unchecked, 13.3s Time] [2022-11-03 02:23:23,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3728 states. [2022-11-03 02:23:24,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3728 to 3723. [2022-11-03 02:23:24,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3723 states, 2173 states have (on average 1.2876208007363092) internal successors, (2798), 2286 states have internal predecessors, (2798), 1286 states have call successors, (1286), 264 states have call predecessors, (1286), 263 states have return successors, (1279), 1269 states have call predecessors, (1279), 1279 states have call successors, (1279) [2022-11-03 02:23:24,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 5363 transitions. [2022-11-03 02:23:24,048 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 5363 transitions. Word has length 37 [2022-11-03 02:23:24,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:24,050 INFO L495 AbstractCegarLoop]: Abstraction has 3723 states and 5363 transitions. [2022-11-03 02:23:24,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:23:24,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 5363 transitions. [2022-11-03 02:23:24,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-03 02:23:24,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:24,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:24,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:23:24,057 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:24,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:24,059 INFO L85 PathProgramCache]: Analyzing trace with hash -816003215, now seen corresponding path program 1 times [2022-11-03 02:23:24,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:24,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518251083] [2022-11-03 02:23:24,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:24,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:25,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:25,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:25,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518251083] [2022-11-03 02:23:25,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518251083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:25,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:25,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:23:25,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480531184] [2022-11-03 02:23:25,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:25,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:23:25,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:25,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:23:25,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:23:25,058 INFO L87 Difference]: Start difference. First operand 3723 states and 5363 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:23:30,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:23:34,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:34,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:34,922 INFO L93 Difference]: Finished difference Result 3725 states and 5364 transitions. [2022-11-03 02:23:34,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:23:34,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2022-11-03 02:23:34,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:34,951 INFO L225 Difference]: With dead ends: 3725 [2022-11-03 02:23:34,952 INFO L226 Difference]: Without dead ends: 3722 [2022-11-03 02:23:34,956 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 [2022-11-03 02:23:34,957 INFO L413 NwaCegarLoop]: 4557 mSDtfsCounter, 4941 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4944 SdHoareTripleChecker+Valid, 4632 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:34,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4944 Valid, 4632 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2022-11-03 02:23:34,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3722 states. [2022-11-03 02:23:35,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3722 to 3722. [2022-11-03 02:23:35,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3722 states, 2173 states have (on average 1.2871606074551312) internal successors, (2797), 2285 states have internal predecessors, (2797), 1285 states have call successors, (1285), 264 states have call predecessors, (1285), 263 states have return successors, (1279), 1269 states have call predecessors, (1279), 1279 states have call successors, (1279) [2022-11-03 02:23:35,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3722 states to 3722 states and 5361 transitions. [2022-11-03 02:23:35,238 INFO L78 Accepts]: Start accepts. Automaton has 3722 states and 5361 transitions. Word has length 38 [2022-11-03 02:23:35,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:35,239 INFO L495 AbstractCegarLoop]: Abstraction has 3722 states and 5361 transitions. [2022-11-03 02:23:35,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:23:35,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3722 states and 5361 transitions. [2022-11-03 02:23:35,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-03 02:23:35,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:35,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:35,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:23:35,244 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:35,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:35,245 INFO L85 PathProgramCache]: Analyzing trace with hash 471660891, now seen corresponding path program 1 times [2022-11-03 02:23:35,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:35,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716140630] [2022-11-03 02:23:35,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:35,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:36,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:36,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:36,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716140630] [2022-11-03 02:23:36,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716140630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:36,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:36,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:23:36,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381748128] [2022-11-03 02:23:36,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:36,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:23:36,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:36,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:23:36,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:23:36,212 INFO L87 Difference]: Start difference. First operand 3722 states and 5361 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:23:39,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:23:44,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:23:51,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:51,621 INFO L93 Difference]: Finished difference Result 8279 states and 11855 transitions. [2022-11-03 02:23:51,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:23:51,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2022-11-03 02:23:51,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:51,654 INFO L225 Difference]: With dead ends: 8279 [2022-11-03 02:23:51,654 INFO L226 Difference]: Without dead ends: 4560 [2022-11-03 02:23:51,676 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 [2022-11-03 02:23:51,677 INFO L413 NwaCegarLoop]: 5213 mSDtfsCounter, 3182 mSDsluCounter, 2913 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3185 SdHoareTripleChecker+Valid, 7865 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:51,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3185 Valid, 7865 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 808 Invalid, 2 Unknown, 0 Unchecked, 15.1s Time] [2022-11-03 02:23:51,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4560 states. [2022-11-03 02:23:51,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4560 to 4555. [2022-11-03 02:23:51,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4555 states, 2653 states have (on average 1.2762909913305691) internal successors, (3386), 2788 states have internal predecessors, (3386), 1535 states have call successors, (1535), 368 states have call predecessors, (1535), 366 states have return successors, (1536), 1518 states have call predecessors, (1536), 1527 states have call successors, (1536) [2022-11-03 02:23:51,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4555 states to 4555 states and 6457 transitions. [2022-11-03 02:23:51,976 INFO L78 Accepts]: Start accepts. Automaton has 4555 states and 6457 transitions. Word has length 39 [2022-11-03 02:23:51,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:51,979 INFO