./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8723be--rtl8723be.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8723be--rtl8723be.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P --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 5cb637222875578a4a5fa96925cf9060bd5dc735b183bd12c9c7f65912176d3e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:18:36,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:18:36,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:18:36,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:18:36,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:18:36,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:18:36,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:18:36,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:18:36,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:18:36,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:18:36,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:18:36,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:18:36,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:18:36,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:18:36,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:18:36,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:18:36,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:18:36,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:18:36,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:18:36,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:18:36,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:18:36,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:18:36,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:18:36,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:18:36,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:18:36,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:18:36,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:18:36,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:18:36,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:18:36,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:18:36,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:18:36,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:18:36,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:18:36,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:18:36,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:18:36,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:18:36,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:18:36,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:18:36,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:18:36,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:18:36,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:18:36,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:18:36,855 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:18:36,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:18:36,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:18:36,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:18:36,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:18:36,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:18:36,861 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:18:36,861 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:18:36,862 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:18:36,862 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:18:36,862 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:18:36,862 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:18:36,862 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:18:36,863 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:18:36,863 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:18:36,863 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:18:36,863 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:18:36,863 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:18:36,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:18:36,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:18:36,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:18:36,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:18:36,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:18:36,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:18:36,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:18:36,866 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:18:36,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:18:36,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:18:36,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:18:36,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:18:36,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:18:36,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:18:36,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:18:36,867 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:18:36,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:18:36,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:18:36,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:18:36,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:18:36,868 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_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cb637222875578a4a5fa96925cf9060bd5dc735b183bd12c9c7f65912176d3e [2021-11-21 01:18:37,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:18:37,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:18:37,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:18:37,240 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:18:37,241 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:18:37,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8723be--rtl8723be.ko-entry_point.cil.out.i [2021-11-21 01:18:37,344 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/data/80efbc404/277b59a703d84500bcf3e2b353bc35c9/FLAGefad16292 [2021-11-21 01:18:38,832 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:18:38,834 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8723be--rtl8723be.ko-entry_point.cil.out.i [2021-11-21 01:18:38,931 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/data/80efbc404/277b59a703d84500bcf3e2b353bc35c9/FLAGefad16292 [2021-11-21 01:18:39,323 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/data/80efbc404/277b59a703d84500bcf3e2b353bc35c9 [2021-11-21 01:18:39,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:18:39,331 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:18:39,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:18:39,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:18:39,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:18:39,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:18:39" (1/1) ... [2021-11-21 01:18:39,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@498326a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:39, skipping insertion in model container [2021-11-21 01:18:39,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:18:39" (1/1) ... [2021-11-21 01:18:39,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:18:39,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:18:41,145 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_abe243a8-87e5-4e48-a95a-0c39af2f77a1/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8723be--rtl8723be.ko-entry_point.cil.out.i[226403,226416] [2021-11-21 01:18:45,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:18:46,167 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:18:46,422 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_abe243a8-87e5-4e48-a95a-0c39af2f77a1/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8723be--rtl8723be.ko-entry_point.cil.out.i[226403,226416] [2021-11-21 01:18:47,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:18:47,592 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:18:47,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:47 WrapperNode [2021-11-21 01:18:47,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:18:47,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:18:47,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:18:47,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:18:47,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:47" (1/1) ... [2021-11-21 01:18:47,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:47" (1/1) ... [2021-11-21 01:18:48,547 INFO L137 Inliner]: procedures = 476, calls = 9531, calls flagged for inlining = 212, calls inlined = 205, statements flattened = 20967 [2021-11-21 01:18:48,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:18:48,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:18:48,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:18:48,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:18:48,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:47" (1/1) ... [2021-11-21 01:18:48,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:47" (1/1) ... [2021-11-21 01:18:48,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:47" (1/1) ... [2021-11-21 01:18:48,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:47" (1/1) ... [2021-11-21 01:18:49,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:47" (1/1) ... [2021-11-21 01:18:49,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:47" (1/1) ... [2021-11-21 01:18:49,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:47" (1/1) ... [2021-11-21 01:18:49,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:18:49,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:18:49,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:18:49,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:18:49,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:47" (1/1) ... [2021-11-21 01:18:49,819 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:18:49,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:18:49,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:18:49,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:18:50,005 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_config_rf_radio_a [2021-11-21 01:18:50,019 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_config_rf_radio_a [2021-11-21 01:18:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure phy_similarity_cmp [2021-11-21 01:18:50,020 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_similarity_cmp [2021-11-21 01:18:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_init_led [2021-11-21 01:18:50,020 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_init_led [2021-11-21 01:18:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723_phy_path_adda_on [2021-11-21 01:18:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723_phy_path_adda_on [2021-11-21 01:18:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_get_btc_status [2021-11-21 01:18:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_get_btc_status [2021-11-21 01:18:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure phy_conv_dbm_to_rel [2021-11-21 01:18:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_conv_dbm_to_rel [2021-11-21 01:18:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-21 01:18:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-21 01:18:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723_phy_reload_adda_registers [2021-11-21 01:18:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723_phy_reload_adda_registers [2021-11-21 01:18:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:18:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:18:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_hw_init [2021-11-21 01:18:50,023 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_hw_init [2021-11-21 01:18:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-21 01:18:50,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-21 01:18:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2021-11-21 01:18:50,023 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2021-11-21 01:18:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-21 01:18:50,024 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-21 01:18:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure phy_get_txpwr_by_rate_base [2021-11-21 01:18:50,024 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_get_txpwr_by_rate_base [2021-11-21 01:18:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_signal_scale_mapping [2021-11-21 01:18:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_signal_scale_mapping [2021-11-21 01:18:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_update_hal_rate_tbl [2021-11-21 01:18:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_update_hal_rate_tbl [2021-11-21 01:18:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2021-11-21 01:18:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2021-11-21 01:18:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 01:18:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 01:18:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~~bool~0 [2021-11-21 01:18:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~~bool~0 [2021-11-21 01:18:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-21 01:18:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-21 01:18:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 01:18:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 01:18:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_dm_watchdog [2021-11-21 01:18:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_dm_watchdog [2021-11-21 01:18:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2021-11-21 01:18:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2021-11-21 01:18:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_gpio_radio_on_off_checking [2021-11-21 01:18:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_gpio_radio_on_off_checking [2021-11-21 01:18:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_rx_query_desc [2021-11-21 01:18:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_rx_query_desc [2021-11-21 01:18:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-21 01:18:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723_phy_rf_serial_read [2021-11-21 01:18:50,029 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723_phy_rf_serial_read [2021-11-21 01:18:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-21 01:18:50,029 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-21 01:18:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_set_bcn_ctrl_reg [2021-11-21 01:18:50,030 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_set_bcn_ctrl_reg [2021-11-21 01:18:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_resume_tx_beacon [2021-11-21 01:18:50,030 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_resume_tx_beacon [2021-11-21 01:18:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723_phy_query_bb_reg [2021-11-21 01:18:50,030 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723_phy_query_bb_reg [2021-11-21 01:18:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:18:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_phy_config_bb_with_headerfile [2021-11-21 01:18:50,031 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_phy_config_bb_with_headerfile [2021-11-21 01:18:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723_phy_calculate_bit_shift [2021-11-21 01:18:50,031 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723_phy_calculate_bit_shift [2021-11-21 01:18:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2021-11-21 01:18:50,032 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2021-11-21 01:18:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 01:18:50,032 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 01:18:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-21 01:18:50,032 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-21 01:18:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:18:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_protected [2021-11-21 01:18:50,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_protected [2021-11-21 01:18:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 01:18:50,033 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 01:18:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure is_hal_stop [2021-11-21 01:18:50,033 INFO L138 BoogieDeclarations]: Found implementation of procedure is_hal_stop [2021-11-21 01:18:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:18:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:18:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 01:18:50,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 01:18:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_resume [2021-11-21 01:18:50,035 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_resume [2021-11-21 01:18:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:18:50,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:18:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_set_fw_rsvdpagepkt [2021-11-21 01:18:50,035 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_set_fw_rsvdpagepkt [2021-11-21 01:18:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___skb_dequeue_23 [2021-11-21 01:18:50,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___skb_dequeue_23 [2021-11-21 01:18:50,036 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-21 01:18:50,051 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-21 01:18:50,052 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723_dm_init_edca_turbo [2021-11-21 01:18:50,052 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723_dm_init_edca_turbo [2021-11-21 01:18:50,052 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_init_sw_leds [2021-11-21 01:18:50,052 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_init_sw_leds [2021-11-21 01:18:50,052 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_interrupt_recognized [2021-11-21 01:18:50,053 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_interrupt_recognized [2021-11-21 01:18:50,053 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2021-11-21 01:18:50,053 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2021-11-21 01:18:50,053 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_set_fw_clock_on [2021-11-21 01:18:50,053 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_set_fw_clock_on [2021-11-21 01:18:50,054 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2021-11-21 01:18:50,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2021-11-21 01:18:50,054 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-11-21 01:18:50,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-11-21 01:18:50,054 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_phy_set_txpower_index [2021-11-21 01:18:50,054 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_phy_set_txpower_index [2021-11-21 01:18:50,055 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_enable_hw_security_config [2021-11-21 01:18:50,055 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_enable_hw_security_config [2021-11-21 01:18:50,055 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_phy_query_rf_reg [2021-11-21 01:18:50,055 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_phy_query_rf_reg [2021-11-21 01:18:50,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-11-21 01:18:50,055 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723_save_adda_registers [2021-11-21 01:18:50,055 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723_save_adda_registers [2021-11-21 01:18:50,055 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-11-21 01:18:50,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-11-21 01:18:50,056 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_tx_polling [2021-11-21 01:18:50,056 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_tx_polling [2021-11-21 01:18:50,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:18:50,056 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_cmd_send_packet [2021-11-21 01:18:50,056 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_cmd_send_packet [2021-11-21 01:18:50,056 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_led_control [2021-11-21 01:18:50,056 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_led_control [2021-11-21 01:18:50,057 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_set_check_bssid [2021-11-21 01:18:50,057 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_set_check_bssid [2021-11-21 01:18:50,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:18:50,057 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_disable_interrupt [2021-11-21 01:18:50,057 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_disable_interrupt [2021-11-21 01:18:50,057 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 01:18:50,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 01:18:50,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:18:50,058 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 01:18:50,058 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_get_hw_reg [2021-11-21 01:18:50,058 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_get_hw_reg [2021-11-21 01:18:50,058 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:18:50,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:18:50,058 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_hdr [2021-11-21 01:18:50,058 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_hdr [2021-11-21 01:18:50,058 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_hal_pwrseqcmdparsing [2021-11-21 01:18:50,058 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_hal_pwrseqcmdparsing [2021-11-21 01:18:50,058 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_phy_sw_chnl [2021-11-21 01:18:50,059 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_phy_sw_chnl [2021-11-21 01:18:50,059 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 01:18:50,059 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 01:18:50,059 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_enable_interrupt [2021-11-21 01:18:50,059 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_enable_interrupt [2021-11-21 01:18:50,059 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_set_fw_clock_off [2021-11-21 01:18:50,059 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_set_fw_clock_off [2021-11-21 01:18:50,059 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_sw_led_off [2021-11-21 01:18:50,059 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_sw_led_off [2021-11-21 01:18:50,059 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2021-11-21 01:18:50,060 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2021-11-21 01:18:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:18:50,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:18:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_set_desc [2021-11-21 01:18:50,060 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_set_desc [2021-11-21 01:18:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_phy_set_rf_power_state [2021-11-21 01:18:50,060 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_phy_set_rf_power_state [2021-11-21 01:18:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-21 01:18:50,060 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-21 01:18:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_set_media_status [2021-11-21 01:18:50,061 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_set_media_status [2021-11-21 01:18:50,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:18:50,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:18:50,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:18:50,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:18:50,061 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_set_qos [2021-11-21 01:18:50,061 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_set_qos [2021-11-21 01:18:50,061 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_DA [2021-11-21 01:18:50,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_DA [2021-11-21 01:18:50,061 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2021-11-21 01:18:50,061 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2021-11-21 01:18:50,061 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_phy_set_txpower_level [2021-11-21 01:18:50,062 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_phy_set_txpower_level [2021-11-21 01:18:50,062 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~TO~VOID [2021-11-21 01:18:50,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~TO~VOID [2021-11-21 01:18:50,062 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723_phy_set_sw_chnl_cmdarray [2021-11-21 01:18:50,062 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723_phy_set_sw_chnl_cmdarray [2021-11-21 01:18:50,062 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-21 01:18:50,062 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-21 01:18:50,062 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_suspend [2021-11-21 01:18:50,062 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_suspend [2021-11-21 01:18:50,062 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_dm_check_txpower_tracking [2021-11-21 01:18:50,062 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_dm_check_txpower_tracking [2021-11-21 01:18:50,063 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_set_fw_ps_rf_on [2021-11-21 01:18:50,063 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_set_fw_ps_rf_on [2021-11-21 01:18:50,063 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_phy_scan_operation_backup [2021-11-21 01:18:50,063 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_phy_scan_operation_backup [2021-11-21 01:18:50,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-21 01:18:50,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-21 01:18:50,063 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_phy_iq_calibrate [2021-11-21 01:18:50,063 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_phy_iq_calibrate [2021-11-21 01:18:50,063 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_set_iqk_matrix [2021-11-21 01:18:50,063 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_set_iqk_matrix [2021-11-21 01:18:50,063 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_set_key [2021-11-21 01:18:50,063 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_set_key [2021-11-21 01:18:50,064 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-11-21 01:18:50,064 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-11-21 01:18:50,064 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2021-11-21 01:18:50,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2021-11-21 01:18:50,064 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2021-11-21 01:18:50,064 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2021-11-21 01:18:50,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-21 01:18:50,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-21 01:18:50,064 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2021-11-21 01:18:50,064 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2021-11-21 01:18:50,064 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 01:18:50,065 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 01:18:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_suspend [2021-11-21 01:18:50,065 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_suspend [2021-11-21 01:18:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:18:50,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:18:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 01:18:50,065 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 01:18:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~bool~0 [2021-11-21 01:18:50,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~bool~0 [2021-11-21 01:18:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_update_channel_access_setting [2021-11-21 01:18:50,065 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_update_channel_access_setting [2021-11-21 01:18:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:18:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_dm_tx_power_track_set_power [2021-11-21 01:18:50,066 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_dm_tx_power_track_set_power [2021-11-21 01:18:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_init_sw_vars [2021-11-21 01:18:50,066 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_init_sw_vars [2021-11-21 01:18:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_tx_fill_desc [2021-11-21 01:18:50,066 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_tx_fill_desc [2021-11-21 01:18:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure phy_set_txpwr_by_rate_base [2021-11-21 01:18:50,066 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_set_txpwr_by_rate_base [2021-11-21 01:18:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:18:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-11-21 01:18:50,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-11-21 01:18:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723_phy_pi_mode_switch [2021-11-21 01:18:50,067 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723_phy_pi_mode_switch [2021-11-21 01:18:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_set_hw_reg [2021-11-21 01:18:50,067 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_set_hw_reg [2021-11-21 01:18:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2021-11-21 01:18:50,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2021-11-21 01:18:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-21 01:18:50,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-21 01:18:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_fwlps_enter [2021-11-21 01:18:50,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_fwlps_enter [2021-11-21 01:18:50,072 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_fwlps_leave [2021-11-21 01:18:50,072 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_fwlps_leave [2021-11-21 01:18:50,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:18:50,073 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_get_txpower_index [2021-11-21 01:18:50,074 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_get_txpower_index [2021-11-21 01:18:50,074 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~X~~u8~0~TO~~u32~0 [2021-11-21 01:18:50,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~X~~u8~0~TO~~u32~0 [2021-11-21 01:18:50,080 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-21 01:18:50,080 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-21 01:18:50,080 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_set_beacon_related_registers [2021-11-21 01:18:50,080 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_set_beacon_related_registers [2021-11-21 01:18:50,080 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_phy_set_rf_reg [2021-11-21 01:18:50,081 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_phy_set_rf_reg [2021-11-21 01:18:50,081 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_get_desc [2021-11-21 01:18:50,081 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_get_desc [2021-11-21 01:18:50,081 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_stop_tx_beacon [2021-11-21 01:18:50,081 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_stop_tx_beacon [2021-11-21 01:18:50,081 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_deinit_sw_vars [2021-11-21 01:18:50,081 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_deinit_sw_vars [2021-11-21 01:18:50,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-21 01:18:50,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-21 01:18:50,082 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_rfreg [2021-11-21 01:18:50,082 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_rfreg [2021-11-21 01:18:50,082 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-21 01:18:50,082 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-21 01:18:50,083 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_resume [2021-11-21 01:18:50,083 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_resume [2021-11-21 01:18:50,083 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-11-21 01:18:50,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-11-21 01:18:50,083 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_card_disable [2021-11-21 01:18:50,083 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_card_disable [2021-11-21 01:18:50,083 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-21 01:18:50,084 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-21 01:18:50,084 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_update_interrupt_mask [2021-11-21 01:18:50,084 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_update_interrupt_mask [2021-11-21 01:18:50,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-11-21 01:18:50,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-11-21 01:18:50,084 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_query_rxpwrpercentage [2021-11-21 01:18:50,085 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_query_rxpwrpercentage [2021-11-21 01:18:50,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:18:50,085 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_set_network_type [2021-11-21 01:18:50,085 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_set_network_type [2021-11-21 01:18:50,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:18:50,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:18:50,085 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2021-11-21 01:18:50,086 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2021-11-21 01:18:50,086 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2021-11-21 01:18:50,086 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2021-11-21 01:18:50,086 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_phy_set_bw_mode [2021-11-21 01:18:50,086 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_phy_set_bw_mode [2021-11-21 01:18:50,086 INFO L130 BoogieDeclarations]: Found specification of procedure is_fw_header [2021-11-21 01:18:50,086 INFO L138 BoogieDeclarations]: Found implementation of procedure is_fw_header [2021-11-21 01:18:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-21 01:18:50,087 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-21 01:18:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-21 01:18:50,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-21 01:18:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_read_eeprom_info [2021-11-21 01:18:50,087 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_read_eeprom_info [2021-11-21 01:18:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_set_beacon_interval [2021-11-21 01:18:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_set_beacon_interval [2021-11-21 01:18:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-21 01:18:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-21 01:18:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_is_tx_desc_closed [2021-11-21 01:18:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_is_tx_desc_closed [2021-11-21 01:18:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_llt_write [2021-11-21 01:18:50,089 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_llt_write [2021-11-21 01:18:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_bb_delay [2021-11-21 01:18:50,089 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_bb_delay [2021-11-21 01:18:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723_phy_set_bb_reg [2021-11-21 01:18:50,089 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723_phy_set_bb_reg [2021-11-21 01:18:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_sw_led_on [2021-11-21 01:18:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_sw_led_on [2021-11-21 01:18:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2021-11-21 01:18:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2021-11-21 01:18:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_check_fw_read_last_h2c [2021-11-21 01:18:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_check_fw_read_last_h2c [2021-11-21 01:18:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-21 01:18:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-21 01:18:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 01:18:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 01:18:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_phy_lc_calibrate [2021-11-21 01:18:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_phy_lc_calibrate [2021-11-21 01:18:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_check_condition [2021-11-21 01:18:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_check_condition [2021-11-21 01:18:50,092 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_tx_fill_cmddesc [2021-11-21 01:18:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_tx_fill_cmddesc [2021-11-21 01:18:50,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:18:50,092 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_disconnect [2021-11-21 01:18:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_disconnect [2021-11-21 01:18:50,092 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_phy_config_rf_with_headerfile [2021-11-21 01:18:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_phy_config_rf_with_headerfile [2021-11-21 01:18:50,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-11-21 01:18:50,093 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_fill_h2c_cmd [2021-11-21 01:18:50,093 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_fill_h2c_cmd [2021-11-21 01:18:50,093 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-21 01:18:50,093 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-21 01:18:52,096 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:18:52,106 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:18:52,637 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:21:39,350 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:21:49,105 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:21:49,105 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-11-21 01:21:49,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:21:49 BoogieIcfgContainer [2021-11-21 01:21:49,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:21:49,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:21:49,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:21:49,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:21:49,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:18:39" (1/3) ... [2021-11-21 01:21:49,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726f8854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:21:49, skipping insertion in model container [2021-11-21 01:21:49,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:47" (2/3) ... [2021-11-21 01:21:49,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726f8854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:21:49, skipping insertion in model container [2021-11-21 01:21:49,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:21:49" (3/3) ... [2021-11-21 01:21:49,132 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8723be--rtl8723be.ko-entry_point.cil.out.i [2021-11-21 01:21:49,139 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:21:49,139 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:21:49,224 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:21:49,232 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 [2021-11-21 01:21:49,233 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:21:49,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 4936 states, 3047 states have (on average 1.3803741384968822) internal successors, (4206), 3195 states have internal predecessors, (4206), 1732 states have call successors, (1732), 159 states have call predecessors, (1732), 158 states have return successors, (1727), 1654 states have call predecessors, (1727), 1727 states have call successors, (1727) [2021-11-21 01:21:49,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-21 01:21:49,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:21:49,398 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:21:49,399 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:21:49,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:21:49,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1007042671, now seen corresponding path program 1 times [2021-11-21 01:21:49,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:21:49,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971634828] [2021-11-21 01:21:49,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:21:49,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:21:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:21:51,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1113 trivial. 0 not checked. [2021-11-21 01:21:51,615 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:21:51,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971634828] [2021-11-21 01:21:51,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971634828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:21:51,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:21:51,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:21:51,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6717393] [2021-11-21 01:21:51,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:21:51,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:21:51,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:21:51,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:21:51,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:21:51,691 INFO L87 Difference]: Start difference. First operand has 4936 states, 3047 states have (on average 1.3803741384968822) internal successors, (4206), 3195 states have internal predecessors, (4206), 1732 states have call successors, (1732), 159 states have call predecessors, (1732), 158 states have return successors, (1727), 1654 states have call predecessors, (1727), 1727 states have call successors, (1727) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2021-11-21 01:21:54,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:21:56,852 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:21:58,895 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:02,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:06,113 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:09,576 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:14,212 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:16,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:17,611 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:19,462 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:21,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:22,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:22:22,119 INFO L93 Difference]: Finished difference Result 11891 states and 18494 transitions. [2021-11-21 01:22:22,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:22:22,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 207 [2021-11-21 01:22:22,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:22:22,230 INFO L225 Difference]: With dead ends: 11891 [2021-11-21 01:22:22,230 INFO L226 Difference]: Without dead ends: 7533 [2021-11-21 01:22:22,280 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 [2021-11-21 01:22:22,289 INFO L933 BasicCegarLoop]: 7643 mSDtfsCounter, 5892 mSDsluCounter, 6226 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 15 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5909 SdHoareTripleChecker+Valid, 13497 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:22:22,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5909 Valid, 13497 Invalid, 836 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 813 Invalid, 8 Unknown, 0 Unchecked, 29.5s Time] [2021-11-21 01:22:22,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7533 states. [2021-11-21 01:22:23,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7533 to 7527. [2021-11-21 01:22:23,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7527 states, 4739 states have (on average 1.3760286980375607) internal successors, (6521), 4957 states have internal predecessors, (6521), 2523 states have call successors, (2523), 266 states have call predecessors, (2523), 264 states have return successors, (2535), 2401 states have call predecessors, (2535), 2522 states have call successors, (2535) [2021-11-21 01:22:23,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7527 states to 7527 states and 11579 transitions. [2021-11-21 01:22:23,839 INFO L78 Accepts]: Start accepts. Automaton has 7527 states and 11579 transitions. Word has length 207 [2021-11-21 01:22:23,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:22:23,845 INFO L470 AbstractCegarLoop]: Abstraction has 7527 states and 11579 transitions. [2021-11-21 01:22:23,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2021-11-21 01:22:23,849 INFO L276 IsEmpty]: Start isEmpty. Operand 7527 states and 11579 transitions. [2021-11-21 01:22:23,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-21 01:22:23,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:22:23,867 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:22:23,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:22:23,868 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:22:23,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:22:23,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1926210055, now seen corresponding path program 1 times [2021-11-21 01:22:23,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:22:23,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531826664] [2021-11-21 01:22:23,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:22:23,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:22:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:22:25,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1113 trivial. 0 not checked. [2021-11-21 01:22:25,482 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:22:25,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531826664] [2021-11-21 01:22:25,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531826664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:22:25,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:22:25,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:22:25,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022357926] [2021-11-21 01:22:25,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:22:25,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:22:25,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:22:25,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:22:25,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:22:25,486 INFO L87 Difference]: Start difference. First operand 7527 states and 11579 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-21 01:22:27,791 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:30,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:32,947 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:36,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:39,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:43,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:46,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:52,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:54,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:56,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:57,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:22:59,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:01,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:04,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:04,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:23:04,397 INFO L93 Difference]: Finished difference Result 14713 states and 22793 transitions. [2021-11-21 01:23:04,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:23:04,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 210 [2021-11-21 01:23:04,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:23:04,596 INFO L225 Difference]: With dead ends: 14713 [2021-11-21 01:23:04,596 INFO L226 Difference]: Without dead ends: 14708 [2021-11-21 01:23:04,611 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 [2021-11-21 01:23:04,612 INFO L933 BasicCegarLoop]: 7896 mSDtfsCounter, 5530 mSDsluCounter, 14307 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5541 SdHoareTripleChecker+Valid, 21398 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:23:04,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5541 Valid, 21398 Invalid, 1295 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1286 Invalid, 9 Unknown, 0 Unchecked, 38.3s Time] [2021-11-21 01:23:04,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14708 states. [2021-11-21 01:23:06,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14708 to 14692. [2021-11-21 01:23:06,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14692 states, 9247 states have (on average 1.3781767059586894) internal successors, (12744), 9681 states have internal predecessors, (12744), 4928 states have call successors, (4928), 522 states have call predecessors, (4928), 516 states have return successors, (5096), 4682 states have call predecessors, (5096), 4927 states have call successors, (5096) [2021-11-21 01:23:06,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14692 states to 14692 states and 22768 transitions. [2021-11-21 01:23:06,424 INFO L78 Accepts]: Start accepts. Automaton has 14692 states and 22768 transitions. Word has length 210 [2021-11-21 01:23:06,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:23:06,427 INFO L470 AbstractCegarLoop]: Abstraction has 14692 states and 22768 transitions. [2021-11-21 01:23:06,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-21 01:23:06,427 INFO L276 IsEmpty]: Start isEmpty. Operand 14692 states and 22768 transitions. [2021-11-21 01:23:06,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-11-21 01:23:06,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:23:06,448 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 14, 14, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:23:06,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:23:06,449 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:23:06,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:23:06,449 INFO L85 PathProgramCache]: Analyzing trace with hash 621069605, now seen corresponding path program 1 times [2021-11-21 01:23:06,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:23:06,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941870795] [2021-11-21 01:23:06,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:23:06,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:23:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:23:07,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1130 trivial. 0 not checked. [2021-11-21 01:23:07,323 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:23:07,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941870795] [2021-11-21 01:23:07,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941870795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:23:07,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:23:07,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:23:07,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426387548] [2021-11-21 01:23:07,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:23:07,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:23:07,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:23:07,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:23:07,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:23:07,329 INFO L87 Difference]: Start difference. First operand 14692 states and 22768 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-21 01:23:09,595 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:13,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:15,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:18,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:21,472 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:23,972 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:26,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:30,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:33,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:33,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:23:33,653 INFO L93 Difference]: Finished difference Result 29622 states and 45916 transitions. [2021-11-21 01:23:33,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:23:33,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 271 [2021-11-21 01:23:33,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:23:33,784 INFO L225 Difference]: With dead ends: 29622 [2021-11-21 01:23:33,784 INFO L226 Difference]: Without dead ends: 15001 [2021-11-21 01:23:34,045 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 [2021-11-21 01:23:34,050 INFO L933 BasicCegarLoop]: 5603 mSDtfsCounter, 128 mSDsluCounter, 5709 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 10955 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:23:34,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 10955 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 955 Invalid, 9 Unknown, 0 Unchecked, 25.7s Time] [2021-11-21 01:23:34,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15001 states. [2021-11-21 01:23:35,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15001 to 14994. [2021-11-21 01:23:35,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14994 states, 9501 states have (on average 1.3846963477528682) internal successors, (13156), 9937 states have internal predecessors, (13156), 4960 states have call successors, (4960), 538 states have call predecessors, (4960), 532 states have return successors, (5128), 4712 states have call predecessors, (5128), 4959 states have call successors, (5128) [2021-11-21 01:23:35,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14994 states to 14994 states and 23244 transitions. [2021-11-21 01:23:35,828 INFO L78 Accepts]: Start accepts. Automaton has 14994 states and 23244 transitions. Word has length 271 [2021-11-21 01:23:35,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:23:35,830 INFO L470 AbstractCegarLoop]: Abstraction has 14994 states and 23244 transitions. [2021-11-21 01:23:35,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-21 01:23:35,830 INFO L276 IsEmpty]: Start isEmpty. Operand 14994 states and 23244 transitions. [2021-11-21 01:23:35,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-11-21 01:23:35,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:23:35,855 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 14, 14, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:23:35,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:23:35,856 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:23:35,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:23:35,857 INFO L85 PathProgramCache]: Analyzing trace with hash 540478531, now seen corresponding path program 1 times [2021-11-21 01:23:35,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:23:35,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976484734] [2021-11-21 01:23:35,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:23:35,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:23:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:23:36,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1590 trivial. 0 not checked. [2021-11-21 01:23:36,744 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:23:36,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976484734] [2021-11-21 01:23:36,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976484734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:23:36,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:23:36,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:23:36,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433376914] [2021-11-21 01:23:36,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:23:36,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:23:36,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:23:36,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:23:36,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:23:36,748 INFO L87 Difference]: Start difference. First operand 14994 states and 23244 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-21 01:23:39,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:42,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:44,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:48,567 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:51,492 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:54,446 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:23:58,100 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:24:00,406 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:24:02,906 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:24:03,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:24:03,390 INFO L93 Difference]: Finished difference Result 42824 states and 66356 transitions. [2021-11-21 01:24:03,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:24:03,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 307 [2021-11-21 01:24:03,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:24:03,600 INFO L225 Difference]: With dead ends: 42824 [2021-11-21 01:24:03,601 INFO L226 Difference]: Without dead ends: 27869 [2021-11-21 01:24:03,874 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 [2021-11-21 01:24:03,876 INFO L933 BasicCegarLoop]: 7050 mSDtfsCounter, 4993 mSDsluCounter, 5628 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 150 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5002 SdHoareTripleChecker+Valid, 12322 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:24:03,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5002 Valid, 12322 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1019 Invalid, 8 Unknown, 0 Unchecked, 25.9s Time] [2021-11-21 01:24:03,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27869 states. [2021-11-21 01:24:06,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27869 to 27852. [2021-11-21 01:24:06,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27852 states, 17719 states have (on average 1.371973587674248) internal successors, (24310), 18543 states have internal predecessors, (24310), 9122 states have call successors, (9122), 1022 states have call predecessors, (9122), 1010 states have return successors, (9418), 8632 states have call predecessors, (9418), 9121 states have call successors, (9418) [2021-11-21 01:24:06,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27852 states to 27852 states and 42850 transitions. [2021-11-21 01:24:06,850 INFO L78 Accepts]: Start accepts. Automaton has 27852 states and 42850 transitions. Word has length 307 [2021-11-21 01:24:06,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:24:06,851 INFO L470 AbstractCegarLoop]: Abstraction has 27852 states and 42850 transitions. [2021-11-21 01:24:06,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-21 01:24:06,852 INFO L276 IsEmpty]: Start isEmpty. Operand 27852 states and 42850 transitions. [2021-11-21 01:24:06,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-11-21 01:24:06,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:24:06,872 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 14, 14, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:24:06,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:24:06,873 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:24:06,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:24:06,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1585091167, now seen corresponding path program 1 times [2021-11-21 01:24:06,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:24:06,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761454532] [2021-11-21 01:24:06,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:24:06,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:24:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:24:08,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2021-11-21 01:24:08,402 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:24:08,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761454532] [2021-11-21 01:24:08,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761454532] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:24:08,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734802295] [2021-11-21 01:24:08,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:24:08,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:24:08,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:24:08,409 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:24:08,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:24:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:24:12,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 11154 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-21 01:24:12,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:24:13,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 1181 trivial. 0 not checked. [2021-11-21 01:24:13,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:24:13,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734802295] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:24:13,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:24:13,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2021-11-21 01:24:13,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442491009] [2021-11-21 01:24:13,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:24:13,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:24:13,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:24:13,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:24:13,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:24:13,641 INFO L87 Difference]: Start difference. First operand 27852 states and 42850 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 4 states have call successors, (49), 4 states have call predecessors, (49), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-21 01:24:16,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:24:19,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:24:22,685 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:24:24,217 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:24:26,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:24:30,888 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:24:36,648 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:24:44,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:24:50,321 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:24:55,251 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:25:07,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:25:09,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:25:12,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:25:23,570 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:25:25,645 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:25:28,708 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:25:33,682 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:25:37,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:25:39,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:25:42,475 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:25:46,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:25:52,421 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:25:54,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:25:54,601 INFO L93 Difference]: Finished difference Result 44286 states and 68674 transitions. [2021-11-21 01:25:54,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:25:54,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 4 states have call successors, (49), 4 states have call predecessors, (49), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 307 [2021-11-21 01:25:54,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:25:55,003 INFO L225 Difference]: With dead ends: 44286 [2021-11-21 01:25:55,003 INFO L226 Difference]: Without dead ends: 44281 [2021-11-21 01:25:55,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:25:55,030 INFO L933 BasicCegarLoop]: 5071 mSDtfsCounter, 8338 mSDsluCounter, 6839 mSDsCounter, 0 mSdLazyCounter, 12389 mSolverCounterSat, 5548 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 92.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9522 SdHoareTripleChecker+Valid, 11534 SdHoareTripleChecker+Invalid, 17958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5548 IncrementalHoareTripleChecker+Valid, 12389 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:25:55,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9522 Valid, 11534 Invalid, 17958 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5548 Valid, 12389 Invalid, 21 Unknown, 0 Unchecked, 99.2s Time] [2021-11-21 01:25:55,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44281 states. [2021-11-21 01:25:59,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44281 to 44186. [2021-11-21 01:25:59,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44186 states, 28034 states have (on average 1.3682314332596133) internal successors, (38357), 29354 states have internal predecessors, (38357), 14526 states have call successors, (14526), 1555 states have call predecessors, (14526), 1625 states have return successors, (15645), 13848 states have call predecessors, (15645), 14525 states have call successors, (15645) [2021-11-21 01:25:59,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44186 states to 44186 states and 68528 transitions. [2021-11-21 01:25:59,852 INFO L78 Accepts]: Start accepts. Automaton has 44186 states and 68528 transitions. Word has length 307 [2021-11-21 01:25:59,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:25:59,854 INFO L470 AbstractCegarLoop]: Abstraction has 44186 states and 68528 transitions. [2021-11-21 01:25:59,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 4 states have call successors, (49), 4 states have call predecessors, (49), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-21 01:25:59,854 INFO L276 IsEmpty]: Start isEmpty. Operand 44186 states and 68528 transitions. [2021-11-21 01:26:00,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2021-11-21 01:26:00,526 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:26:00,528 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 15, 15, 8, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:26:00,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:26:00,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:26:00,757 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:26:00,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:26:00,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1362635477, now seen corresponding path program 1 times [2021-11-21 01:26:00,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:26:00,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411370336] [2021-11-21 01:26:00,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:00,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:26:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:26:02,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2064 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 1998 trivial. 0 not checked. [2021-11-21 01:26:02,549 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:26:02,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411370336] [2021-11-21 01:26:02,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411370336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:26:02,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:26:02,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:26:02,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438704056] [2021-11-21 01:26:02,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:26:02,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:26:02,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:26:02,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:26:02,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:26:02,553 INFO L87 Difference]: Start difference. First operand 44186 states and 68528 transitions. Second operand has 5 states, 5 states have (on average 48.0) internal successors, (240), 4 states have internal predecessors, (240), 2 states have call successors, (91), 2 states have call predecessors, (91), 3 states have return successors, (91), 3 states have call predecessors, (91), 2 states have call successors, (91) [2021-11-21 01:26:04,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:08,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:10,589 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:14,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:16,745 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:20,531 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:23,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:27,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:29,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:31,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:33,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:36,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:38,791 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:40,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:42,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:43,938 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:47,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:26:47,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:26:47,670 INFO L93 Difference]: Finished difference Result 88379 states and 138877 transitions. [2021-11-21 01:26:47,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:26:47,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 4 states have internal predecessors, (240), 2 states have call successors, (91), 2 states have call predecessors, (91), 3 states have return successors, (91), 3 states have call predecessors, (91), 2 states have call successors, (91) Word has length 597 [2021-11-21 01:26:47,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:26:48,272 INFO L225 Difference]: With dead ends: 88379 [2021-11-21 01:26:48,272 INFO L226 Difference]: Without dead ends: 44264 [2021-11-21 01:26:48,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:26:48,524 INFO L933 BasicCegarLoop]: 5582 mSDtfsCounter, 2 mSDsluCounter, 17824 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22323 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:26:48,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 22323 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1452 Invalid, 11 Unknown, 0 Unchecked, 43.5s Time] [2021-11-21 01:26:48,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44264 states. [2021-11-21 01:26:52,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44264 to 44234. [2021-11-21 01:26:52,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44234 states, 28070 states have (on average 1.3677591734948344) internal successors, (38393), 29390 states have internal predecessors, (38393), 14526 states have call successors, (14526), 1555 states have call predecessors, (14526), 1637 states have return successors, (15696), 13860 states have call predecessors, (15696), 14525 states have call successors, (15696) [2021-11-21 01:26:53,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44234 states to 44234 states and 68615 transitions. [2021-11-21 01:26:53,369 INFO L78 Accepts]: Start accepts. Automaton has 44234 states and 68615 transitions. Word has length 597 [2021-11-21 01:26:53,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:26:53,373 INFO L470 AbstractCegarLoop]: Abstraction has 44234 states and 68615 transitions. [2021-11-21 01:26:53,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 4 states have internal predecessors, (240), 2 states have call successors, (91), 2 states have call predecessors, (91), 3 states have return successors, (91), 3 states have call predecessors, (91), 2 states have call successors, (91) [2021-11-21 01:26:53,373 INFO L276 IsEmpty]: Start isEmpty. Operand 44234 states and 68615 transitions. [2021-11-21 01:26:53,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2021-11-21 01:26:53,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:26:53,792 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 27, 15, 15, 8, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:26:53,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:26:53,793 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:26:53,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:26:53,794 INFO L85 PathProgramCache]: Analyzing trace with hash -111992827, now seen corresponding path program 1 times [2021-11-21 01:26:53,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:26:53,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904645206] [2021-11-21 01:26:53,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:53,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:26:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:26:56,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2064 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2056 trivial. 0 not checked. [2021-11-21 01:26:56,261 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:26:56,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904645206] [2021-11-21 01:26:56,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904645206] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:26:56,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:26:56,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:26:56,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799847680] [2021-11-21 01:26:56,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:26:56,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:26:56,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:26:56,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:26:56,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:26:56,268 INFO L87 Difference]: Start difference. First operand 44234 states and 68615 transitions. Second operand has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 3 states have call successors, (92), 2 states have call predecessors, (92), 4 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) [2021-11-21 01:26:58,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:02,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:04,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:09,472 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:11,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:15,387 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:19,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:22,708 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:25,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:27,076 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:28,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:32,341 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:35,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:36,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:37,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:39,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:41,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:45,025 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:47,179 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:47,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:27:47,485 INFO L93 Difference]: Finished difference Result 88837 states and 139620 transitions. [2021-11-21 01:27:47,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:27:47,486 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 3 states have call successors, (92), 2 states have call predecessors, (92), 4 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) Word has length 601 [2021-11-21 01:27:47,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:27:48,089 INFO L225 Difference]: With dead ends: 88837 [2021-11-21 01:27:48,090 INFO L226 Difference]: Without dead ends: 44674 [2021-11-21 01:27:48,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:27:48,309 INFO L933 BasicCegarLoop]: 5578 mSDtfsCounter, 35 mSDsluCounter, 23631 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 32 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 27760 SdHoareTripleChecker+Invalid, 2080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:27:48,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 27760 Invalid, 2080 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 2036 Invalid, 12 Unknown, 0 Unchecked, 49.5s Time] [2021-11-21 01:27:48,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44674 states. [2021-11-21 01:27:51,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44674 to 44674. [2021-11-21 01:27:51,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44674 states, 28354 states have (on average 1.3684488960993157) internal successors, (38801), 29686 states have internal predecessors, (38801), 14650 states have call successors, (14650), 1579 states have call predecessors, (14650), 1669 states have return successors, (15891), 13980 states have call predecessors, (15891), 14649 states have call successors, (15891) [2021-11-21 01:27:52,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44674 states to 44674 states and 69342 transitions. [2021-11-21 01:27:52,513 INFO L78 Accepts]: Start accepts. Automaton has 44674 states and 69342 transitions. Word has length 601 [2021-11-21 01:27:52,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:27:52,514 INFO L470 AbstractCegarLoop]: Abstraction has 44674 states and 69342 transitions. [2021-11-21 01:27:52,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 3 states have call successors, (92), 2 states have call predecessors, (92), 4 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) [2021-11-21 01:27:52,515 INFO L276 IsEmpty]: Start isEmpty. Operand 44674 states and 69342 transitions. [2021-11-21 01:27:52,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2021-11-21 01:27:52,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:52,762 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 27, 15, 15, 11, 11, 11, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:27:52,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:27:52,762 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:27:52,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:52,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1388379363, now seen corresponding path program 1 times [2021-11-21 01:27:52,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:27:52,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319294172] [2021-11-21 01:27:52,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:52,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:27:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:54,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2182 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 2169 trivial. 0 not checked. [2021-11-21 01:27:54,475 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:27:54,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319294172] [2021-11-21 01:27:54,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319294172] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:27:54,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853872911] [2021-11-21 01:27:54,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:54,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:27:54,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:27:54,481 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:27:54,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:27:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:58,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 13679 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 01:27:58,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:27:59,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2182 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 1784 trivial. 0 not checked. [2021-11-21 01:27:59,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:27:59,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853872911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:27:59,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:27:59,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2021-11-21 01:27:59,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013909299] [2021-11-21 01:27:59,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:59,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:27:59,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:27:59,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:27:59,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:27:59,888 INFO L87 Difference]: Start difference. First operand 44674 states and 69342 transitions. Second operand has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 2 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2021-11-21 01:28:02,087 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:05,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:07,310 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:11,327 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:14,876 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:18,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:20,116 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:22,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:28,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:30,789 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:32,815 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:34,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:36,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:28:36,196 INFO L93 Difference]: Finished difference Result 89229 states and 140251 transitions. [2021-11-21 01:28:36,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:28:36,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 2 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 633 [2021-11-21 01:28:36,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:28:36,448 INFO L225 Difference]: With dead ends: 89229 [2021-11-21 01:28:36,448 INFO L226 Difference]: Without dead ends: 44626 [2021-11-21 01:28:36,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:28:36,629 INFO L933 BasicCegarLoop]: 5574 mSDtfsCounter, 125 mSDsluCounter, 11687 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 63 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 16539 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:28:36,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 16539 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1086 Invalid, 10 Unknown, 0 Unchecked, 34.5s Time] [2021-11-21 01:28:36,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44626 states. [2021-11-21 01:28:40,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44626 to 44626. [2021-11-21 01:28:40,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44626 states, 28330 states have (on average 1.3679138722202613) internal successors, (38753), 29662 states have internal predecessors, (38753), 14626 states have call successors, (14626), 1579 states have call predecessors, (14626), 1669 states have return successors, (15867), 13956 states have call predecessors, (15867), 14625 states have call successors, (15867) [2021-11-21 01:28:40,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44626 states to 44626 states and 69246 transitions. [2021-11-21 01:28:40,705 INFO L78 Accepts]: Start accepts. Automaton has 44626 states and 69246 transitions. Word has length 633 [2021-11-21 01:28:40,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:28:40,707 INFO L470 AbstractCegarLoop]: Abstraction has 44626 states and 69246 transitions. [2021-11-21 01:28:40,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 2 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2021-11-21 01:28:40,708 INFO L276 IsEmpty]: Start isEmpty. Operand 44626 states and 69246 transitions. [2021-11-21 01:28:40,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2021-11-21 01:28:40,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:28:40,910 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 27, 15, 15, 8, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:28:40,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-21 01:28:41,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:28:41,111 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:28:41,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:28:41,112 INFO L85 PathProgramCache]: Analyzing trace with hash -845427539, now seen corresponding path program 1 times [2021-11-21 01:28:41,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:28:41,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694064346] [2021-11-21 01:28:41,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:41,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:28:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:28:42,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2064 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2056 trivial. 0 not checked. [2021-11-21 01:28:42,975 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:28:42,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694064346] [2021-11-21 01:28:42,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694064346] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:28:42,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:28:42,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-21 01:28:42,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225114668] [2021-11-21 01:28:42,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:28:42,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 01:28:42,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:28:42,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 01:28:42,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:28:42,978 INFO L87 Difference]: Start difference. First operand 44626 states and 69246 transitions. Second operand has 7 states, 7 states have (on average 34.285714285714285) internal successors, (240), 7 states have internal predecessors, (240), 3 states have call successors, (92), 2 states have call predecessors, (92), 4 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) [2021-11-21 01:28:45,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:49,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:52,045 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:28:57,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:01,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:05,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:09,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:13,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:14,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:20,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:23,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:25,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:26,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:28,252 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:30,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:32,301 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:36,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:29:36,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:29:36,853 INFO L93 Difference]: Finished difference Result 89237 states and 140211 transitions. [2021-11-21 01:29:36,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 01:29:36,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.285714285714285) internal successors, (240), 7 states have internal predecessors, (240), 3 states have call successors, (92), 2 states have call predecessors, (92), 4 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) Word has length 602 [2021-11-21 01:29:36,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:29:37,103 INFO L225 Difference]: With dead ends: 89237 [2021-11-21 01:29:37,103 INFO L226 Difference]: Without dead ends: 44650 [2021-11-21 01:29:37,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:29:37,280 INFO L933 BasicCegarLoop]: 5550 mSDtfsCounter, 59 mSDsluCounter, 29386 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 61 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 33135 SdHoareTripleChecker+Invalid, 2531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:29:37,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 33135 Invalid, 2531 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [61 Valid, 2458 Invalid, 12 Unknown, 0 Unchecked, 51.8s Time] [2021-11-21 01:29:37,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44650 states. [2021-11-21 01:29:41,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44650 to 44650. [2021-11-21 01:29:41,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44650 states, 28342 states have (on average 1.3677580975231105) internal successors, (38765), 29686 states have internal predecessors, (38765), 14626 states have call successors, (14626), 1579 states have call predecessors, (14626), 1681 states have return successors, (15863), 13956 states have call predecessors, (15863), 14625 states have call successors, (15863) [2021-11-21 01:29:41,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44650 states to 44650 states and 69254 transitions. [2021-11-21 01:29:41,691 INFO L78 Accepts]: Start accepts. Automaton has 44650 states and 69254 transitions. Word has length 602 [2021-11-21 01:29:41,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:29:41,704 INFO L470 AbstractCegarLoop]: Abstraction has 44650 states and 69254 transitions. [2021-11-21 01:29:41,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.285714285714285) internal successors, (240), 7 states have internal predecessors, (240), 3 states have call successors, (92), 2 states have call predecessors, (92), 4 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) [2021-11-21 01:29:41,704 INFO L276 IsEmpty]: Start isEmpty. Operand 44650 states and 69254 transitions. [2021-11-21 01:29:41,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2021-11-21 01:29:41,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:29:41,870 INFO L514 BasicCegarLoop]: trace histogram [29, 29, 27, 15, 15, 11, 11, 11, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:29:41,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:29:41,870 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:29:41,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:29:41,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1360771519, now seen corresponding path program 1 times [2021-11-21 01:29:41,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:29:41,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849101948] [2021-11-21 01:29:41,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:29:41,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:29:42,427 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:29:42,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [828994742] [2021-11-21 01:29:42,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:29:42,428 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:29:42,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:29:42,440 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:29:42,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abe243a8-87e5-4e48-a95a-0c39af2f77a1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:29:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:29:47,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 14360 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-21 01:29:47,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:29:51,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2403 backedges. 431 proven. 169 refuted. 0 times theorem prover too weak. 1803 trivial. 0 not checked. [2021-11-21 01:29:51,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:30:01,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2403 backedges. 18 proven. 20 refuted. 0 times theorem prover too weak. 2365 trivial. 0 not checked. [2021-11-21 01:30:01,515 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:30:01,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849101948] [2021-11-21 01:30:01,516 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:30:01,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828994742] [2021-11-21 01:30:01,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828994742] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:30:01,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1893931192] [2021-11-21 01:30:01,557 INFO L159 IcfgInterpreter]: Started Sifa with 395 locations of interest [2021-11-21 01:30:01,558 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:30:01,571 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-21 01:30:01,575 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:30:01,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-11-21 01:30:01,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822930767] [2021-11-21 01:30:01,576 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-21 01:30:01,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-21 01:30:01,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:30:01,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-21 01:30:01,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2021-11-21 01:30:01,580 INFO L87 Difference]: Start difference. First operand 44650 states and 69254 transitions. Second operand has 16 states, 16 states have (on average 22.75) internal successors, (364), 16 states have internal predecessors, (364), 10 states have call successors, (158), 7 states have call predecessors, (158), 10 states have return successors, (156), 11 states have call predecessors, (156), 9 states have call successors, (156) [2021-11-21 01:30:03,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:08,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:10,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:12,373 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:14,377 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:16,396 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:18,414 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:20,435 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:22,454 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:30,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:32,271 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:51,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:53,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:30:58,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:01,444 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:03,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:31:05,491 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []