./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.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_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 718a95fd2d27cb38002861c3cfa5a256ea936153fc96f7220d4978ac34f5d164 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:57:06,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:57:06,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:57:06,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:57:06,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:57:06,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:57:06,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:57:06,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:57:06,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:57:06,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:57:06,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:57:06,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:57:06,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:57:06,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:57:06,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:57:06,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:57:06,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:57:06,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:57:06,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:57:06,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:57:06,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:57:06,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:57:06,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:57:06,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:57:06,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:57:06,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:57:06,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:57:06,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:57:06,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:57:06,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:57:06,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:57:06,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:57:06,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:57:06,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:57:06,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:57:06,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:57:06,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:57:06,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:57:06,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:57:06,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:57:06,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:57:06,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 06:57:06,771 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:57:06,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:57:06,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:57:06,775 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:57:06,777 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:57:06,778 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:57:06,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:57:06,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:57:06,779 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:57:06,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:57:06,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:57:06,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:57:06,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:57:06,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:57:06,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:57:06,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:57:06,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:57:06,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:57:06,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:57:06,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:57:06,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:57:06,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:57:06,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:57:06,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:57:06,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:57:06,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:57:06,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:57:06,786 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:57:06,787 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:57:06,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:57:06,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:57:06,789 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 718a95fd2d27cb38002861c3cfa5a256ea936153fc96f7220d4978ac34f5d164 [2021-11-20 06:57:07,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:57:07,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:57:07,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:57:07,215 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:57:07,216 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:57:07,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i [2021-11-20 06:57:07,318 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF/data/538f7aa69/d7b2088cf13e4a7890c0393d9ba2f44e/FLAGee73e480f [2021-11-20 06:57:08,727 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:57:08,728 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i [2021-11-20 06:57:08,824 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF/data/538f7aa69/d7b2088cf13e4a7890c0393d9ba2f44e/FLAGee73e480f [2021-11-20 06:57:09,275 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF/data/538f7aa69/d7b2088cf13e4a7890c0393d9ba2f44e [2021-11-20 06:57:09,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:57:09,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:57:09,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:57:09,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:57:09,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:57:09,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:57:09" (1/1) ... [2021-11-20 06:57:09,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@606219b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:57:09, skipping insertion in model container [2021-11-20 06:57:09,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:57:09" (1/1) ... [2021-11-20 06:57:09,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:57:09,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:57:10,457 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4843] [2021-11-20 06:57:10,458 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4844-4845] [2021-11-20 06:57:10,621 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_c71987fd-8214-4f27-99d8-65af4d6d6fc3/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i[139081,139094] [2021-11-20 06:57:14,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:57:14,764 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:57:14,875 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4843] [2021-11-20 06:57:14,876 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4844-4845] [2021-11-20 06:57:14,880 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_c71987fd-8214-4f27-99d8-65af4d6d6fc3/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i[139081,139094] [2021-11-20 06:57:15,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:57:16,155 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:57:16,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:57:16 WrapperNode [2021-11-20 06:57:16,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:57:16,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:57:16,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:57:16,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:57:16,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:57:16" (1/1) ... [2021-11-20 06:57:16,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:57:16" (1/1) ... [2021-11-20 06:57:17,024 INFO L137 Inliner]: procedures = 453, calls = 6871, calls flagged for inlining = 212, calls inlined = 198, statements flattened = 12752 [2021-11-20 06:57:17,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:57:17,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:57:17,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:57:17,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:57:17,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:57:16" (1/1) ... [2021-11-20 06:57:17,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:57:16" (1/1) ... [2021-11-20 06:57:17,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:57:16" (1/1) ... [2021-11-20 06:57:17,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:57:16" (1/1) ... [2021-11-20 06:57:17,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:57:16" (1/1) ... [2021-11-20 06:57:17,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:57:16" (1/1) ... [2021-11-20 06:57:17,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:57:16" (1/1) ... [2021-11-20 06:57:17,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:57:17,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:57:17,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:57:17,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:57:17,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:57:16" (1/1) ... [2021-11-20 06:57:18,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:57:18,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:57:18,051 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:57:18,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c71987fd-8214-4f27-99d8-65af4d6d6fc3/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:57:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_poke_via_dsp [2021-11-20 06:57:18,114 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_poke_via_dsp [2021-11-20 06:57:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ac97_read [2021-11-20 06:57:18,115 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ac97_read [2021-11-20 06:57:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_open_clfe [2021-11-20 06:57:18,115 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_open_clfe [2021-11-20 06:57:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_src_task_scb [2021-11-20 06:57:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_src_task_scb [2021-11-20 06:57:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_hw_free [2021-11-20 06:57:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_hw_free [2021-11-20 06:57:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-20 06:57:18,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-20 06:57:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 06:57:18,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 06:57:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_hw_constraint_list [2021-11-20 06:57:18,117 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_hw_constraint_list [2021-11-20 06:57:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-20 06:57:18,118 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-20 06:57:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_scb_set_volume [2021-11-20 06:57:18,118 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_scb_set_volume [2021-11-20 06:57:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_pokeBA0 [2021-11-20 06:57:18,119 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_pokeBA0 [2021-11-20 06:57:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_close_iec958 [2021-11-20 06:57:18,119 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_close_iec958 [2021-11-20 06:57:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_close [2021-11-20 06:57:18,119 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_close [2021-11-20 06:57:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_set_ops [2021-11-20 06:57:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_set_ops [2021-11-20 06:57:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-20 06:57:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-20 06:57:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure dsp_load_parameter [2021-11-20 06:57:18,121 INFO L138 BoogieDeclarations]: Found implementation of procedure dsp_load_parameter [2021-11-20 06:57:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_free_scb [2021-11-20 06:57:18,121 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_free_scb [2021-11-20 06:57:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_create_card_entry [2021-11-20 06:57:18,122 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_create_card_entry [2021-11-20 06:57:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_free [2021-11-20 06:57:18,122 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_free [2021-11-20 06:57:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 06:57:18,123 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 06:57:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_hw_params [2021-11-20 06:57:18,123 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_hw_params [2021-11-20 06:57:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:57:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ac97_write [2021-11-20 06:57:18,124 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ac97_write [2021-11-20 06:57:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 06:57:18,125 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 06:57:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_generic_scb [2021-11-20 06:57:18,125 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_generic_scb [2021-11-20 06:57:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 06:57:18,126 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 06:57:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_proc_free_scb_desc [2021-11-20 06:57:18,127 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_proc_free_scb_desc [2021-11-20 06:57:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure params_period_bytes [2021-11-20 06:57:18,129 INFO L138 BoogieDeclarations]: Found implementation of procedure params_period_bytes [2021-11-20 06:57:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 06:57:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_proc_register_scb_desc [2021-11-20 06:57:18,129 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_proc_register_scb_desc [2021-11-20 06:57:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_mix_only_scb [2021-11-20 06:57:18,130 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_mix_only_scb [2021-11-20 06:57:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_transfer [2021-11-20 06:57:18,131 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_transfer [2021-11-20 06:57:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_clear_BA1 [2021-11-20 06:57:18,132 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_clear_BA1 [2021-11-20 06:57:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-20 06:57:18,132 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-20 06:57:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ctl_add [2021-11-20 06:57:18,132 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ctl_add [2021-11-20 06:57:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure snd_dma_free_pages [2021-11-20 06:57:18,134 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_dma_free_pages [2021-11-20 06:57:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 06:57:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_indirect_pointer [2021-11-20 06:57:18,134 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_indirect_pointer [2021-11-20 06:57:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_set_play_sample_rate [2021-11-20 06:57:18,135 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_set_play_sample_rate [2021-11-20 06:57:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:57:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 06:57:18,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 06:57:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_proc_start [2021-11-20 06:57:18,136 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_proc_start [2021-11-20 06:57:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 06:57:18,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 06:57:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_preallocate_pages_for_all [2021-11-20 06:57:18,137 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_preallocate_pages_for_all [2021-11-20 06:57:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_indirect_pointer [2021-11-20 06:57:18,138 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_indirect_pointer [2021-11-20 06:57:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_enable_spdif_out [2021-11-20 06:57:18,138 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_enable_spdif_out [2021-11-20 06:57:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-20 06:57:18,139 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-20 06:57:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_codec_write [2021-11-20 06:57:18,139 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_codec_write [2021-11-20 06:57:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 06:57:18,140 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 06:57:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_direct_pointer [2021-11-20 06:57:18,141 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_direct_pointer [2021-11-20 06:57:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_free_entry [2021-11-20 06:57:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_free_entry [2021-11-20 06:57:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_cs46xx_remove [2021-11-20 06:57:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_cs46xx_remove [2021-11-20 06:57:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_pcm_link [2021-11-20 06:57:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_pcm_link [2021-11-20 06:57:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure voyetra_setup_eapd_slot [2021-11-20 06:57:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure voyetra_setup_eapd_slot [2021-11-20 06:57:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:57:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:57:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 06:57:18,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 06:57:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:57:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_resume [2021-11-20 06:57:18,145 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_resume [2021-11-20 06:57:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_create_scb [2021-11-20 06:57:18,145 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_create_scb [2021-11-20 06:57:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_trigger [2021-11-20 06:57:18,147 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_trigger [2021-11-20 06:57:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_trigger [2021-11-20 06:57:18,150 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_trigger [2021-11-20 06:57:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure _cs46xx_playback_open_channel [2021-11-20 06:57:18,151 INFO L138 BoogieDeclarations]: Found implementation of procedure _cs46xx_playback_open_channel [2021-11-20 06:57:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 06:57:18,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 06:57:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-20 06:57:18,154 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-20 06:57:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 06:57:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 06:57:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_prepare [2021-11-20 06:57:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_prepare [2021-11-20 06:57:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_pcm_serial_input_scb [2021-11-20 06:57:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_pcm_serial_input_scb [2021-11-20 06:57:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure snd_power_change_state [2021-11-20 06:57:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_power_change_state [2021-11-20 06:57:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_src_unlink [2021-11-20 06:57:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_src_unlink [2021-11-20 06:57:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure clkrun_init [2021-11-20 06:57:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure clkrun_init [2021-11-20 06:57:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 06:57:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 06:57:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure bytes_to_frames [2021-11-20 06:57:18,162 INFO L138 BoogieDeclarations]: Found implementation of procedure bytes_to_frames [2021-11-20 06:57:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_open_iec958 [2021-11-20 06:57:18,162 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_open_iec958 [2021-11-20 06:57:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_peek [2021-11-20 06:57:18,162 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_peek [2021-11-20 06:57:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-20 06:57:18,163 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-20 06:57:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure add_symbol [2021-11-20 06:57:18,163 INFO L138 BoogieDeclarations]: Found implementation of procedure add_symbol [2021-11-20 06:57:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:57:18,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:57:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_input_open [2021-11-20 06:57:18,164 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_input_open [2021-11-20 06:57:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_hw_stop [2021-11-20 06:57:18,164 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_hw_stop [2021-11-20 06:57:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure hw_param_interval_c [2021-11-20 06:57:18,165 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_param_interval_c [2021-11-20 06:57:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_set_capture_sample_rate [2021-11-20 06:57:18,165 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_set_capture_sample_rate [2021-11-20 06:57:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_transmit [2021-11-20 06:57:18,165 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_transmit [2021-11-20 06:57:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-20 06:57:18,166 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-20 06:57:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-20 06:57:18,166 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-20 06:57:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_buffer_bytes [2021-11-20 06:57:18,166 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_buffer_bytes [2021-11-20 06:57:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_detect_codec [2021-11-20 06:57:18,167 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_detect_codec [2021-11-20 06:57:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 06:57:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_reset [2021-11-20 06:57:18,167 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_reset [2021-11-20 06:57:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 06:57:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 06:57:18,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 06:57:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_open [2021-11-20 06:57:18,168 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_open [2021-11-20 06:57:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_codec_out_scb [2021-11-20 06:57:18,168 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_codec_out_scb [2021-11-20 06:57:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_disable_spdif_out [2021-11-20 06:57:18,169 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_disable_spdif_out [2021-11-20 06:57:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_clear_sample_buffer [2021-11-20 06:57:18,169 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_clear_sample_buffer [2021-11-20 06:57:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_malloc_pages [2021-11-20 06:57:18,170 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_malloc_pages [2021-11-20 06:57:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_close [2021-11-20 06:57:18,170 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_close [2021-11-20 06:57:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure amp_voyetra [2021-11-20 06:57:18,170 INFO L138 BoogieDeclarations]: Found implementation of procedure amp_voyetra [2021-11-20 06:57:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure get_segment_desc [2021-11-20 06:57:18,172 INFO L138 BoogieDeclarations]: Found implementation of procedure get_segment_desc [2021-11-20 06:57:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 06:57:18,172 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 06:57:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 06:57:18,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 06:57:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_create_task_tree [2021-11-20 06:57:18,173 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_create_task_tree [2021-11-20 06:57:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_hw_free [2021-11-20 06:57:18,174 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_hw_free [2021-11-20 06:57:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 06:57:18,174 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 06:57:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-20 06:57:18,174 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-20 06:57:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 06:57:18,175 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 06:57:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure free_module_desc [2021-11-20 06:57:18,175 INFO L138 BoogieDeclarations]: Found implementation of procedure free_module_desc [2021-11-20 06:57:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_new [2021-11-20 06:57:18,175 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_new [2021-11-20 06:57:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_create_generic_scb [2021-11-20 06:57:18,176 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_create_generic_scb [2021-11-20 06:57:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-20 06:57:18,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-20 06:57:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_suspend [2021-11-20 06:57:18,176 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_suspend [2021-11-20 06:57:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:57:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure snd_dma_alloc_pages [2021-11-20 06:57:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_dma_alloc_pages [2021-11-20 06:57:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-20 06:57:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-20 06:57:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_prepare [2021-11-20 06:57:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_prepare [2021-11-20 06:57:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:57:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_destroy_pcm_channel [2021-11-20 06:57:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_destroy_pcm_channel [2021-11-20 06:57:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_input_trigger [2021-11-20 06:57:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_input_trigger [2021-11-20 06:57:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-20 06:57:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-20 06:57:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_reset [2021-11-20 06:57:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_reset [2021-11-20 06:57:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 06:57:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_output_close [2021-11-20 06:57:18,180 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_output_close [2021-11-20 06:57:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 06:57:18,180 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 06:57:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ac97_resume [2021-11-20 06:57:18,180 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ac97_resume [2021-11-20 06:57:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ac97_suspend [2021-11-20 06:57:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ac97_suspend [2021-11-20 06:57:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_open_rear [2021-11-20 06:57:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_open_rear [2021-11-20 06:57:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-20 06:57:18,183 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-20 06:57:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_ac97_write [2021-11-20 06:57:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_ac97_write [2021-11-20 06:57:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-20 06:57:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-20 06:57:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_enable_stream_irqs [2021-11-20 06:57:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_enable_stream_irqs [2021-11-20 06:57:18,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 06:57:18,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 06:57:18,188 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_codec_read [2021-11-20 06:57:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_codec_read [2021-11-20 06:57:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_set_ops [2021-11-20 06:57:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_set_ops [2021-11-20 06:57:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ctl_new1 [2021-11-20 06:57:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ctl_new1 [2021-11-20 06:57:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_asynch_fg_tx_scb [2021-11-20 06:57:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_asynch_fg_tx_scb [2021-11-20 06:57:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_format_width [2021-11-20 06:57:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_format_width [2021-11-20 06:57:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_direct_pointer [2021-11-20 06:57:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_direct_pointer [2021-11-20 06:57:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_spos_update_scb [2021-11-20 06:57:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_spos_update_scb [2021-11-20 06:57:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_output_open [2021-11-20 06:57:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_output_open [2021-11-20 06:57:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-20 06:57:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-20 06:57:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 06:57:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 06:57:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:57:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-20 06:57:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-20 06:57:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 06:57:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 06:57:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_spos_destroy [2021-11-20 06:57:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_spos_destroy [2021-11-20 06:57:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_pcm_channel [2021-11-20 06:57:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_pcm_channel [2021-11-20 06:57:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_task_tree [2021-11-20 06:57:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_task_tree [2021-11-20 06:57:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_output_trigger [2021-11-20 06:57:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_output_trigger [2021-11-20 06:57:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-20 06:57:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-20 06:57:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure frames_to_bytes [2021-11-20 06:57:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure frames_to_bytes [2021-11-20 06:57:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_chip_init [2021-11-20 06:57:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_chip_init [2021-11-20 06:57:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_free_pages [2021-11-20 06:57:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_free_pages [2021-11-20 06:57:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_peekBA0 [2021-11-20 06:57:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_peekBA0 [2021-11-20 06:57:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2021-11-20 06:57:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2021-11-20 06:57:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure _wrap_all_bits [2021-11-20 06:57:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure _wrap_all_bits [2021-11-20 06:57:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_poke [2021-11-20 06:57:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_poke [2021-11-20 06:57:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure dsp_load_sample [2021-11-20 06:57:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure dsp_load_sample [2021-11-20 06:57:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_open [2021-11-20 06:57:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_open [2021-11-20 06:57:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_scb [2021-11-20 06:57:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_scb [2021-11-20 06:57:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_lookup_symbol [2021-11-20 06:57:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_lookup_symbol [2021-11-20 06:57:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_transfer [2021-11-20 06:57:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_transfer [2021-11-20 06:57:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_wait_for_fifo [2021-11-20 06:57:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_wait_for_fifo [2021-11-20 06:57:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_download [2021-11-20 06:57:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_download [2021-11-20 06:57:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_hw_params [2021-11-20 06:57:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_hw_params [2021-11-20 06:57:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_remove_scb [2021-11-20 06:57:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_remove_scb [2021-11-20 06:57:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_enable_spdif_hw [2021-11-20 06:57:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_enable_spdif_hw [2021-11-20 06:57:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2021-11-20 06:57:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2021-11-20 06:57:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-20 06:57:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-20 06:57:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_input_close [2021-11-20 06:57:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_input_close [2021-11-20 06:57:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 06:57:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 06:57:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 06:57:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 06:57:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:57:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_unlink_scb [2021-11-20 06:57:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_unlink_scb [2021-11-20 06:57:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_register [2021-11-20 06:57:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_register [2021-11-20 06:57:19,909 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:57:19,914 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:57:29,429 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 06:59:18,690 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:59:18,771 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:59:18,771 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-20 06:59:18,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:59:18 BoogieIcfgContainer [2021-11-20 06:59:18,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:59:18,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:59:18,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:59:18,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:59:18,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:57:09" (1/3) ... [2021-11-20 06:59:18,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c6c471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:59:18, skipping insertion in model container [2021-11-20 06:59:18,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:57:16" (2/3) ... [2021-11-20 06:59:18,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c6c471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:59:18, skipping insertion in model container [2021-11-20 06:59:18,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:59:18" (3/3) ... [2021-11-20 06:59:18,791 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i [2021-11-20 06:59:18,798 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:59:18,799 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:59:18,913 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:59:18,921 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=PETRI_NET, 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 [2021-11-20 06:59:18,921 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:59:19,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 4078 states, 2784 states have (on average 1.3922413793103448) internal successors, (3876), 2890 states have internal predecessors, (3876), 1137 states have call successors, (1137), 159 states have call predecessors, (1137), 158 states have return successors, (1119), 1111 states have call predecessors, (1119), 1119 states have call successors, (1119) [2021-11-20 06:59:19,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-20 06:59:19,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:59:19,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:59:19,070 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:59:19,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:59:19,076 INFO L85 PathProgramCache]: Analyzing trace with hash 78330796, now seen corresponding path program 1 times [2021-11-20 06:59:19,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:59:19,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271961473] [2021-11-20 06:59:19,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:59:19,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:59:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:20,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:59:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:20,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:59:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:20,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:59:20,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:59:20,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271961473] [2021-11-20 06:59:20,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271961473] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:59:20,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:59:20,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:59:20,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911685679] [2021-11-20 06:59:20,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:59:20,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:59:20,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:59:20,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:59:20,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:59:20,468 INFO L87 Difference]: Start difference. First operand has 4078 states, 2784 states have (on average 1.3922413793103448) internal successors, (3876), 2890 states have internal predecessors, (3876), 1137 states have call successors, (1137), 159 states have call predecessors, (1137), 158 states have return successors, (1119), 1111 states have call predecessors, (1119), 1119 states have call successors, (1119) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:59:25,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:30,019 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:32,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:37,932 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:40,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:43,844 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:49,810 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:52,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:59:57,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:00:01,491 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:06,427 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:09,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:00:11,125 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:00:13,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:15,629 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:18,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:20,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:22,932 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:25,047 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:27,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:29,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:31,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:33,896 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:36,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:38,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:41,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:43,848 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:43,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:00:43,943 INFO L93 Difference]: Finished difference Result 11757 states and 18342 transitions. [2021-11-20 07:00:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:00:43,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2021-11-20 07:00:43,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:00:44,104 INFO L225 Difference]: With dead ends: 11757 [2021-11-20 07:00:44,104 INFO L226 Difference]: Without dead ends: 7631 [2021-11-20 07:00:44,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:00:44,169 INFO L933 BasicCegarLoop]: 6664 mSDtfsCounter, 5630 mSDsluCounter, 7959 mSDsCounter, 0 mSdLazyCounter, 3851 mSolverCounterSat, 2894 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6382 SdHoareTripleChecker+Valid, 14623 SdHoareTripleChecker+Invalid, 6767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2894 IncrementalHoareTripleChecker+Valid, 3851 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:00:44,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6382 Valid, 14623 Invalid, 6767 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2894 Valid, 3851 Invalid, 22 Unknown, 0 Unchecked, 82.2s Time] [2021-11-20 07:00:44,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7631 states. [2021-11-20 07:00:44,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7631 to 7090. [2021-11-20 07:00:44,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7090 states, 4850 states have (on average 1.3905154639175257) internal successors, (6744), 4998 states have internal predecessors, (6744), 1947 states have call successors, (1947), 292 states have call predecessors, (1947), 292 states have return successors, (1953), 1930 states have call predecessors, (1953), 1945 states have call successors, (1953) [2021-11-20 07:00:45,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7090 states to 7090 states and 10644 transitions. [2021-11-20 07:00:45,054 INFO L78 Accepts]: Start accepts. Automaton has 7090 states and 10644 transitions. Word has length 33 [2021-11-20 07:00:45,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:00:45,055 INFO L470 AbstractCegarLoop]: Abstraction has 7090 states and 10644 transitions. [2021-11-20 07:00:45,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:00:45,055 INFO L276 IsEmpty]: Start isEmpty. Operand 7090 states and 10644 transitions. [2021-11-20 07:00:45,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-20 07:00:45,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:00:45,075 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:00:45,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:00:45,076 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:00:45,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:00:45,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1278970975, now seen corresponding path program 1 times [2021-11-20 07:00:45,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:00:45,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689446244] [2021-11-20 07:00:45,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:00:45,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:00:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:45,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:00:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:45,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 07:00:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:45,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:00:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:45,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 07:00:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:00:45,652 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 07:00:45,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:00:45,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689446244] [2021-11-20 07:00:45,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689446244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:00:45,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:00:45,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:00:45,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997224754] [2021-11-20 07:00:45,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:00:45,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:00:45,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:00:45,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:00:45,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:00:45,658 INFO L87 Difference]: Start difference. First operand 7090 states and 10644 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 07:00:49,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:51,332 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:55,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:00:57,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:00,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:05,645 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:07,647 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:10,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:20,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:24,557 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:28,763 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:34,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:36,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:43,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:01:45,394 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:01:48,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:51,833 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:53,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:56,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:01:59,801 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:02,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:04,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:06,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:08,704 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:10,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:12,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:14,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:16,895 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:18,919 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:20,939 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:22,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:24,740 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:26,975 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:29,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:31,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:34,001 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:36,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:39,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:41,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:43,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:45,350 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 [] [2021-11-20 07:02:45,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:02:45,503 INFO L93 Difference]: Finished difference Result 22159 states and 33881 transitions. [2021-11-20 07:02:45,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:02:45,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2021-11-20 07:02:45,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:02:45,696 INFO L225 Difference]: With dead ends: 22159 [2021-11-20 07:02:45,696 INFO L226 Difference]: Without dead ends: 15074 [2021-11-20 07:02:45,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:02:45,764 INFO L933 BasicCegarLoop]: 7470 mSDtfsCounter, 6773 mSDsluCounter, 8148 mSDsCounter, 0 mSdLazyCounter, 4288 mSolverCounterSat, 3037 mSolverCounterUnsat, 33 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7714 SdHoareTripleChecker+Valid, 15618 SdHoareTripleChecker+Invalid, 7358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3037 IncrementalHoareTripleChecker+Valid, 4288 IncrementalHoareTripleChecker+Invalid, 33 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:02:45,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7714 Valid, 15618 Invalid, 7358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3037 Valid, 4288 Invalid, 33 Unknown, 0 Unchecked, 118.5s Time] [2021-11-20 07:02:45,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15074 states. [2021-11-20 07:02:46,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15074 to 13995. [2021-11-20 07:02:46,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13995 states, 9570 states have (on average 1.3899686520376175) internal successors, (13302), 9866 states have internal predecessors, (13302), 3843 states have call successors, (3843), 580 states have call predecessors, (3843), 581 states have return successors, (3857), 3810 states have call predecessors, (3857), 3841 states have call successors, (3857) [2021-11-20 07:02:46,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13995 states to 13995 states and 21002 transitions. [2021-11-20 07:02:46,970 INFO L78 Accepts]: Start accepts. Automaton has 13995 states and 21002 transitions. Word has length 55 [2021-11-20 07:02:46,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:02:46,970 INFO L470 AbstractCegarLoop]: Abstraction has 13995 states and 21002 transitions. [2021-11-20 07:02:46,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 07:02:46,972 INFO L276 IsEmpty]: Start isEmpty. Operand 13995 states and 21002 transitions. [2021-11-20 07:02:46,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 07:02:46,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:02:46,984 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:02:46,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:02:46,985 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:02:46,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:46,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1736757413, now seen corresponding path program 1 times [2021-11-20 07:02:46,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:46,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210253693] [2021-11-20 07:02:46,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:46,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:47,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:02:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:47,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:02:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:47,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 07:02:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:47,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-20 07:02:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:47,637 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 07:02:47,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:02:47,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210253693] [2021-11-20 07:02:47,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210253693] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:02:47,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:02:47,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:02:47,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486177449] [2021-11-20 07:02:47,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:02:47,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:02:47,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:02:47,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:02:47,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:02:47,641 INFO L87 Difference]: Start difference. First operand 13995 states and 21002 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 07:02:51,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:55,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:02:57,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:02,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:07,096 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:14,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:20,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:24,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:27,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:30,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:35,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:03:37,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:39,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:03:41,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:44,039 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:46,435 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:48,476 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:50,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:55,022 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:57,205 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:03:59,435 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:01,641 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:03,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:05,834 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:07,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:09,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:11,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:13,980 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:15,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:17,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:19,833 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:22,068 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:24,109 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:26,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:28,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:31,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:33,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:36,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:38,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:40,662 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:42,724 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:42,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:04:42,869 INFO L93 Difference]: Finished difference Result 43824 states and 66947 transitions. [2021-11-20 07:04:42,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:04:42,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2021-11-20 07:04:42,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:04:43,145 INFO L225 Difference]: With dead ends: 43824 [2021-11-20 07:04:43,145 INFO L226 Difference]: Without dead ends: 29834 [2021-11-20 07:04:43,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:04:43,253 INFO L933 BasicCegarLoop]: 7570 mSDtfsCounter, 6765 mSDsluCounter, 8256 mSDsCounter, 0 mSdLazyCounter, 4288 mSolverCounterSat, 3040 mSolverCounterUnsat, 34 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 109.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7704 SdHoareTripleChecker+Valid, 15826 SdHoareTripleChecker+Invalid, 7362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3040 IncrementalHoareTripleChecker+Valid, 4288 IncrementalHoareTripleChecker+Invalid, 34 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 113.9s IncrementalHoareTripleChecker+Time [2021-11-20 07:04:43,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7704 Valid, 15826 Invalid, 7362 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3040 Valid, 4288 Invalid, 34 Unknown, 0 Unchecked, 113.9s Time] [2021-11-20 07:04:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29834 states. [2021-11-20 07:04:45,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29834 to 27683. [2021-11-20 07:04:45,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27683 states, 18924 states have (on average 1.3890298034242232) internal successors, (26286), 19514 states have internal predecessors, (26286), 7601 states have call successors, (7601), 1156 states have call predecessors, (7601), 1157 states have return successors, (7631), 7536 states have call predecessors, (7631), 7599 states have call successors, (7631) [2021-11-20 07:04:45,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27683 states to 27683 states and 41518 transitions. [2021-11-20 07:04:45,891 INFO L78 Accepts]: Start accepts. Automaton has 27683 states and 41518 transitions. Word has length 56 [2021-11-20 07:04:45,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:04:45,892 INFO L470 AbstractCegarLoop]: Abstraction has 27683 states and 41518 transitions. [2021-11-20 07:04:45,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 07:04:45,893 INFO L276 IsEmpty]: Start isEmpty. Operand 27683 states and 41518 transitions. [2021-11-20 07:04:45,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-20 07:04:45,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:04:45,917 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:04:45,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:04:45,918 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:04:45,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:04:45,919 INFO L85 PathProgramCache]: Analyzing trace with hash 731026740, now seen corresponding path program 1 times [2021-11-20 07:04:45,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:04:45,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743369025] [2021-11-20 07:04:45,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:04:45,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:04:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:04:46,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:04:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:04:46,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 07:04:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:04:46,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 07:04:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:04:46,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 07:04:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:04:46,854 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 07:04:46,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:04:46,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743369025] [2021-11-20 07:04:46,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743369025] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:04:46,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:04:46,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:04:46,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233274262] [2021-11-20 07:04:46,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:04:46,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:04:46,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:04:46,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:04:46,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:04:46,858 INFO L87 Difference]: Start difference. First operand 27683 states and 41518 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 07:04:50,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:52,544 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:57,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:04:59,483 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:04,681 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:07,607 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:11,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:19,356 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:26,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:29,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:32,125 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:38,933 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:05:40,993 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:05:43,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:46,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:48,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:50,892 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:54,569 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:56,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:05:58,805 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:00,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:03,126 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:05,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:07,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:09,385 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:11,496 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:13,518 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:15,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:17,749 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:20,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:22,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:24,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:27,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:30,252 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:32,652 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 [] [2021-11-20 07:06:32,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:06:32,808 INFO L93 Difference]: Finished difference Result 86676 states and 132223 transitions. [2021-11-20 07:06:32,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:06:32,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 58 [2021-11-20 07:06:32,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:06:33,510 INFO L225 Difference]: With dead ends: 86676 [2021-11-20 07:06:33,510 INFO L226 Difference]: Without dead ends: 58998 [2021-11-20 07:06:33,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:06:33,689 INFO L933 BasicCegarLoop]: 7738 mSDtfsCounter, 6743 mSDsluCounter, 8383 mSDsCounter, 0 mSdLazyCounter, 4299 mSolverCounterSat, 2973 mSolverCounterUnsat, 32 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7687 SdHoareTripleChecker+Valid, 16121 SdHoareTripleChecker+Invalid, 7304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2973 IncrementalHoareTripleChecker+Valid, 4299 IncrementalHoareTripleChecker+Invalid, 32 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:06:33,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7687 Valid, 16121 Invalid, 7304 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2973 Valid, 4299 Invalid, 32 Unknown, 0 Unchecked, 103.1s Time] [2021-11-20 07:06:33,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58998 states. [2021-11-20 07:06:38,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58998 to 54759. [2021-11-20 07:06:38,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54759 states, 37440 states have (on average 1.3885149572649573) internal successors, (51986), 38626 states have internal predecessors, (51986), 15005 states have call successors, (15005), 2304 states have call predecessors, (15005), 2313 states have return successors, (15115), 14876 states have call predecessors, (15115), 15003 states have call successors, (15115) [2021-11-20 07:06:38,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54759 states to 54759 states and 82106 transitions. [2021-11-20 07:06:38,941 INFO L78 Accepts]: Start accepts. Automaton has 54759 states and 82106 transitions. Word has length 58 [2021-11-20 07:06:38,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:06:38,945 INFO L470 AbstractCegarLoop]: Abstraction has 54759 states and 82106 transitions. [2021-11-20 07:06:38,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 07:06:38,946 INFO L276 IsEmpty]: Start isEmpty. Operand 54759 states and 82106 transitions. [2021-11-20 07:06:38,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-20 07:06:38,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:06:38,958 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:06:38,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:06:38,959 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:06:38,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:06:38,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1306919861, now seen corresponding path program 1 times [2021-11-20 07:06:38,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:06:38,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263196336] [2021-11-20 07:06:38,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:06:38,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:06:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:06:39,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:06:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:06:39,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 07:06:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:06:39,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-20 07:06:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:06:39,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-20 07:06:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:06:39,839 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 07:06:39,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:06:39,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263196336] [2021-11-20 07:06:39,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263196336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:06:39,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:06:39,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:06:39,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665587790] [2021-11-20 07:06:39,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:06:39,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:06:39,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:06:39,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:06:39,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:06:39,845 INFO L87 Difference]: Start difference. First operand 54759 states and 82106 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 07:06:43,162 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:45,195 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:48,704 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:51,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:06:56,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:01,535 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:06,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:08,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:12,471 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:17,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:19,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:25,176 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:27,833 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:30,242 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:37,645 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:07:39,662 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:41,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:07:43,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:47,339 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:49,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:52,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:54,252 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:07:57,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:00,373 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:02,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:04,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:06,740 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:08,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:11,011 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:13,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:15,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:17,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:19,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:22,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:24,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:26,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:29,101 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:31,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:34,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:36,322 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:38,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:40,859 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 [] [2021-11-20 07:08:41,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:08:41,043 INFO L93 Difference]: Finished difference Result 171524 states and 261339 transitions. [2021-11-20 07:08:41,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:08:41,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 59 [2021-11-20 07:08:41,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:08:42,532 INFO L225 Difference]: With dead ends: 171524 [2021-11-20 07:08:42,532 INFO L226 Difference]: Without dead ends: 116770 [2021-11-20 07:08:43,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:08:43,060 INFO L933 BasicCegarLoop]: 8199 mSDtfsCounter, 6702 mSDsluCounter, 8601 mSDsCounter, 0 mSdLazyCounter, 4381 mSolverCounterSat, 2883 mSolverCounterUnsat, 39 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 111.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7644 SdHoareTripleChecker+Valid, 16800 SdHoareTripleChecker+Invalid, 7303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2883 IncrementalHoareTripleChecker+Valid, 4381 IncrementalHoareTripleChecker+Invalid, 39 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 116.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:08:43,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7644 Valid, 16800 Invalid, 7303 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2883 Valid, 4381 Invalid, 39 Unknown, 0 Unchecked, 116.5s Time] [2021-11-20 07:08:43,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116770 states. [2021-11-20 07:08:49,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116770 to 108335. [2021-11-20 07:08:49,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108335 states, 74038 states have (on average 1.3875307274642752) internal successors, (102730), 76410 states have internal predecessors, (102730), 29677 states have call successors, (29677), 4600 states have call predecessors, (29677), 4619 states have return successors, (29899), 29420 states have call predecessors, (29899), 29675 states have call successors, (29899) [2021-11