L495 AbstractCegarLoop]: Abstraction has 4555 states and 6457 transitions. [2022-11-03 02:23:51,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:23:51,979 INFO L276 IsEmpty]: Start isEmpty. Operand 4555 states and 6457 transitions. [2022-11-03 02:23:51,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-03 02:23:51,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:51,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:51,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:23:51,982 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:51,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:51,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1734547380, now seen corresponding path program 1 times [2022-11-03 02:23:51,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:51,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282603048] [2022-11-03 02:23:51,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:51,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:53,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:53,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:53,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282603048] [2022-11-03 02:23:53,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282603048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:53,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:53,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:23:53,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488487152] [2022-11-03 02:23:53,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:53,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:23:53,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:53,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:23:53,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:23:53,069 INFO L87 Difference]: Start difference. First operand 4555 states and 6457 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:23:58,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:24:01,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:01,905 INFO L93 Difference]: Finished difference Result 4674 states and 6541 transitions. [2022-11-03 02:24:01,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:01,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2022-11-03 02:24:01,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:01,938 INFO L225 Difference]: With dead ends: 4674 [2022-11-03 02:24:01,938 INFO L226 Difference]: Without dead ends: 4663 [2022-11-03 02:24:01,943 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 [2022-11-03 02:24:01,944 INFO L413 NwaCegarLoop]: 4562 mSDtfsCounter, 4762 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4765 SdHoareTripleChecker+Valid, 4808 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:01,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4765 Valid, 4808 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2022-11-03 02:24:01,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4663 states. [2022-11-03 02:24:02,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4663 to 4661. [2022-11-03 02:24:02,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4661 states, 2706 states have (on average 1.270509977827051) internal successors, (3438), 2840 states have internal predecessors, (3438), 1543 states have call successors, (1543), 413 states have call predecessors, (1543), 411 states have return successors, (1545), 1527 states have call predecessors, (1545), 1536 states have call successors, (1545) [2022-11-03 02:24:02,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4661 states to 4661 states and 6526 transitions. [2022-11-03 02:24:02,355 INFO L78 Accepts]: Start accepts. Automaton has 4661 states and 6526 transitions. Word has length 40 [2022-11-03 02:24:02,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:02,355 INFO L495 AbstractCegarLoop]: Abstraction has 4661 states and 6526 transitions. [2022-11-03 02:24:02,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:24:02,356 INFO L276 IsEmpty]: Start isEmpty. Operand 4661 states and 6526 transitions. [2022-11-03 02:24:02,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-03 02:24:02,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:02,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:02,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:24:02,361 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:02,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:02,363 INFO L85 PathProgramCache]: Analyzing trace with hash -421687172, now seen corresponding path program 1 times [2022-11-03 02:24:02,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:02,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823337533] [2022-11-03 02:24:02,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:02,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:03,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:03,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:03,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823337533] [2022-11-03 02:24:03,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823337533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:03,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:03,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:24:03,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230152229] [2022-11-03 02:24:03,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:03,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:03,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:03,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:03,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:24:03,805 INFO L87 Difference]: Start difference. First operand 4661 states and 6526 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 02:24:07,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:13,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:24:20,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:20,565 INFO L93 Difference]: Finished difference Result 4663 states and 6527 transitions. [2022-11-03 02:24:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:20,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 71 [2022-11-03 02:24:20,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:20,591 INFO L225 Difference]: With dead ends: 4663 [2022-11-03 02:24:20,591 INFO L226 Difference]: Without dead ends: 4660 [2022-11-03 02:24:20,594 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 [2022-11-03 02:24:20,595 INFO L413 NwaCegarLoop]: 4554 mSDtfsCounter, 201 mSDsluCounter, 4839 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 8932 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:20,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 8932 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 2 Unknown, 0 Unchecked, 16.4s Time] [2022-11-03 02:24:20,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4660 states. [2022-11-03 02:24:20,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4660 to 4660. [2022-11-03 02:24:20,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4660 states, 2706 states have (on average 1.269770879526977) internal successors, (3436), 2839 states have internal predecessors, (3436), 1542 states have call successors, (1542), 413 states have call predecessors, (1542), 411 states have return successors, (1545), 1527 states have call predecessors, (1545), 1536 states have call successors, (1545) [2022-11-03 02:24:20,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4660 states to 4660 states and 6523 transitions. [2022-11-03 02:24:20,923 INFO L78 Accepts]: Start accepts. Automaton has 4660 states and 6523 transitions. Word has length 71 [2022-11-03 02:24:20,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:20,925 INFO L495 AbstractCegarLoop]: Abstraction has 4660 states and 6523 transitions. [2022-11-03 02:24:20,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 02:24:20,926 INFO L276 IsEmpty]: Start isEmpty. Operand 4660 states and 6523 transitions. [2022-11-03 02:24:20,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-03 02:24:20,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:20,930 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:24:20,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:24:20,930 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:20,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:20,931 INFO L85 PathProgramCache]: Analyzing trace with hash 968637390, now seen corresponding path program 1 times [2022-11-03 02:24:20,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:20,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447886574] [2022-11-03 02:24:20,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:20,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:22,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:24:22,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:22,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447886574] [2022-11-03 02:24:22,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447886574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:22,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:22,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:24:22,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128096766] [2022-11-03 02:24:22,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:22,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:22,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:22,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:22,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:24:22,075 INFO L87 Difference]: Start difference. First operand 4660 states and 6523 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 02:24:31,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:24:37,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:38,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:38,520 INFO L93 Difference]: Finished difference Result 13865 states and 19437 transitions. [2022-11-03 02:24:38,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:38,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 103 [2022-11-03 02:24:38,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:38,582 INFO L225 Difference]: With dead ends: 13865 [2022-11-03 02:24:38,582 INFO L226 Difference]: Without dead ends: 9208 [2022-11-03 02:24:38,613 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 [2022-11-03 02:24:38,614 INFO L413 NwaCegarLoop]: 6068 mSDtfsCounter, 4924 mSDsluCounter, 4982 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4927 SdHoareTripleChecker+Valid, 10585 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:38,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4927 Valid, 10585 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1002 Invalid, 1 Unknown, 0 Unchecked, 15.9s Time] [2022-11-03 02:24:38,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9208 states. [2022-11-03 02:24:39,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9208 to 9190. [2022-11-03 02:24:39,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9190 states, 5342 states have (on average 1.2710595282665669) internal successors, (6790), 5606 states have internal predecessors, (6790), 3048 states have call successors, (3048), 802 states have call predecessors, (3048), 799 states have return successors, (3060), 3020 states have call predecessors, (3060), 3042 states have call successors, (3060) [2022-11-03 02:24:39,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9190 states to 9190 states and 12898 transitions. [2022-11-03 02:24:39,351 INFO L78 Accepts]: Start accepts. Automaton has 9190 states and 12898 transitions. Word has length 103 [2022-11-03 02:24:39,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:39,351 INFO L495 AbstractCegarLoop]: Abstraction has 9190 states and 12898 transitions. [2022-11-03 02:24:39,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 02:24:39,352 INFO L276 IsEmpty]: Start isEmpty. Operand 9190 states and 12898 transitions. [2022-11-03 02:24:39,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-03 02:24:39,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:39,361 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:24:39,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:24:39,362 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:39,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:39,362 INFO L85 PathProgramCache]: Analyzing trace with hash 162870218, now seen corresponding path program 1 times [2022-11-03 02:24:39,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:39,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274631853] [2022-11-03 02:24:39,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:39,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:41,161 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:24:41,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:41,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274631853] [2022-11-03 02:24:41,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274631853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:41,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:41,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:24:41,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009061669] [2022-11-03 02:24:41,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:41,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:24:41,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:41,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:24:41,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:24:41,164 INFO L87 Difference]: Start difference. First operand 9190 states and 12898 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:25:09,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:25:35,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:37,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:25:42,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:42,221 INFO L93 Difference]: Finished difference Result 27432 states and 38747 transitions. [2022-11-03 02:25:42,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:25:42,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 117 [2022-11-03 02:25:42,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:42,318 INFO L225 Difference]: With dead ends: 27432 [2022-11-03 02:25:42,318 INFO L226 Difference]: Without dead ends: 18245 [2022-11-03 02:25:42,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:25:42,373 INFO L413 NwaCegarLoop]: 5738 mSDtfsCounter, 4903 mSDsluCounter, 12732 mSDsCounter, 0 mSdLazyCounter, 6675 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4906 SdHoareTripleChecker+Valid, 17060 SdHoareTripleChecker+Invalid, 6696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 6675 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:42,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4906 Valid, 17060 Invalid, 6696 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 6675 Invalid, 2 Unknown, 0 Unchecked, 59.5s Time] [2022-11-03 02:25:42,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18245 states. [2022-11-03 02:25:43,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18245 to 18155. [2022-11-03 02:25:43,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18155 states, 10565 states have (on average 1.273639375295788) internal successors, (13456), 11102 states have internal predecessors, (13456), 6032 states have call successors, (6032), 1564 states have call predecessors, (6032), 1557 states have return successors, (6161), 5961 states have call predecessors, (6161), 6025 states have call successors, (6161) [2022-11-03 02:25:43,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18155 states to 18155 states and 25649 transitions. [2022-11-03 02:25:43,972 INFO L78 Accepts]: Start accepts. Automaton has 18155 states and 25649 transitions. Word has length 117 [2022-11-03 02:25:43,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:43,972 INFO L495 AbstractCegarLoop]: Abstraction has 18155 states and 25649 transitions. [2022-11-03 02:25:43,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:25:43,973 INFO L276 IsEmpty]: Start isEmpty. Operand 18155 states and 25649 transitions. [2022-11-03 02:25:43,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-03 02:25:43,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:43,985 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:25:43,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:25:43,986 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:43,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:43,986 INFO L85 PathProgramCache]: Analyzing trace with hash -882620352, now seen corresponding path program 1 times [2022-11-03 02:25:43,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:43,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190184604] [2022-11-03 02:25:43,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:43,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:46,405 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:25:46,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:46,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190184604] [2022-11-03 02:25:46,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190184604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:46,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:46,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:25:46,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005470270] [2022-11-03 02:25:46,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:46,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:25:46,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:46,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:25:46,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:25:46,408 INFO L87 Difference]: Start difference. First operand 18155 states and 25649 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:26:04,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:26:11,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:24,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:26:28,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:28,517 INFO L93 Difference]: Finished difference Result 45164 states and 63968 transitions. [2022-11-03 02:26:28,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:26:28,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 118 [2022-11-03 02:26:28,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:28,664 INFO L225 Difference]: With dead ends: 45164 [2022-11-03 02:26:28,664 INFO L226 Difference]: Without dead ends: 27012 [2022-11-03 02:26:28,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:26:28,741 INFO L413 NwaCegarLoop]: 6303 mSDtfsCounter, 4802 mSDsluCounter, 9569 mSDsCounter, 0 mSdLazyCounter, 3863 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4805 SdHoareTripleChecker+Valid, 14881 SdHoareTripleChecker+Invalid, 3870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3863 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:28,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4805 Valid, 14881 Invalid, 3870 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 3863 Invalid, 1 Unknown, 0 Unchecked, 40.4s Time] [2022-11-03 02:26:28,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27012 states. [2022-11-03 02:26:30,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27012 to 26864. [2022-11-03 02:26:30,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26864 states, 15666 states have (on average 1.275373420145538) internal successors, (19980), 16470 states have internal predecessors, (19980), 8912 states have call successors, (8912), 2310 states have call predecessors, (8912), 2285 states have return successors, (9207), 8776 states have call predecessors, (9207), 8904 states have call successors, (9207) [2022-11-03 02:26:30,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26864 states to 26864 states and 38099 transitions. [2022-11-03 02:26:30,937 INFO L78 Accepts]: Start accepts. Automaton has 26864 states and 38099 transitions. Word has length 118 [2022-11-03 02:26:30,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:30,939 INFO L495 AbstractCegarLoop]: Abstraction has 26864 states and 38099 transitions. [2022-11-03 02:26:30,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:26:30,940 INFO L276 IsEmpty]: Start isEmpty. Operand 26864 states and 38099 transitions. [2022-11-03 02:26:30,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-03 02:26:30,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:30,951 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:26:30,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:26:30,952 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:26:30,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:30,958 INFO L85 PathProgramCache]: Analyzing trace with hash 789285069, now seen corresponding path program 1 times [2022-11-03 02:26:30,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:30,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136983199] [2022-11-03 02:26:30,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:30,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:33,077 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:26:33,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:33,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136983199] [2022-11-03 02:26:33,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136983199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:33,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:33,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:26:33,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526156294] [2022-11-03 02:26:33,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:33,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:26:33,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:33,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:26:33,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:26:33,079 INFO L87 Difference]: Start difference. First operand 26864 states and 38099 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:26:51,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:27:12,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:27:12,464 INFO L93 Difference]: Finished difference Result 53857 states and 76385 transitions. [2022-11-03 02:27:12,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:27:12,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 119 [2022-11-03 02:27:12,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:27:12,729 INFO L225 Difference]: With dead ends: 53857 [2022-11-03 02:27:12,729 INFO L226 Difference]: Without dead ends: 26996 [2022-11-03 02:27:12,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:27:12,833 INFO L413 NwaCegarLoop]: 6312 mSDtfsCounter, 4792 mSDsluCounter, 9584 mSDsCounter, 0 mSdLazyCounter, 3859 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 14903 SdHoareTripleChecker+Invalid, 3865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3859 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:27:12,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 14903 Invalid, 3865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 3859 Invalid, 1 Unknown, 0 Unchecked, 37.4s Time] [2022-11-03 02:27:12,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26996 states. [2022-11-03 02:27:14,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26996 to 26868. [2022-11-03 02:27:14,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26868 states, 15670 states have (on average 1.2753031269942565) internal successors, (19984), 16472 states have internal predecessors, (19984), 8910 states have call successors, (8910), 2310 states have call predecessors, (8910), 2287 states have return successors, (9213), 8774 states have call predecessors, (9213), 8902 states have call successors, (9213) [2022-11-03 02:27:14,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26868 states to 26868 states and 38107 transitions. [2022-11-03 02:27:14,968 INFO L78 Accepts]: Start accepts. Automaton has 26868 states and 38107 transitions. Word has length 119 [2022-11-03 02:27:14,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:27:14,968 INFO L495 AbstractCegarLoop]: Abstraction has 26868 states and 38107 transitions. [2022-11-03 02:27:14,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:27:14,969 INFO L276 IsEmpty]: Start isEmpty. Operand 26868 states and 38107 transitions. [2022-11-03 02:27:14,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-03 02:27:14,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:27:14,982 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:27:14,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:27:14,982 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:27:14,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:27:14,984 INFO L85 PathProgramCache]: Analyzing trace with hash 801120291, now seen corresponding path program 1 times [2022-11-03 02:27:14,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:27:14,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494535418] [2022-11-03 02:27:14,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:27:14,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:27:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:27:17,524 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:27:17,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:27:17,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494535418] [2022-11-03 02:27:17,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494535418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:27:17,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:27:17,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:27:17,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90510846] [2022-11-03 02:27:17,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:27:17,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:27:17,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:27:17,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:27:17,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:27:17,526 INFO L87 Difference]: Start difference. First operand 26868 states and 38107 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:27:31,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:27:38,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:27:57,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:02,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:28:02,114 INFO L93 Difference]: Finished difference Result 53837 states and 76349 transitions. [2022-11-03 02:28:02,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:28:02,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 120 [2022-11-03 02:28:02,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:28:02,231 INFO L225 Difference]: With dead ends: 53837 [2022-11-03 02:28:02,231 INFO L226 Difference]: Without dead ends: 26966 [2022-11-03 02:28:02,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:28:02,456 INFO L413 NwaCegarLoop]: 7030 mSDtfsCounter, 4769 mSDsluCounter, 10377 mSDsCounter, 0 mSdLazyCounter, 3999 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4773 SdHoareTripleChecker+Valid, 16337 SdHoareTripleChecker+Invalid, 4006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3999 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:28:02,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4773 Valid, 16337 Invalid, 4006 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 3999 Invalid, 3 Unknown, 0 Unchecked, 42.4s Time] [2022-11-03 02:28:02,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26966 states. [2022-11-03 02:28:04,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26966 to 26834. [2022-11-03 02:28:04,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26834 states, 15652 states have (on average 1.2749169435215948) internal successors, (19955), 16445 states have internal predecessors, (19955), 8899 states have call successors, (8899), 2307 states have call predecessors, (8899), 2282 states have return successors, (9188), 8770 states have call predecessors, (9188), 8892 states have call successors, (9188) [2022-11-03 02:28:04,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26834 states to 26834 states and 38042 transitions. [2022-11-03 02:28:04,246 INFO L78 Accepts]: Start accepts. Automaton has 26834 states and 38042 transitions. Word has length 120 [2022-11-03 02:28:04,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:28:04,247 INFO L495 AbstractCegarLoop]: Abstraction has 26834 states and 38042 transitions. [2022-11-03 02:28:04,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:28:04,248 INFO L276 IsEmpty]: Start isEmpty. Operand 26834 states and 38042 transitions. [2022-11-03 02:28:04,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-03 02:28:04,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:04,271 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:28:04,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:28:04,272 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:28:04,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:04,273 INFO L85 PathProgramCache]: Analyzing trace with hash 407548899, now seen corresponding path program 1 times [2022-11-03 02:28:04,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:28:04,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314866768] [2022-11-03 02:28:04,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:04,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:28:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:05,905 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:28:05,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:28:05,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314866768] [2022-11-03 02:28:05,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314866768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:28:05,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:28:05,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:28:05,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213112941] [2022-11-03 02:28:05,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:28:05,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:28:05,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:28:05,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:28:05,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:28:05,908 INFO L87 Difference]: Start difference. First operand 26834 states and 38042 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 02:28:13,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:28:20,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:28:20,463 INFO L93 Difference]: Finished difference Result 50532 states and 71832 transitions. [2022-11-03 02:28:20,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:28:20,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 157 [2022-11-03 02:28:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:28:20,582 INFO L225 Difference]: With dead ends: 50532 [2022-11-03 02:28:20,582 INFO L226 Difference]: Without dead ends: 26782 [2022-11-03 02:28:20,768 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 [2022-11-03 02:28:20,769 INFO L413 NwaCegarLoop]: 5041 mSDtfsCounter, 2834 mSDsluCounter, 3233 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2834 SdHoareTripleChecker+Valid, 7916 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:28:20,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2834 Valid, 7916 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 912 Invalid, 1 Unknown, 0 Unchecked, 12.9s Time] [2022-11-03 02:28:20,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26782 states. [2022-11-03 02:28:22,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26782 to 26725. [2022-11-03 02:28:22,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26725 states, 15600 states have (on average 1.274551282051282) internal successors, (19883), 16401 states have internal predecessors, (19883), 8848 states have call successors, (8848), 2290 states have call predecessors, (8848), 2276 states have return successors, (9008), 8722 states have call predecessors, (9008), 8820 states have call successors, (9008) [2022-11-03 02:28:22,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26725 states to 26725 states and 37739 transitions. [2022-11-03 02:28:22,330 INFO L78 Accepts]: Start accepts. Automaton has 26725 states and 37739 transitions. Word has length 157 [2022-11-03 02:28:22,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:28:22,331 INFO L495 AbstractCegarLoop]: Abstraction has 26725 states and 37739 transitions. [2022-11-03 02:28:22,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 02:28:22,331 INFO L276 IsEmpty]: Start isEmpty. Operand 26725 states and 37739 transitions. [2022-11-03 02:28:22,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2022-11-03 02:28:22,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:22,480 INFO L195 NwaCegarLoop]: trace histogram [15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:28:22,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:28:22,481 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:28:22,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:22,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1008146556, now seen corresponding path program 1 times [2022-11-03 02:28:22,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:28:22,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257742438] [2022-11-03 02:28:22,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:22,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:28:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:23,835 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-11-03 02:28:23,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:28:23,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257742438] [2022-11-03 02:28:23,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257742438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:28:23,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:28:23,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:28:23,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974611753] [2022-11-03 02:28:23,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:28:23,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:28:23,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:28:23,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:28:23,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:28:23,838 INFO L87 Difference]: Start difference. First operand 26725 states and 37739 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2022-11-03 02:28:33,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:28:43,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:46,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:28:46,209 INFO L93 Difference]: Finished difference Result 74797 states and 105293 transitions. [2022-11-03 02:28:46,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:28:46,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) Word has length 563 [2022-11-03 02:28:46,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:28:46,549 INFO L225 Difference]: With dead ends: 74797 [2022-11-03 02:28:46,549 INFO L226 Difference]: Without dead ends: 48075 [2022-11-03 02:28:46,623 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 [2022-11-03 02:28:46,624 INFO L413 NwaCegarLoop]: 7949 mSDtfsCounter, 4621 mSDsluCounter, 4925 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4622 SdHoareTripleChecker+Valid, 12409 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:28:46,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4622 Valid, 12409 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1320 Invalid, 2 Unknown, 0 Unchecked, 19.1s Time] [2022-11-03 02:28:46,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48075 states. [2022-11-03 02:28:49,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48075 to 48043. [2022-11-03 02:28:49,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48043 states, 27982 states have (on average 1.2719962833249947) internal successors, (35593), 29470 states have internal predecessors, (35593), 15828 states have call successors, (15828), 4258 states have call predecessors, (15828), 4232 states have return successors, (16100), 15596 states have call predecessors, (16100), 15788 states have call successors, (16100) [2022-11-03 02:28:49,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48043 states to 48043 states and 67521 transitions. [2022-11-03 02:28:49,808 INFO L78 Accepts]: Start accepts. Automaton has 48043 states and 67521 transitions. Word has length 563 [2022-11-03 02:28:49,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:28:49,808 INFO L495 AbstractCegarLoop]: Abstraction has 48043 states and 67521 transitions. [2022-11-03 02:28:49,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2022-11-03 02:28:49,809 INFO L276 IsEmpty]: Start isEmpty. Operand 48043 states and 67521 transitions. [2022-11-03 02:28:49,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2022-11-03 02:28:49,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:49,983 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:28:49,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 02:28:49,983 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:28:49,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:49,984 INFO L85 PathProgramCache]: Analyzing trace with hash -341236868, now seen corresponding path program 1 times [2022-11-03 02:28:49,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:28:49,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827044320] [2022-11-03 02:28:49,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:49,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:28:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:51,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1070 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2022-11-03 02:28:51,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:28:51,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827044320] [2022-11-03 02:28:51,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827044320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:28:51,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:28:51,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:28:51,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346852808] [2022-11-03 02:28:51,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:28:51,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:28:51,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:28:51,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:28:51,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:28:51,375 INFO L87 Difference]: Start difference. First operand 48043 states and 67521 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 2 states have call successors, (91), 2 states have call predecessors, (91), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) [2022-11-03 02:28:59,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:29:10,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:10,050 INFO L93 Difference]: Finished difference Result 87134 states and 121853 transitions. [2022-11-03 02:29:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:10,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 2 states have call successors, (91), 2 states have call predecessors, (91), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) Word has length 621 [2022-11-03 02:29:10,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:10,349 INFO L225 Difference]: With dead ends: 87134 [2022-11-03 02:29:10,349 INFO L226 Difference]: Without dead ends: 39102 [2022-11-03 02:29:10,481 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 [2022-11-03 02:29:10,482 INFO L413 NwaCegarLoop]: 6605 mSDtfsCounter, 3856 mSDsluCounter, 4975 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3858 SdHoareTripleChecker+Valid, 11114 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:10,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3858 Valid, 11114 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1103 Invalid, 1 Unknown, 0 Unchecked, 15.8s Time] [2022-11-03 02:29:10,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39102 states. [2022-11-03 02:29:12,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39102 to 37825. [2022-11-03 02:29:12,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37825 states, 22144 states have (on average 1.272489161849711) internal successors, (28178), 23275 states have internal predecessors, (28178), 12149 states have call successors, (12149), 3545 states have call predecessors, (12149), 3531 states have return successors, (12359), 11999 states have call predecessors, (12359), 12115 states have call successors, (12359) [2022-11-03 02:29:12,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37825 states to 37825 states and 52686 transitions. [2022-11-03 02:29:12,785 INFO L78 Accepts]: Start accepts. Automaton has 37825 states and 52686 transitions. Word has length 621 [2022-11-03 02:29:12,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:12,785 INFO L495 AbstractCegarLoop]: Abstraction has 37825 states and 52686 transitions. [2022-11-03 02:29:12,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 2 states have call successors, (91), 2 states have call predecessors, (91), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) [2022-11-03 02:29:12,786 INFO L276 IsEmpty]: Start isEmpty. Operand 37825 states and 52686 transitions. [2022-11-03 02:29:12,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2022-11-03 02:29:12,944 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:12,945 INFO L195 NwaCegarLoop]: trace histogram [17, 12, 12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:12,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 02:29:12,946 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:12,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:12,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1579330193, now seen corresponding path program 1 times [2022-11-03 02:29:12,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:12,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870521208] [2022-11-03 02:29:12,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:12,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:15,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1233 trivial. 0 not checked. [2022-11-03 02:29:15,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:15,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870521208] [2022-11-03 02:29:15,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870521208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:15,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:15,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:29:15,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914054482] [2022-11-03 02:29:15,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:15,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:29:15,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:15,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:29:15,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:29:15,245 INFO L87 Difference]: Start difference. First operand 37825 states and 52686 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 2 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2022-11-03 02:29:25,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:29:35,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:35,091 INFO L93 Difference]: Finished difference Result 70545 states and 98536 transitions. [2022-11-03 02:29:35,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:29:35,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 2 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) Word has length 657 [2022-11-03 02:29:35,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:35,219 INFO L225 Difference]: With dead ends: 70545 [2022-11-03 02:29:35,219 INFO L226 Difference]: Without dead ends: 37867 [2022-11-03 02:29:35,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:29:35,300 INFO L413 NwaCegarLoop]: 4520 mSDtfsCounter, 7 mSDsluCounter, 9950 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 13532 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:35,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 13532 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1440 Invalid, 1 Unknown, 0 Unchecked, 17.6s Time] [2022-11-03 02:29:35,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37867 states. [2022-11-03 02:29:37,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37867 to 37853. [2022-11-03 02:29:37,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37853 states, 22166 states have (on average 1.2722187133447622) internal successors, (28200), 23300 states have internal predecessors, (28200), 12152 states have call successors, (12152), 3545 states have call predecessors, (12152), 3534 states have return successors, (12367), 12002 states have call predecessors, (12367), 12118 states have call successors, (12367) [2022-11-03 02:29:37,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37853 states to 37853 states and 52719 transitions. [2022-11-03 02:29:37,513 INFO L78 Accepts]: Start accepts. Automaton has 37853 states and 52719 transitions. Word has length 657 [2022-11-03 02:29:37,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:37,514 INFO L495 AbstractCegarLoop]: Abstraction has 37853 states and 52719 transitions. [2022-11-03 02:29:37,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 2 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2022-11-03 02:29:37,515 INFO L276 IsEmpty]: Start isEmpty. Operand 37853 states and 52719 transitions. [2022-11-03 02:29:37,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2022-11-03 02:29:37,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:37,622 INFO L195 NwaCegarLoop]: trace histogram [22, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:37,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 02:29:37,622 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:37,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:37,623 INFO L85 PathProgramCache]: Analyzing trace with hash -671527229, now seen corresponding path program 1 times [2022-11-03 02:29:37,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:37,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266271285] [2022-11-03 02:29:37,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:37,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:39,080 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2022-11-03 02:29:39,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:39,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266271285] [2022-11-03 02:29:39,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266271285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:39,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:39,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:29:39,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863544966] [2022-11-03 02:29:39,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:39,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:29:39,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:39,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:29:39,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:39,084 INFO L87 Difference]: Start difference. First operand 37853 states and 52719 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 3 states have call successors, (127), 2 states have call predecessors, (127), 1 states have return successors, (114), 3 states have call predecessors, (114), 3 states have call successors, (114) [2022-11-03 02:29:46,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:48,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:29:55,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:01,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:01,526 INFO L93 Difference]: Finished difference Result 95596 states and 133440 transitions. [2022-11-03 02:30:01,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:30:01,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 3 states have call successors, (127), 2 states have call predecessors, (127), 1 states have return successors, (114), 3 states have call predecessors, (114), 3 states have call successors, (114) Word has length 706 [2022-11-03 02:30:01,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:01,763 INFO L225 Difference]: With dead ends: 95596 [2022-11-03 02:30:01,763 INFO L226 Difference]: Without dead ends: 58357 [2022-11-03 02:30:01,870 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 [2022-11-03 02:30:01,870 INFO L413 NwaCegarLoop]: 6991 mSDtfsCounter, 4902 mSDsluCounter, 4662 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4905 SdHoareTripleChecker+Valid, 11226 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:01,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4905 Valid, 11226 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1081 Invalid, 2 Unknown, 0 Unchecked, 19.0s Time] [2022-11-03 02:30:01,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58357 states. [2022-11-03 02:30:05,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58357 to 58328. [2022-11-03 02:30:05,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58328 states, 34171 states have (on average 1.273477510169442) internal successors, (43516), 35943 states have internal predecessors, (43516), 18801 states have call successors, (18801), 5367 states have call predecessors, (18801), 5355 states have return successors, (19126), 18565 states have call predecessors, (19126), 18752 states have call successors, (19126) [2022-11-03 02:30:05,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58328 states to 58328 states and 81443 transitions. [2022-11-03 02:30:05,357 INFO L78 Accepts]: Start accepts. Automaton has 58328 states and 81443 transitions. Word has length 706 [2022-11-03 02:30:05,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:30:05,358 INFO L495 AbstractCegarLoop]: Abstraction has 58328 states and 81443 transitions. [2022-11-03 02:30:05,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 3 states have call successors, (127), 2 states have call predecessors, (127), 1 states have return successors, (114), 3 states have call predecessors, (114), 3 states have call successors, (114) [2022-11-03 02:30:05,358 INFO L276 IsEmpty]: Start isEmpty. Operand 58328 states and 81443 transitions. [2022-11-03 02:30:05,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2022-11-03 02:30:05,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:05,483 INFO L195 NwaCegarLoop]: trace histogram [18, 8, 8, 8, 8, 8, 6, 6, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:30:05,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-03 02:30:05,483 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:05,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:05,484 INFO L85 PathProgramCache]: Analyzing trace with hash -189197945, now seen corresponding path program 1 times [2022-11-03 02:30:05,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:30:05,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425686915] [2022-11-03 02:30:05,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:05,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:30:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:07,902 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2022-11-03 02:30:07,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:30:07,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425686915] [2022-11-03 02:30:07,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425686915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:30:07,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:30:07,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:30:07,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467003132] [2022-11-03 02:30:07,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:30:07,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:30:07,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:30:07,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:30:07,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:30:07,907 INFO L87 Difference]: Start difference. First operand 58328 states and 81443 transitions. Second operand has 5 states, 5 states have (on average 55.8) internal successors, (279), 4 states have internal predecessors, (279), 2 states have call successors, (125), 2 states have call predecessors, (125), 3 states have return successors, (113), 3 states have call predecessors, (113), 2 states have call successors, (113) [2022-11-03 02:30:20,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:30:26,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:33,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:35,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:35,647 INFO L93 Difference]: Finished difference Result 116204 states and 163927 transitions. [2022-11-03 02:30:35,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:30:35,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.8) internal successors, (279), 4 states have internal predecessors, (279), 2 states have call successors, (125), 2 states have call predecessors, (125), 3 states have return successors, (113), 3 states have call predecessors, (113), 2 states have call successors, (113) Word has length 628 [2022-11-03 02:30:35,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:35,897 INFO L225 Difference]: With dead ends: 116204 [2022-11-03 02:30:35,897 INFO L226 Difference]: Without dead ends: 58490 [2022-11-03 02:30:36,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:30:36,080 INFO L413 NwaCegarLoop]: 4524 mSDtfsCounter, 3 mSDsluCounter, 14968 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18086 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:36,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 18086 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1890 Invalid, 2 Unknown, 0 Unchecked, 24.1s Time] [2022-11-03 02:30:36,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58490 states. [2022-11-03 02:30:39,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58490 to 58436. [2022-11-03 02:30:39,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58436 states, 34252 states have (on average 1.2728307836038772) internal successors, (43597), 36024 states have internal predecessors, (43597), 18801 states have call successors, (18801), 5367 states have call predecessors, (18801), 5382 states have return successors, (19167), 18592 states have call predecessors, (19167), 18752 states have call successors, (19167) [2022-11-03 02:30:39,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58436 states to 58436 states and 81565 transitions. [2022-11-03 02:30:39,530 INFO L78 Accepts]: Start accepts. Automaton has 58436 states and 81565 transitions. Word has length 628 [2022-11-03 02:30:39,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:30:39,532 INFO L495 AbstractCegarLoop]: Abstraction has 58436 states and 81565 transitions. [2022-11-03 02:30:39,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.8) internal successors, (279), 4 states have internal predecessors, (279), 2 states have call successors, (125), 2 states have call predecessors, (125), 3 states have return successors, (113), 3 states have call predecessors, (113), 2 states have call successors, (113) [2022-11-03 02:30:39,532 INFO L276 IsEmpty]: Start isEmpty. Operand 58436 states and 81565 transitions. [2022-11-03 02:30:39,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2022-11-03 02:30:39,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:39,640 INFO L195 NwaCegarLoop]: trace histogram [18, 8, 8, 8, 8, 8, 6, 6, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:30:39,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-03 02:30:39,641 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:39,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:39,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1789477131, now seen corresponding path program 1 times [2022-11-03 02:30:39,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:30:39,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636832051] [2022-11-03 02:30:39,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:39,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:30:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:41,725 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2022-11-03 02:30:41,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:30:41,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636832051] [2022-11-03 02:30:41,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636832051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:30:41,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:30:41,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:30:41,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657972447] [2022-11-03 02:30:41,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:30:41,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:30:41,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:30:41,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:30:41,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:30:41,729 INFO L87 Difference]: Start difference. First operand 58436 states and 81565 transitions. Second operand has 5 states, 5 states have (on average 55.8) internal successors, (279), 4 states have internal predecessors, (279), 2 states have call successors, (125), 2 states have call predecessors, (125), 3 states have return successors, (113), 3 states have call predecessors, (113), 2 states have call successors, (113) [2022-11-03 02:30:54,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:31:08,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:31:11,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:31:11,691 INFO L93 Difference]: Finished difference Result 116430 states and 165739 transitions. [2022-11-03 02:31:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:31:11,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.8) internal successors, (279), 4 states have internal predecessors, (279), 2 states have call successors, (125), 2 states have call predecessors, (125), 3 states have return successors, (113), 3 states have call predecessors, (113), 2 states have call successors, (113) Word has length 628 [2022-11-03 02:31:11,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:31:11,953 INFO L225 Difference]: With dead ends: 116430 [2022-11-03 02:31:11,953 INFO L226 Difference]: Without dead ends: 58608 [2022-11-03 02:31:12,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:31:12,133 INFO L413 NwaCegarLoop]: 4517 mSDtfsCounter, 5 mSDsluCounter, 14944 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 18055 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:31:12,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 18055 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1889 Invalid, 2 Unknown, 0 Unchecked, 26.0s Time] [2022-11-03 02:31:12,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58608 states. [2022-11-03 02:31:15,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58608 to 58608. [2022-11-03 02:31:15,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58608 states, 34381 states have (on average 1.2718071027602456) internal successors, (43726), 36153 states have internal predecessors, (43726), 18801 states have call successors, (18801), 5367 states have call predecessors, (18801), 5425 states have return successors, (19253), 18635 states have call predecessors, (19253), 18752 states have call successors, (19253) [2022-11-03 02:31:15,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58608 states to 58608 states and 81780 transitions. [2022-11-03 02:31:15,870 INFO L78 Accepts]: Start accepts. Automaton has 58608 states and 81780 transitions. Word has length 628 [2022-11-03 02:31:15,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:31:15,872 INFO L495 AbstractCegarLoop]: Abstraction has 58608 states and 81780 transitions. [2022-11-03 02:31:15,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.8) internal successors, (279), 4 states have internal predecessors, (279), 2 states have call successors, (125), 2 states have call predecessors, (125), 3 states have return successors, (113), 3 states have call predecessors, (113), 2 states have call successors, (113) [2022-11-03 02:31:15,872 INFO L276 IsEmpty]: Start isEmpty. Operand 58608 states and 81780 transitions. [2022-11-03 02:31:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2022-11-03 02:31:15,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:31:15,985 INFO L195 NwaCegarLoop]: trace histogram [23, 9, 9, 9, 9, 9, 7, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:31:15,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-03 02:31:15,986 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:31:15,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:31:15,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1211718949, now seen corresponding path program 1 times [2022-11-03 02:31:15,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:31:15,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770137609] [2022-11-03 02:31:15,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:15,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:31:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat