./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-08_1a-drivers--scsi--aic7xxx--aic79xx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--aic7xxx--aic79xx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V --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 3fa6dd525c2adaafe53b876fdbed025b993c40d77eaefc65082e8a80cc416bd7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:24:59,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:24:59,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:24:59,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:24:59,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:24:59,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:24:59,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:24:59,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:24:59,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:24:59,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:24:59,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:24:59,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:24:59,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:24:59,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:24:59,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:24:59,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:24:59,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:24:59,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:24:59,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:24:59,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:24:59,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:24:59,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:24:59,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:24:59,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:24:59,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:24:59,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:24:59,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:24:59,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:24:59,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:24:59,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:24:59,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:24:59,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:24:59,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:24:59,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:24:59,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:24:59,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:24:59,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:24:59,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:24:59,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:24:59,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:24:59,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:24:59,970 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:25:00,014 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:25:00,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:25:00,015 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:25:00,015 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:25:00,016 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:25:00,016 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:25:00,017 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:25:00,017 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:25:00,017 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:25:00,017 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:25:00,019 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:25:00,019 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:25:00,019 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:25:00,019 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:25:00,020 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:25:00,020 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:25:00,020 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:25:00,020 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:25:00,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:25:00,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:25:00,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:25:00,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:25:00,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:25:00,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:25:00,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:25:00,023 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:25:00,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:25:00,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:25:00,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:25:00,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:25:00,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:25:00,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:25:00,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:25:00,027 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:25:00,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:25:00,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:25:00,027 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:25:00,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:25:00,028 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fa6dd525c2adaafe53b876fdbed025b993c40d77eaefc65082e8a80cc416bd7 [2021-11-23 02:25:00,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:25:00,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:25:00,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:25:00,402 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:25:00,402 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:25:00,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--aic7xxx--aic79xx.ko-entry_point.cil.out.i [2021-11-23 02:25:00,481 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/data/3e7814ca0/97005545040140fa9994864a24f5d0ef/FLAG1a36f0e82 [2021-11-23 02:25:01,806 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:25:01,807 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--aic7xxx--aic79xx.ko-entry_point.cil.out.i [2021-11-23 02:25:01,907 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/data/3e7814ca0/97005545040140fa9994864a24f5d0ef/FLAG1a36f0e82 [2021-11-23 02:25:02,361 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/data/3e7814ca0/97005545040140fa9994864a24f5d0ef [2021-11-23 02:25:02,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:25:02,367 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:25:02,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:25:02,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:25:02,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:25:02,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:25:02" (1/1) ... [2021-11-23 02:25:02,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39773380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:02, skipping insertion in model container [2021-11-23 02:25:02,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:25:02" (1/1) ... [2021-11-23 02:25:02,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:25:02,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:25:09,174 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_1a8b30f2-867c-491f-8284-006371053c71/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--aic7xxx--aic79xx.ko-entry_point.cil.out.i[681559,681572] [2021-11-23 02:25:09,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:25:09,753 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:25:11,181 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_1a8b30f2-867c-491f-8284-006371053c71/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--aic7xxx--aic79xx.ko-entry_point.cil.out.i[681559,681572] [2021-11-23 02:25:11,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:25:11,902 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:25:11,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:11 WrapperNode [2021-11-23 02:25:11,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:25:11,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:25:11,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:25:11,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:25:11,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:11" (1/1) ... [2021-11-23 02:25:12,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:11" (1/1) ... [2021-11-23 02:25:13,174 INFO L137 Inliner]: procedures = 588, calls = 15097, calls flagged for inlining = 279, calls inlined = 274, statements flattened = 23400 [2021-11-23 02:25:13,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:25:13,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:25:13,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:25:13,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:25:13,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:11" (1/1) ... [2021-11-23 02:25:13,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:11" (1/1) ... [2021-11-23 02:25:13,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:11" (1/1) ... [2021-11-23 02:25:13,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:11" (1/1) ... [2021-11-23 02:25:14,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:11" (1/1) ... [2021-11-23 02:25:14,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:11" (1/1) ... [2021-11-23 02:25:14,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:11" (1/1) ... [2021-11-23 02:25:14,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:25:14,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:25:14,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:25:14,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:25:14,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:11" (1/1) ... [2021-11-23 02:25:14,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:25:14,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:25:14,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:25:14,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:25:14,604 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_platform_abort_scbs [2021-11-23 02:25:14,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_platform_abort_scbs [2021-11-23 02:25:14,604 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_dma_tag_destroy [2021-11-23 02:25:14,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_dma_tag_destroy [2021-11-23 02:25:14,604 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_set_scsi_status [2021-11-23 02:25:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_set_scsi_status [2021-11-23 02:25:14,605 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_shutdown [2021-11-23 02:25:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_shutdown [2021-11-23 02:25:14,605 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-23 02:25:14,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_4 [2021-11-23 02:25:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_4 [2021-11-23 02:25:14,606 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2021-11-23 02:25:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2021-11-23 02:25:14,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:25:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:25:14,606 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_pci_read_config [2021-11-23 02:25:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_pci_read_config [2021-11-23 02:25:14,607 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_stat_timer [2021-11-23 02:25:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_stat_timer [2021-11-23 02:25:14,607 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_flush_qoutfifo [2021-11-23 02:25:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_flush_qoutfifo [2021-11-23 02:25:14,607 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2021-11-23 02:25:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2021-11-23 02:25:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_download_instr [2021-11-23 02:25:14,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_download_instr [2021-11-23 02:25:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_pci_dev_remove [2021-11-23 02:25:14,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_pci_dev_remove [2021-11-23 02:25:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:25:14,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:25:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_controller_info [2021-11-23 02:25:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_controller_info [2021-11-23 02:25:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_reset [2021-11-23 02:25:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_reset [2021-11-23 02:25:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask [2021-11-23 02:25:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask [2021-11-23 02:25:14,610 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_check_patch [2021-11-23 02:25:14,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_check_patch [2021-11-23 02:25:14,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_6 [2021-11-23 02:25:14,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_6 [2021-11-23 02:25:14,610 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_sg_virt_to_bus [2021-11-23 02:25:14,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_sg_virt_to_bus [2021-11-23 02:25:14,611 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_update_pending_scbs [2021-11-23 02:25:14,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_update_pending_scbs [2021-11-23 02:25:14,611 INFO L130 BoogieDeclarations]: Found specification of procedure sdev_id [2021-11-23 02:25:14,611 INFO L138 BoogieDeclarations]: Found implementation of procedure sdev_id [2021-11-23 02:25:14,611 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_acquire_seeprom [2021-11-23 02:25:14,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_acquire_seeprom [2021-11-23 02:25:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_handle_transmission_error [2021-11-23 02:25:14,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_handle_transmission_error [2021-11-23 02:25:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_target_in_softc [2021-11-23 02:25:14,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_target_in_softc [2021-11-23 02:25:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_lookup_phase_entry [2021-11-23 02:25:14,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_lookup_phase_entry [2021-11-23 02:25:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_parse_msg [2021-11-23 02:25:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_parse_msg [2021-11-23 02:25:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 02:25:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 02:25:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_pci_intr [2021-11-23 02:25:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_pci_intr [2021-11-23 02:25:14,614 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_platform_set_tags [2021-11-23 02:25:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_platform_set_tags [2021-11-23 02:25:14,614 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_pci_dev_resume [2021-11-23 02:25:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_pci_dev_resume [2021-11-23 02:25:14,614 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_done [2021-11-23 02:25:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_done [2021-11-23 02:25:14,615 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 02:25:14,615 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 02:25:14,615 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_handle_message_phase [2021-11-23 02:25:14,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_handle_message_phase [2021-11-23 02:25:14,615 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_sglist_size [2021-11-23 02:25:14,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_sglist_size [2021-11-23 02:25:14,616 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_cmd_get_transaction_status [2021-11-23 02:25:14,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_cmd_get_transaction_status [2021-11-23 02:25:14,616 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_verify_cksum [2021-11-23 02:25:14,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_verify_cksum [2021-11-23 02:25:14,616 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 02:25:14,616 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 02:25:14,617 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_dmamap_unload [2021-11-23 02:25:14,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_dmamap_unload [2021-11-23 02:25:14,617 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_busy_tcl [2021-11-23 02:25:14,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_busy_tcl [2021-11-23 02:25:14,617 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_construct_wdtr [2021-11-23 02:25:14,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_construct_wdtr [2021-11-23 02:25:14,618 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_handle_lqiphase_error [2021-11-23 02:25:14,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_handle_lqiphase_error [2021-11-23 02:25:14,618 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_info [2021-11-23 02:25:14,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_info [2021-11-23 02:25:14,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:25:14,618 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-23 02:25:14,619 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-23 02:25:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_delay [2021-11-23 02:25:14,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_delay [2021-11-23 02:25:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_queue_cmd_complete [2021-11-23 02:25:14,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_queue_cmd_complete [2021-11-23 02:25:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_sync_scb [2021-11-23 02:25:14,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_sync_scb [2021-11-23 02:25:14,620 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_handle_seqint [2021-11-23 02:25:14,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_handle_seqint [2021-11-23 02:25:14,620 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_handle_msg_reject [2021-11-23 02:25:14,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_handle_msg_reject [2021-11-23 02:25:14,620 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_add_host_with_dma [2021-11-23 02:25:14,621 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_add_host_with_dma [2021-11-23 02:25:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_alloc_tstate [2021-11-23 02:25:14,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_alloc_tstate [2021-11-23 02:25:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 02:25:14,621 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 02:25:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_clear_msg_state [2021-11-23 02:25:14,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_clear_msg_state [2021-11-23 02:25:14,622 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_resume [2021-11-23 02:25:14,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_resume [2021-11-23 02:25:14,622 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_inl_scbram [2021-11-23 02:25:14,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_inl_scbram [2021-11-23 02:25:14,622 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_search_scb_list [2021-11-23 02:25:14,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_search_scb_list [2021-11-23 02:25:14,623 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_construct_ppr [2021-11-23 02:25:14,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_construct_ppr [2021-11-23 02:25:14,623 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_validate_offset [2021-11-23 02:25:14,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_validate_offset [2021-11-23 02:25:14,623 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_match_scb [2021-11-23 02:25:14,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_match_scb [2021-11-23 02:25:14,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:25:14,624 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_reset_cmds_pending [2021-11-23 02:25:14,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_reset_cmds_pending [2021-11-23 02:25:14,624 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_get_scsi_status [2021-11-23 02:25:14,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_get_scsi_status [2021-11-23 02:25:14,624 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_free_scb [2021-11-23 02:25:14,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_free_scb [2021-11-23 02:25:14,625 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-11-23 02:25:14,625 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-11-23 02:25:14,625 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_known_modes [2021-11-23 02:25:14,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_known_modes [2021-11-23 02:25:14,625 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_sg_setup [2021-11-23 02:25:14,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_sg_setup [2021-11-23 02:25:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:25:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_inw_scbram [2021-11-23 02:25:14,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_inw_scbram [2021-11-23 02:25:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:25:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_user_tagdepth [2021-11-23 02:25:14,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_user_tagdepth [2021-11-23 02:25:14,627 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_index_busy_tcl [2021-11-23 02:25:14,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_index_busy_tcl [2021-11-23 02:25:14,627 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_resolve_seqaddr [2021-11-23 02:25:14,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_resolve_seqaddr [2021-11-23 02:25:14,627 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_handle_scb_status [2021-11-23 02:25:14,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_handle_scb_status [2021-11-23 02:25:14,628 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_outw [2021-11-23 02:25:14,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_outw [2021-11-23 02:25:14,628 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_outq [2021-11-23 02:25:14,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_outq [2021-11-23 02:25:14,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:25:14,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:25:14,628 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_get_residual [2021-11-23 02:25:14,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_get_residual [2021-11-23 02:25:14,629 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_outl [2021-11-23 02:25:14,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_outl [2021-11-23 02:25:14,629 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_compile_devinfo [2021-11-23 02:25:14,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_compile_devinfo [2021-11-23 02:25:14,629 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_slave_configure [2021-11-23 02:25:14,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_slave_configure [2021-11-23 02:25:14,630 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_get_transaction_status [2021-11-23 02:25:14,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_get_transaction_status [2021-11-23 02:25:14,630 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_set_residual [2021-11-23 02:25:14,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_set_residual [2021-11-23 02:25:14,630 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_handle_scsiint [2021-11-23 02:25:14,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_handle_scsiint [2021-11-23 02:25:14,631 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_dump_card_state [2021-11-23 02:25:14,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_dump_card_state [2021-11-23 02:25:14,631 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_outb [2021-11-23 02:25:14,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_outb [2021-11-23 02:25:14,631 INFO L130 BoogieDeclarations]: Found specification of procedure spi_release_transport [2021-11-23 02:25:14,631 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_release_transport [2021-11-23 02:25:14,631 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_build_transfer_msg [2021-11-23 02:25:14,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_build_transfer_msg [2021-11-23 02:25:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_extract_mode_state [2021-11-23 02:25:14,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_extract_mode_state [2021-11-23 02:25:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_wait_seeprom [2021-11-23 02:25:14,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_wait_seeprom [2021-11-23 02:25:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-23 02:25:14,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-23 02:25:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_unbusy_tcl [2021-11-23 02:25:14,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_unbusy_tcl [2021-11-23 02:25:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_get_scbptr [2021-11-23 02:25:14,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_get_scbptr [2021-11-23 02:25:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:25:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_set_width [2021-11-23 02:25:14,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_set_width [2021-11-23 02:25:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2021-11-23 02:25:14,634 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2021-11-23 02:25:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_find_syncrate [2021-11-23 02:25:14,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_find_syncrate [2021-11-23 02:25:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_perrdiag_print [2021-11-23 02:25:14,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_perrdiag_print [2021-11-23 02:25:14,635 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_name [2021-11-23 02:25:14,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_name [2021-11-23 02:25:14,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:25:14,635 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_sg_size [2021-11-23 02:25:14,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_sg_size [2021-11-23 02:25:14,635 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_get_snscb_qoff [2021-11-23 02:25:14,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_get_snscb_qoff [2021-11-23 02:25:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:25:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:25:14,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:25:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2021-11-23 02:25:14,636 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2021-11-23 02:25:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_handle_scsi_status [2021-11-23 02:25:14,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_handle_scsi_status [2021-11-23 02:25:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_timer_reset [2021-11-23 02:25:14,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_timer_reset [2021-11-23 02:25:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2021-11-23 02:25:14,637 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2021-11-23 02:25:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:25:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:25:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_format_transinfo [2021-11-23 02:25:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_format_transinfo [2021-11-23 02:25:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_set_scbptr [2021-11-23 02:25:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_set_scbptr [2021-11-23 02:25:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_free [2021-11-23 02:25:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_free [2021-11-23 02:25:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_pci_write_config [2021-11-23 02:25:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_pci_write_config [2021-11-23 02:25:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_abort_scbs [2021-11-23 02:25:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_abort_scbs [2021-11-23 02:25:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_rem_col_list [2021-11-23 02:25:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_rem_col_list [2021-11-23 02:25:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_set_syncrate [2021-11-23 02:25:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_set_syncrate [2021-11-23 02:25:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_intr [2021-11-23 02:25:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_intr [2021-11-23 02:25:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_force_renegotiation [2021-11-23 02:25:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_force_renegotiation [2021-11-23 02:25:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_intr_enable [2021-11-23 02:25:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_intr_enable [2021-11-23 02:25:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_scb_devinfo [2021-11-23 02:25:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_scb_devinfo [2021-11-23 02:25:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_devlimited_syncrate [2021-11-23 02:25:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_devlimited_syncrate [2021-11-23 02:25:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_bus_reset [2021-11-23 02:25:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_bus_reset [2021-11-23 02:25:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_setup_iocell_workaround [2021-11-23 02:25:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_setup_iocell_workaround [2021-11-23 02:25:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_chip_init [2021-11-23 02:25:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_chip_init [2021-11-23 02:25:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_complete_scb [2021-11-23 02:25:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_complete_scb [2021-11-23 02:25:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_abort [2021-11-23 02:25:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_abort [2021-11-23 02:25:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_get_scb [2021-11-23 02:25:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_get_scb [2021-11-23 02:25:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_restart [2021-11-23 02:25:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_restart [2021-11-23 02:25:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_dmamem_alloc [2021-11-23 02:25:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_dmamem_alloc [2021-11-23 02:25:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_target_alloc [2021-11-23 02:25:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_target_alloc [2021-11-23 02:25:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_aic790X_setup [2021-11-23 02:25:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_aic790X_setup [2021-11-23 02:25:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_print_devinfo [2021-11-23 02:25:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_print_devinfo [2021-11-23 02:25:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_calc_residual [2021-11-23 02:25:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_calc_residual [2021-11-23 02:25:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:25:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:25:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_is_paused [2021-11-23 02:25:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_is_paused [2021-11-23 02:25:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_freeze_devq [2021-11-23 02:25:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_freeze_devq [2021-11-23 02:25:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_pause_and_flushwork [2021-11-23 02:25:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_pause_and_flushwork [2021-11-23 02:25:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-23 02:25:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-23 02:25:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_queue_abort_cmd [2021-11-23 02:25:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_queue_abort_cmd [2021-11-23 02:25:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_print_path [2021-11-23 02:25:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_print_path [2021-11-23 02:25:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_freeze_scb [2021-11-23 02:25:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_freeze_scb [2021-11-23 02:25:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:25:14,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:25:14,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:25:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:25:14,648 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_validate_width [2021-11-23 02:25:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_validate_width [2021-11-23 02:25:14,648 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_lookup_scb [2021-11-23 02:25:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_lookup_scb [2021-11-23 02:25:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-11-23 02:25:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-11-23 02:25:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_read_flexport [2021-11-23 02:25:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_read_flexport [2021-11-23 02:25:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_save_modes [2021-11-23 02:25:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_save_modes [2021-11-23 02:25:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_update_residual [2021-11-23 02:25:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_update_residual [2021-11-23 02:25:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_check_cmdcmpltqueues [2021-11-23 02:25:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_check_cmdcmpltqueues [2021-11-23 02:25:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_handle_pkt_busfree [2021-11-23 02:25:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_handle_pkt_busfree [2021-11-23 02:25:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_assert_modes [2021-11-23 02:25:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_assert_modes [2021-11-23 02:25:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_get_pci_slot [2021-11-23 02:25:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_get_pci_slot [2021-11-23 02:25:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_qinfifo_requeue_tail [2021-11-23 02:25:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_qinfifo_requeue_tail [2021-11-23 02:25:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_unlock [2021-11-23 02:25:14,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_unlock [2021-11-23 02:25:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_show_info [2021-11-23 02:25:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_show_info [2021-11-23 02:25:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 02:25:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 02:25:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_inb_scbram [2021-11-23 02:25:14,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_inb_scbram [2021-11-23 02:25:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:25:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:25:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 02:25:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 02:25:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_set_transaction_status [2021-11-23 02:25:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_set_transaction_status [2021-11-23 02:25:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_enable_coalescing [2021-11-23 02:25:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_enable_coalescing [2021-11-23 02:25:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:25:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-23 02:25:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-23 02:25:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:25:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_handle_nonpkt_busfree [2021-11-23 02:25:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_handle_nonpkt_busfree [2021-11-23 02:25:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_dma_tag_create [2021-11-23 02:25:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_dma_tag_create [2021-11-23 02:25:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_update_modes [2021-11-23 02:25:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_update_modes [2021-11-23 02:25:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_slave_alloc [2021-11-23 02:25:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_slave_alloc [2021-11-23 02:25:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_qinfifo_requeue [2021-11-23 02:25:14,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_qinfifo_requeue [2021-11-23 02:25:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_4btoul [2021-11-23 02:25:14,656 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_4btoul [2021-11-23 02:25:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_get_transfer_length [2021-11-23 02:25:14,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_get_transfer_length [2021-11-23 02:25:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:25:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_scsisigi_print [2021-11-23 02:25:14,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_scsisigi_print [2021-11-23 02:25:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_read_seeprom [2021-11-23 02:25:14,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_read_seeprom [2021-11-23 02:25:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_handle_devreset [2021-11-23 02:25:14,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_handle_devreset [2021-11-23 02:25:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-23 02:25:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_lqistat1_print [2021-11-23 02:25:14,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_lqistat1_print [2021-11-23 02:25:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_update_neg_request [2021-11-23 02:25:14,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_update_neg_request [2021-11-23 02:25:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_unpause [2021-11-23 02:25:14,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_unpause [2021-11-23 02:25:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_fetch_transinfo [2021-11-23 02:25:14,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_fetch_transinfo [2021-11-23 02:25:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-23 02:25:14,659 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-23 02:25:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_build_mode_state [2021-11-23 02:25:14,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_build_mode_state [2021-11-23 02:25:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_lock [2021-11-23 02:25:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_lock [2021-11-23 02:25:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_cmd_get_scsi_status [2021-11-23 02:25:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_cmd_get_scsi_status [2021-11-23 02:25:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_done_with_status [2021-11-23 02:25:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_done_with_status [2021-11-23 02:25:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_dev_reset [2021-11-23 02:25:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_dev_reset [2021-11-23 02:25:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dma_unmap [2021-11-23 02:25:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dma_unmap [2021-11-23 02:25:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_get_pci_bus [2021-11-23 02:25:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_get_pci_bus [2021-11-23 02:25:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_dump_sglist [2021-11-23 02:25:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_dump_sglist [2021-11-23 02:25:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_change_queue_depth [2021-11-23 02:25:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_change_queue_depth [2021-11-23 02:25:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_handle_hwerrint [2021-11-23 02:25:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_handle_hwerrint [2021-11-23 02:25:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_reset_channel [2021-11-23 02:25:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_reset_channel [2021-11-23 02:25:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_set_tags [2021-11-23 02:25:14,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_set_tags [2021-11-23 02:25:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_search_qinfifo [2021-11-23 02:25:14,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_search_qinfifo [2021-11-23 02:25:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_iocell_first_selection [2021-11-23 02:25:14,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_iocell_first_selection [2021-11-23 02:25:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_set_active_fifo [2021-11-23 02:25:14,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_set_active_fifo [2021-11-23 02:25:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-23 02:25:14,664 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-23 02:25:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_parse_brace_option [2021-11-23 02:25:14,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_parse_brace_option [2021-11-23 02:25:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_qinfifo_count [2021-11-23 02:25:14,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_qinfifo_count [2021-11-23 02:25:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_set_width [2021-11-23 02:25:14,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_set_width [2021-11-23 02:25:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_run_qoutfifo [2021-11-23 02:25:14,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_run_qoutfifo [2021-11-23 02:25:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_construct_sdtr [2021-11-23 02:25:14,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_construct_sdtr [2021-11-23 02:25:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_clear_fifo [2021-11-23 02:25:14,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_clear_fifo [2021-11-23 02:25:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_dmamap_load [2021-11-23 02:25:14,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_dmamap_load [2021-11-23 02:25:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_find_busy_tcl [2021-11-23 02:25:14,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_find_busy_tcl [2021-11-23 02:25:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_get_signalling [2021-11-23 02:25:14,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_get_signalling [2021-11-23 02:25:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_clear_intstat [2021-11-23 02:25:14,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_clear_intstat [2021-11-23 02:25:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_sg_bus_to_virt [2021-11-23 02:25:14,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_sg_bus_to_virt [2021-11-23 02:25:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-23 02:25:14,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-23 02:25:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_update_neg_table [2021-11-23 02:25:14,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_update_neg_table [2021-11-23 02:25:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:25:14,668 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:25:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_loadseq [2021-11-23 02:25:14,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_loadseq [2021-11-23 02:25:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_clear_critical_section [2021-11-23 02:25:14,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_clear_critical_section [2021-11-23 02:25:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-11-23 02:25:14,669 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-11-23 02:25:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:25:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_fetch_devinfo [2021-11-23 02:25:14,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_fetch_devinfo [2021-11-23 02:25:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_queue [2021-11-23 02:25:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_queue [2021-11-23 02:25:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:25:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:25:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_flush_device_writes [2021-11-23 02:25:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_flush_device_writes [2021-11-23 02:25:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_dmamem_free [2021-11-23 02:25:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_dmamem_free [2021-11-23 02:25:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_set_sense_residual [2021-11-23 02:25:14,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_set_sense_residual [2021-11-23 02:25:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_release_seeprom [2021-11-23 02:25:14,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_release_seeprom [2021-11-23 02:25:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-23 02:25:14,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-23 02:25:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_linux_target_destroy [2021-11-23 02:25:14,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_linux_target_destroy [2021-11-23 02:25:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-23 02:25:14,672 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-23 02:25:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_shost [2021-11-23 02:25:14,672 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_shost [2021-11-23 02:25:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_cmd_set_transaction_status [2021-11-23 02:25:14,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_cmd_set_transaction_status [2021-11-23 02:25:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_pause [2021-11-23 02:25:14,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_pause [2021-11-23 02:25:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_get_pci_function [2021-11-23 02:25:14,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_get_pci_function [2021-11-23 02:25:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_alloc_scbs [2021-11-23 02:25:14,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_alloc_scbs [2021-11-23 02:25:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_4 [2021-11-23 02:25:14,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_4 [2021-11-23 02:25:14,674 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_inl [2021-11-23 02:25:14,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_inl [2021-11-23 02:25:14,674 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_set_hnscb_qoff [2021-11-23 02:25:14,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_set_hnscb_qoff [2021-11-23 02:25:14,674 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_inq [2021-11-23 02:25:14,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_inq [2021-11-23 02:25:14,675 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_assert_atn [2021-11-23 02:25:14,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_assert_atn [2021-11-23 02:25:14,675 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_restore_modes [2021-11-23 02:25:14,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_restore_modes [2021-11-23 02:25:14,675 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_sent_msg [2021-11-23 02:25:14,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_sent_msg [2021-11-23 02:25:14,675 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_inw [2021-11-23 02:25:14,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_inw [2021-11-23 02:25:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_wait_flexport [2021-11-23 02:25:14,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_wait_flexport [2021-11-23 02:25:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_send_async [2021-11-23 02:25:14,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_send_async [2021-11-23 02:25:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_add_col_list [2021-11-23 02:25:14,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_add_col_list [2021-11-23 02:25:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_write_flexport [2021-11-23 02:25:14,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_write_flexport [2021-11-23 02:25:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_handle_proto_violation [2021-11-23 02:25:14,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_handle_proto_violation [2021-11-23 02:25:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 02:25:14,677 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 02:25:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_setup_data_scb [2021-11-23 02:25:14,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_setup_data_scb [2021-11-23 02:25:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_inb [2021-11-23 02:25:14,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_inb [2021-11-23 02:25:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_reset_current_bus [2021-11-23 02:25:14,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_reset_current_bus [2021-11-23 02:25:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_transport_device_data [2021-11-23 02:25:14,678 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_transport_device_data [2021-11-23 02:25:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:25:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_print_register [2021-11-23 02:25:14,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_print_register [2021-11-23 02:25:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-23 02:25:14,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-23 02:25:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_set_modes [2021-11-23 02:25:14,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_set_modes [2021-11-23 02:25:14,680 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_sync_qoutfifo [2021-11-23 02:25:14,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_sync_qoutfifo [2021-11-23 02:25:14,680 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_sglist_allocsize [2021-11-23 02:25:14,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_sglist_allocsize [2021-11-23 02:25:14,680 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_queue_scb [2021-11-23 02:25:14,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_queue_scb [2021-11-23 02:25:14,680 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_get_sense_bufsize [2021-11-23 02:25:14,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_get_sense_bufsize [2021-11-23 02:25:14,681 INFO L130 BoogieDeclarations]: Found specification of procedure ahd_lastphase_print [2021-11-23 02:25:14,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ahd_lastphase_print [2021-11-23 02:25:16,704 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:25:16,710 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:25:21,495 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:26:06,988 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:26:16,093 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:26:16,094 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 02:26:16,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:26:16 BoogieIcfgContainer [2021-11-23 02:26:16,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:26:16,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:26:16,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:26:16,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:26:16,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:25:02" (1/3) ... [2021-11-23 02:26:16,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742fe52e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:26:16, skipping insertion in model container [2021-11-23 02:26:16,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:11" (2/3) ... [2021-11-23 02:26:16,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742fe52e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:26:16, skipping insertion in model container [2021-11-23 02:26:16,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:26:16" (3/3) ... [2021-11-23 02:26:16,112 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--aic7xxx--aic79xx.ko-entry_point.cil.out.i [2021-11-23 02:26:16,117 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:26:16,117 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:26:16,187 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:26:16,194 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:26:16,194 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:26:16,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 5831 states, 3260 states have (on average 1.3061349693251534) internal successors, (4258), 3458 states have internal predecessors, (4258), 2327 states have call successors, (2327), 243 states have call predecessors, (2327), 242 states have return successors, (2322), 2262 states have call predecessors, (2322), 2322 states have call successors, (2322) [2021-11-23 02:26:16,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-23 02:26:16,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:26:16,348 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:26:16,352 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:26:16,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:26:16,362 INFO L85 PathProgramCache]: Analyzing trace with hash 524501057, now seen corresponding path program 1 times [2021-11-23 02:26:16,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:26:16,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127069862] [2021-11-23 02:26:16,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:26:16,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:26:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:26:19,258 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2021-11-23 02:26:19,259 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:26:19,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127069862] [2021-11-23 02:26:19,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127069862] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:26:19,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:26:19,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:26:19,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621513233] [2021-11-23 02:26:19,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:26:19,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:26:19,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:26:19,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:26:19,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:26:19,327 INFO L87 Difference]: Start difference. First operand has 5831 states, 3260 states have (on average 1.3061349693251534) internal successors, (4258), 3458 states have internal predecessors, (4258), 2327 states have call successors, (2327), 243 states have call predecessors, (2327), 242 states have return successors, (2322), 2262 states have call predecessors, (2322), 2322 states have call successors, (2322) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 02:26:21,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:23,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:25,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:27,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 02:26:31,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:37,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:43,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:49,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:51,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:57,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:58,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:26:58,241 INFO L93 Difference]: Finished difference Result 17351 states and 26518 transitions. [2021-11-23 02:26:58,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:26:58,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 161 [2021-11-23 02:26:58,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:26:58,408 INFO L225 Difference]: With dead ends: 17351 [2021-11-23 02:26:58,409 INFO L226 Difference]: Without dead ends: 11532 [2021-11-23 02:26:58,473 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:26:58,477 INFO L933 BasicCegarLoop]: 10621 mSDtfsCounter, 8814 mSDsluCounter, 8797 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8821 SdHoareTripleChecker+Valid, 18766 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:26:58,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8821 Valid, 18766 Invalid, 1363 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1354 Invalid, 6 Unknown, 0 Unchecked, 38.0s Time] [2021-11-23 02:26:58,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11532 states. [2021-11-23 02:26:59,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11532 to 11528. [2021-11-23 02:26:59,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11528 states, 6437 states have (on average 1.3018486872766817) internal successors, (8380), 6819 states have internal predecessors, (8380), 4612 states have call successors, (4612), 480 states have call predecessors, (4612), 478 states have return successors, (4611), 4489 states have call predecessors, (4611), 4611 states have call successors, (4611) [2021-11-23 02:26:59,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11528 states to 11528 states and 17603 transitions. [2021-11-23 02:27:00,002 INFO L78 Accepts]: Start accepts. Automaton has 11528 states and 17603 transitions. Word has length 161 [2021-11-23 02:27:00,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:27:00,004 INFO L470 AbstractCegarLoop]: Abstraction has 11528 states and 17603 transitions. [2021-11-23 02:27:00,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 02:27:00,010 INFO L276 IsEmpty]: Start isEmpty. Operand 11528 states and 17603 transitions. [2021-11-23 02:27:00,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-23 02:27:00,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:27:00,024 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:27:00,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:27:00,024 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:27:00,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:27:00,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2030579607, now seen corresponding path program 1 times [2021-11-23 02:27:00,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:27:00,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986110848] [2021-11-23 02:27:00,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:27:00,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:27:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:27:02,085 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2021-11-23 02:27:02,085 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:27:02,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986110848] [2021-11-23 02:27:02,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986110848] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:27:02,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:27:02,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:27:02,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387266903] [2021-11-23 02:27:02,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:27:02,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:27:02,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:27:02,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:27:02,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:27:02,090 INFO L87 Difference]: Start difference. First operand 11528 states and 17603 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 02:27:04,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:07,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:09,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:11,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 02:27:13,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:21,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:23,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:27,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:32,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:34,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:39,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:27:39,137 INFO L93 Difference]: Finished difference Result 23005 states and 35134 transitions. [2021-11-23 02:27:39,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:27:39,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 169 [2021-11-23 02:27:39,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:27:39,395 INFO L225 Difference]: With dead ends: 23005 [2021-11-23 02:27:39,395 INFO L226 Difference]: Without dead ends: 22996 [2021-11-23 02:27:39,424 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:27:39,425 INFO L933 BasicCegarLoop]: 10508 mSDtfsCounter, 8802 mSDsluCounter, 8833 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8811 SdHoareTripleChecker+Valid, 18671 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:27:39,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8811 Valid, 18671 Invalid, 1348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1340 Invalid, 8 Unknown, 0 Unchecked, 36.4s Time] [2021-11-23 02:27:39,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22996 states. [2021-11-23 02:27:41,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22996 to 22988. [2021-11-23 02:27:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22988 states, 12838 states have (on average 1.3023835488393831) internal successors, (16720), 13605 states have internal predecessors, (16720), 9198 states have call successors, (9198), 955 states have call predecessors, (9198), 951 states have return successors, (9197), 8949 states have call predecessors, (9197), 9197 states have call successors, (9197) [2021-11-23 02:27:41,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22988 states to 22988 states and 35115 transitions. [2021-11-23 02:27:41,771 INFO L78 Accepts]: Start accepts. Automaton has 22988 states and 35115 transitions. Word has length 169 [2021-11-23 02:27:41,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:27:41,772 INFO L470 AbstractCegarLoop]: Abstraction has 22988 states and 35115 transitions. [2021-11-23 02:27:41,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 02:27:41,773 INFO L276 IsEmpty]: Start isEmpty. Operand 22988 states and 35115 transitions. [2021-11-23 02:27:41,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2021-11-23 02:27:41,946 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:27:41,947 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-11-23 02:27:41,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:27:41,947 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:27:41,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:27:41,948 INFO L85 PathProgramCache]: Analyzing trace with hash 452834951, now seen corresponding path program 1 times [2021-11-23 02:27:41,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:27:41,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239747700] [2021-11-23 02:27:41,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:27:41,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:27:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:27:44,527 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 783 trivial. 0 not checked. [2021-11-23 02:27:44,527 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:27:44,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239747700] [2021-11-23 02:27:44,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239747700] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:27:44,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:27:44,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:27:44,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037055693] [2021-11-23 02:27:44,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:27:44,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:27:44,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:27:44,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:27:44,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:27:44,533 INFO L87 Difference]: Start difference. First operand 22988 states and 35115 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 2 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2021-11-23 02:27:47,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:49,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:51,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:53,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 02:27:57,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:00,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:03,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:10,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:11,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:16,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:19,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:21,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:23,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:26,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:28,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:32,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:32,079 INFO L93 Difference]: Finished difference Result 65741 states and 100386 transitions. [2021-11-23 02:28:32,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:28:32,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 2 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) Word has length 505 [2021-11-23 02:28:32,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:32,612 INFO L225 Difference]: With dead ends: 65741 [2021-11-23 02:28:32,612 INFO L226 Difference]: Without dead ends: 42784 [2021-11-23 02:28:32,818 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:28:32,822 INFO L933 BasicCegarLoop]: 12539 mSDtfsCounter, 7586 mSDsluCounter, 8823 mSDsCounter, 0 mSdLazyCounter, 1591 mSolverCounterSat, 2 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7599 SdHoareTripleChecker+Valid, 20703 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1591 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:32,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7599 Valid, 20703 Invalid, 1606 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1591 Invalid, 13 Unknown, 0 Unchecked, 46.0s Time] [2021-11-23 02:28:32,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42784 states. [2021-11-23 02:28:36,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42784 to 42738. [2021-11-23 02:28:36,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42738 states, 23684 states have (on average 1.299780442492822) internal successors, (30784), 25181 states have internal predecessors, (30784), 17230 states have call successors, (17230), 1835 states have call predecessors, (17230), 1823 states have return successors, (17249), 16727 states have call predecessors, (17249), 17229 states have call successors, (17249) [2021-11-23 02:28:36,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42738 states to 42738 states and 65263 transitions. [2021-11-23 02:28:36,969 INFO L78 Accepts]: Start accepts. Automaton has 42738 states and 65263 transitions. Word has length 505 [2021-11-23 02:28:36,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:36,973 INFO L470 AbstractCegarLoop]: Abstraction has 42738 states and 65263 transitions. [2021-11-23 02:28:36,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 2 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2021-11-23 02:28:36,973 INFO L276 IsEmpty]: Start isEmpty. Operand 42738 states and 65263 transitions. [2021-11-23 02:28:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2021-11-23 02:28:37,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:37,240 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 10, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 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] [2021-11-23 02:28:37,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:28:37,241 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:37,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:37,241 INFO L85 PathProgramCache]: Analyzing trace with hash -53742436, now seen corresponding path program 1 times [2021-11-23 02:28:37,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:28:37,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584251294] [2021-11-23 02:28:37,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:37,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:28:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:40,183 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 842 trivial. 0 not checked. [2021-11-23 02:28:40,184 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:28:40,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584251294] [2021-11-23 02:28:40,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584251294] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:40,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:40,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:28:40,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360510614] [2021-11-23 02:28:40,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:40,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:28:40,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:28:40,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:28:40,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:28:40,187 INFO L87 Difference]: Start difference. First operand 42738 states and 65263 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) [2021-11-23 02:28:42,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:46,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:48,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:50,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 02:28:52,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:56,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:59,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:29:02,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:29:07,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:29:14,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:29:20,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:29:22,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:29:26,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:29:27,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:29:30,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:29:30,582 INFO L93 Difference]: Finished difference Result 80141 states and 122274 transitions. [2021-11-23 02:29:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:29:30,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) Word has length 545 [2021-11-23 02:29:30,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:29:30,918 INFO L225 Difference]: With dead ends: 80141 [2021-11-23 02:29:30,918 INFO L226 Difference]: Without dead ends: 37434 [2021-11-23 02:29:31,173 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:29:31,178 INFO L933 BasicCegarLoop]: 13084 mSDtfsCounter, 8806 mSDsluCounter, 8872 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8813 SdHoareTripleChecker+Valid, 21285 SdHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:29:31,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8813 Valid, 21285 Invalid, 1709 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1701 Invalid, 8 Unknown, 0 Unchecked, 48.5s Time] [2021-11-23 02:29:31,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37434 states. [2021-11-23 02:29:34,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37434 to 37267. [2021-11-23 02:29:34,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37267 states, 20645 states have (on average 1.2994914022765802) internal successors, (26828), 21951 states have internal predecessors, (26828), 14990 states have call successors, (14990), 1642 states have call predecessors, (14990), 1631 states have return successors, (15004), 14550 states have call predecessors, (15004), 14989 states have call successors, (15004) [2021-11-23 02:29:34,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37267 states to 37267 states and 56822 transitions. [2021-11-23 02:29:34,964 INFO L78 Accepts]: Start accepts. Automaton has 37267 states and 56822 transitions. Word has length 545 [2021-11-23 02:29:34,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:29:34,965 INFO L470 AbstractCegarLoop]: Abstraction has 37267 states and 56822 transitions. [2021-11-23 02:29:34,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) [2021-11-23 02:29:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 37267 states and 56822 transitions. [2021-11-23 02:29:35,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2021-11-23 02:29:35,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:29:35,105 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 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] [2021-11-23 02:29:35,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:29:35,106 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:29:35,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:29:35,106 INFO L85 PathProgramCache]: Analyzing trace with hash 664992223, now seen corresponding path program 1 times [2021-11-23 02:29:35,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:29:35,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807765957] [2021-11-23 02:29:35,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:29:35,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:29:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:29:37,337 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2021-11-23 02:29:37,337 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:29:37,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807765957] [2021-11-23 02:29:37,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807765957] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:29:37,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:29:37,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:29:37,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980530817] [2021-11-23 02:29:37,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:29:37,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:29:37,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:29:37,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:29:37,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:29:37,342 INFO L87 Difference]: Start difference. First operand 37267 states and 56822 transitions. Second operand has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 3 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (82), 3 states have call predecessors, (82), 3 states have call successors, (82) [2021-11-23 02:29:39,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:29:43,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:29:45,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:29:47,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 02:29:49,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 02:29:52,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:29:55,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:29:57,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:29:59,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:02,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:04,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:14,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:18,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:20,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:24,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:26,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:28,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:37,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:39,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:42,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:45,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:47,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:48,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:49,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:52,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:30:55,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:30:55,512 INFO L93 Difference]: Finished difference Result 85192 states and 131331 transitions. [2021-11-23 02:30:55,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:30:55,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 3 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (82), 3 states have call predecessors, (82), 3 states have call successors, (82) Word has length 557 [2021-11-23 02:30:55,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:30:55,953 INFO L225 Difference]: With dead ends: 85192 [2021-11-23 02:30:55,953 INFO L226 Difference]: Without dead ends: 53047 [2021-11-23 02:30:56,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:30:56,181 INFO L933 BasicCegarLoop]: 10591 mSDtfsCounter, 4584 mSDsluCounter, 31815 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 1438 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5122 SdHoareTripleChecker+Valid, 40024 SdHoareTripleChecker+Invalid, 4707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1438 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:30:56,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5122 Valid, 40024 Invalid, 4707 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1438 Valid, 3255 Invalid, 14 Unknown, 0 Unchecked, 76.0s Time] [2021-11-23 02:30:56,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53047 states. [2021-11-23 02:31:00,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53047 to 37312. [2021-11-23 02:31:00,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37312 states, 20678 states have (on average 1.2993036076990039) internal successors, (26867), 21984 states have internal predecessors, (26867), 15002 states have call successors, (15002), 1642 states have call predecessors, (15002), 1631 states have return successors, (15016), 14562 states have call predecessors, (15016), 15001 states have call successors, (15016) [2021-11-23 02:31:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37312 states to 37312 states and 56885 transitions. [2021-11-23 02:31:00,568 INFO L78 Accepts]: Start accepts. Automaton has 37312 states and 56885 transitions. Word has length 557 [2021-11-23 02:31:00,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:31:00,569 INFO L470 AbstractCegarLoop]: Abstraction has 37312 states and 56885 transitions. [2021-11-23 02:31:00,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 3 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (82), 3 states have call predecessors, (82), 3 states have call successors, (82) [2021-11-23 02:31:00,570 INFO L276 IsEmpty]: Start isEmpty. Operand 37312 states and 56885 transitions. [2021-11-23 02:31:00,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2021-11-23 02:31:00,683 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:31:00,684 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 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] [2021-11-23 02:31:00,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:31:00,685 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:31:00,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:31:00,685 INFO L85 PathProgramCache]: Analyzing trace with hash 82425691, now seen corresponding path program 1 times [2021-11-23 02:31:00,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:31:00,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934660264] [2021-11-23 02:31:00,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:00,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:31:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:31:02,869 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2021-11-23 02:31:02,870 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:31:02,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934660264] [2021-11-23 02:31:02,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934660264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:31:02,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:31:02,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:31:02,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023833272] [2021-11-23 02:31:02,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:31:02,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:31:02,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:31:02,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:31:02,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:31:02,873 INFO L87 Difference]: Start difference. First operand 37312 states and 56885 transitions. Second operand has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 3 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (82), 3 states have call predecessors, (82), 3 states have call successors, (82) [2021-11-23 02:31:05,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:08,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:10,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:12,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 02:31:15,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:19,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:20,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:21,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:23,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:25,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:34,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:36,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:37,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:39,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:42,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:45,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:54,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:31:56,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:03,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:04,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:06,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:08,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:15,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:32:16,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:16,243 INFO L93 Difference]: Finished difference Result 88463 states and 136597 transitions. [2021-11-23 02:32:16,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 02:32:16,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 3 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (82), 3 states have call predecessors, (82), 3 states have call successors, (82) Word has length 560 [2021-11-23 02:32:16,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:16,722 INFO L225 Difference]: With dead ends: 88463 [2021-11-23 02:32:16,723 INFO L226 Difference]: Without dead ends: 56273 [2021-11-23 02:32:16,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:32:16,896 INFO L933 BasicCegarLoop]: 11145 mSDtfsCounter, 5162 mSDsluCounter, 43767 mSDsCounter, 0 mSdLazyCounter, 4109 mSolverCounterSat, 2943 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5472 SdHoareTripleChecker+Valid, 51726 SdHoareTripleChecker+Invalid, 7068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2943 IncrementalHoareTripleChecker+Valid, 4109 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:16,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5472 Valid, 51726 Invalid, 7068 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2943 Valid, 4109 Invalid, 16 Unknown, 0 Unchecked, 71.0s Time] [2021-11-23 02:32:16,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56273 states. [2021-11-23 02:32:20,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56273 to 37315. [2021-11-23 02:32:20,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37315 states, 20681 states have (on average 1.2992601905130312) internal successors, (26870), 21987 states have internal predecessors, (26870), 15002 states have call successors, (15002), 1642 states have call predecessors, (15002), 1631 states have return successors, (15016), 14562 states have call predecessors, (15016), 15001 states have call successors, (15016) [2021-11-23 02:32:21,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37315 states to 37315 states and 56888 transitions. [2021-11-23 02:32:21,199 INFO L78 Accepts]: Start accepts. Automaton has 37315 states and 56888 transitions. Word has length 560 [2021-11-23 02:32:21,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:21,200 INFO L470 AbstractCegarLoop]: Abstraction has 37315 states and 56888 transitions. [2021-11-23 02:32:21,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 3 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (82), 3 states have call predecessors, (82), 3 states have call successors, (82) [2021-11-23 02:32:21,201 INFO L276 IsEmpty]: Start isEmpty. Operand 37315 states and 56888 transitions. [2021-11-23 02:32:21,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2021-11-23 02:32:21,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:21,306 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 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] [2021-11-23 02:32:21,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:32:21,307 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:21,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:21,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1615041823, now seen corresponding path program 1 times [2021-11-23 02:32:21,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:21,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241285638] [2021-11-23 02:32:21,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:21,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:24,002 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2021-11-23 02:32:24,002 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:24,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241285638] [2021-11-23 02:32:24,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241285638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:24,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:24,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:32:24,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258871146] [2021-11-23 02:32:24,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:24,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:32:24,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:24,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:32:24,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:32:24,005 INFO L87 Difference]: Start difference. First operand 37315 states and 56888 transitions. Second operand has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-23 02:32:26,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:29,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:30,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:32,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:34,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:36,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:38,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 02:32:40,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:43,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:48,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:51,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:53,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:55,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:02,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:09,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:15,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:18,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:21,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:22,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:26,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:29,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:31,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:34,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:46,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:48,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:55,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:56,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:00,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:03,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:13,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:13,430 INFO L93 Difference]: Finished difference Result 99539 states and 154366 transitions. [2021-11-23 02:34:13,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 02:34:13,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 560 [2021-11-23 02:34:13,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:13,786 INFO L225 Difference]: With dead ends: 99539 [2021-11-23 02:34:13,786 INFO L226 Difference]: Without dead ends: 67346 [2021-11-23 02:34:14,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-23 02:34:14,132 INFO L933 BasicCegarLoop]: 13971 mSDtfsCounter, 6488 mSDsluCounter, 39119 mSDsCounter, 0 mSdLazyCounter, 5357 mSolverCounterSat, 3817 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 101.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7495 SdHoareTripleChecker+Valid, 50137 SdHoareTripleChecker+Invalid, 9191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3817 IncrementalHoareTripleChecker+Valid, 5357 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:14,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7495 Valid, 50137 Invalid, 9191 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3817 Valid, 5357 Invalid, 17 Unknown, 0 Unchecked, 106.1s Time] [2021-11-23 02:34:14,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67346 states. [2021-11-23 02:34:18,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67346 to 37321. [2021-11-23 02:34:18,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37321 states, 20687 states have (on average 1.2991733939188863) internal successors, (26876), 21993 states have internal predecessors, (26876), 15002 states have call successors, (15002), 1642 states have call predecessors, (15002), 1631 states have return successors, (15016), 14562 states have call predecessors, (15016), 15001 states have call successors, (15016) [2021-11-23 02:34:19,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37321 states to 37321 states and 56894 transitions. [2021-11-23 02:34:19,074 INFO L78 Accepts]: Start accepts. Automaton has 37321 states and 56894 transitions. Word has length 560 [2021-11-23 02:34:19,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:19,075 INFO L470 AbstractCegarLoop]: Abstraction has 37321 states and 56894 transitions. [2021-11-23 02:34:19,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-23 02:34:19,075 INFO L276 IsEmpty]: Start isEmpty. Operand 37321 states and 56894 transitions. [2021-11-23 02:34:19,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2021-11-23 02:34:19,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:19,164 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 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] [2021-11-23 02:34:19,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:34:19,165 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:19,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:19,165 INFO L85 PathProgramCache]: Analyzing trace with hash 494037890, now seen corresponding path program 1 times [2021-11-23 02:34:19,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:34:19,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112968419] [2021-11-23 02:34:19,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:19,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:34:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:22,018 INFO L134 CoverageAnalysis]: Checked inductivity of 922 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 912 trivial. 0 not checked. [2021-11-23 02:34:22,018 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:34:22,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112968419] [2021-11-23 02:34:22,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112968419] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:22,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:22,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:34:22,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377834153] [2021-11-23 02:34:22,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:22,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:34:22,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:34:22,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:34:22,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:34:22,022 INFO L87 Difference]: Start difference. First operand 37321 states and 56894 transitions. Second operand has 4 states, 3 states have (on average 79.66666666666667) internal successors, (239), 4 states have internal predecessors, (239), 2 states have call successors, (85), 2 states have call predecessors, (85), 3 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2021-11-23 02:34:24,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:27,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:29,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:31,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 02:34:35,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:39,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:42,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:46,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:51,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:55,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:00,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:02,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:05,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:08,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:11,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:35:11,619 INFO L93 Difference]: Finished difference Result 74636 states and 115432 transitions. [2021-11-23 02:35:11,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:35:11,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 79.66666666666667) internal successors, (239), 4 states have internal predecessors, (239), 2 states have call successors, (85), 2 states have call predecessors, (85), 3 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 571 [2021-11-23 02:35:11,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:35:11,991 INFO L225 Difference]: With dead ends: 74636 [2021-11-23 02:35:11,991 INFO L226 Difference]: Without dead ends: 37363 [2021-11-23 02:35:12,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:35:12,612 INFO L933 BasicCegarLoop]: 8195 mSDtfsCounter, 5 mSDsluCounter, 17699 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 12 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 24561 SdHoareTripleChecker+Invalid, 2073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:35:12,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 24561 Invalid, 2073 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 2049 Invalid, 12 Unknown, 0 Unchecked, 47.8s Time] [2021-11-23 02:35:12,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37363 states. [2021-11-23 02:35:15,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37363 to 37349. [2021-11-23 02:35:15,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37349 states, 20708 states have (on average 1.2995460691520186) internal successors, (26911), 22014 states have internal predecessors, (26911), 15002 states have call successors, (15002), 1649 states have call predecessors, (15002), 1638 states have return successors, (15016), 14562 states have call predecessors, (15016), 15001 states have call successors, (15016) [2021-11-23 02:35:15,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37349 states to 37349 states and 56929 transitions. [2021-11-23 02:35:15,960 INFO L78 Accepts]: Start accepts. Automaton has 37349 states and 56929 transitions. Word has length 571 [2021-11-23 02:35:15,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:35:15,962 INFO L470 AbstractCegarLoop]: Abstraction has 37349 states and 56929 transitions. [2021-11-23 02:35:15,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 79.66666666666667) internal successors, (239), 4 states have internal predecessors, (239), 2 states have call successors, (85), 2 states have call predecessors, (85), 3 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2021-11-23 02:35:15,963 INFO L276 IsEmpty]: Start isEmpty. Operand 37349 states and 56929 transitions. [2021-11-23 02:35:16,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2021-11-23 02:35:16,100 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:16,101 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 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] [2021-11-23 02:35:16,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:35:16,101 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:16,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:16,102 INFO L85 PathProgramCache]: Analyzing trace with hash -625505273, now seen corresponding path program 1 times [2021-11-23 02:35:16,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:35:16,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228685048] [2021-11-23 02:35:16,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:16,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:35:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:19,077 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2021-11-23 02:35:19,078 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:35:19,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228685048] [2021-11-23 02:35:19,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228685048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:35:19,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:35:19,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:35:19,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312811115] [2021-11-23 02:35:19,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:35:19,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:35:19,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:35:19,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:35:19,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:35:19,082 INFO L87 Difference]: Start difference. First operand 37349 states and 56929 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2021-11-23 02:35:21,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:24,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:27,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:29,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 02:35:31,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:34,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:37,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:43,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:45,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:47,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:48,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:52,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:54,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:57,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:59,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:02,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:36:02,395 INFO L93 Difference]: Finished difference Result 74804 states and 115642 transitions. [2021-11-23 02:36:02,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:36:02,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 572 [2021-11-23 02:36:02,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:36:02,738 INFO L225 Difference]: With dead ends: 74804 [2021-11-23 02:36:02,738 INFO L226 Difference]: Without dead ends: 37503 [2021-11-23 02:36:03,353 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:36:03,354 INFO L933 BasicCegarLoop]: 8233 mSDtfsCounter, 14 mSDsluCounter, 8876 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 16440 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:36:03,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 16440 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1344 Invalid, 10 Unknown, 0 Unchecked, 41.5s Time] [2021-11-23 02:36:03,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37503 states. [2021-11-23 02:36:06,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37503 to 37356. [2021-11-23 02:36:06,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37356 states, 20715 states have (on average 1.299444846729423) internal successors, (26918), 22021 states have internal predecessors, (26918), 15002 states have call successors, (15002), 1649 states have call predecessors, (15002), 1638 states have return successors, (15016), 14562 states have call predecessors, (15016), 15001 states have call successors, (15016) [2021-11-23 02:36:06,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37356 states to 37356 states and 56936 transitions. [2021-11-23 02:36:06,710 INFO L78 Accepts]: Start accepts. Automaton has 37356 states and 56936 transitions. Word has length 572 [2021-11-23 02:36:06,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:36:06,712 INFO L470 AbstractCegarLoop]: Abstraction has 37356 states and 56936 transitions. [2021-11-23 02:36:06,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2021-11-23 02:36:06,712 INFO L276 IsEmpty]: Start isEmpty. Operand 37356 states and 56936 transitions. [2021-11-23 02:36:06,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2021-11-23 02:36:06,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:36:06,846 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 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] [2021-11-23 02:36:06,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:36:06,847 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:36:06,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:36:06,848 INFO L85 PathProgramCache]: Analyzing trace with hash -502108521, now seen corresponding path program 1 times [2021-11-23 02:36:06,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:36:06,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383638647] [2021-11-23 02:36:06,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:36:06,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:36:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:36:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2021-11-23 02:36:09,311 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:36:09,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383638647] [2021-11-23 02:36:09,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383638647] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:36:09,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:36:09,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:36:09,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839146398] [2021-11-23 02:36:09,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:36:09,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:36:09,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:36:09,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:36:09,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:36:09,316 INFO L87 Difference]: Start difference. First operand 37356 states and 56936 transitions. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 3 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (85), 3 states have call predecessors, (85), 3 states have call successors, (85) [2021-11-23 02:36:11,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:14,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:16,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:18,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 02:36:21,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:22,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:25,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:35,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:39,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:41,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:45,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:49,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:36:49,165 INFO L93 Difference]: Finished difference Result 74874 states and 115747 transitions. [2021-11-23 02:36:49,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:36:49,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 3 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (85), 3 states have call predecessors, (85), 3 states have call successors, (85) Word has length 576 [2021-11-23 02:36:49,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:36:49,509 INFO L225 Difference]: With dead ends: 74874 [2021-11-23 02:36:49,510 INFO L226 Difference]: Without dead ends: 37566 [2021-11-23 02:36:50,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:36:50,178 INFO L933 BasicCegarLoop]: 8217 mSDtfsCounter, 17 mSDsluCounter, 8887 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 16430 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:36:50,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 16430 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1366 Invalid, 9 Unknown, 0 Unchecked, 38.1s Time] [2021-11-23 02:36:50,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37566 states. [2021-11-23 02:36:54,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37566 to 37405. [2021-11-23 02:36:54,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37405 states, 20750 states have (on average 1.299277108433735) internal successors, (26960), 22056 states have internal predecessors, (26960), 15016 states have call successors, (15016), 1649 states have call predecessors, (15016), 1638 states have return successors, (15030), 14576 states have call predecessors, (15030), 15015 states have call successors, (15030) [2021-11-23 02:36:55,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37405 states to 37405 states and 57006 transitions. [2021-11-23 02:36:55,144 INFO L78 Accepts]: Start accepts. Automaton has 37405 states and 57006 transitions. Word has length 576 [2021-11-23 02:36:55,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:36:55,146 INFO L470 AbstractCegarLoop]: Abstraction has 37405 states and 57006 transitions. [2021-11-23 02:36:55,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 3 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (85), 3 states have call predecessors, (85), 3 states have call successors, (85) [2021-11-23 02:36:55,149 INFO L276 IsEmpty]: Start isEmpty. Operand 37405 states and 57006 transitions. [2021-11-23 02:36:55,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2021-11-23 02:36:55,307 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:36:55,308 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 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] [2021-11-23 02:36:55,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 02:36:55,309 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:36:55,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:36:55,309 INFO L85 PathProgramCache]: Analyzing trace with hash 226444067, now seen corresponding path program 1 times [2021-11-23 02:36:55,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:36:55,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637493464] [2021-11-23 02:36:55,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:36:55,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:36:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:36:58,043 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2021-11-23 02:36:58,043 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:36:58,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637493464] [2021-11-23 02:36:58,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637493464] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:36:58,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977344942] [2021-11-23 02:36:58,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:36:58,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:36:58,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:36:58,056 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:36:58,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b30f2-867c-491f-8284-006371053c71/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:37:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:37:03,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 24679 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:37:04,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:37:05,276 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 885 trivial. 0 not checked. [2021-11-23 02:37:05,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:37:05,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977344942] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:37:05,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:37:05,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-23 02:37:05,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232768013] [2021-11-23 02:37:05,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:37:05,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:37:05,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:37:05,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:37:05,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:37:05,280 INFO L87 Difference]: Start difference. First operand 37405 states and 57006 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 2 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2021-11-23 02:37:07,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:09,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:12,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:14,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 02:37:17,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:20,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:22,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:29,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []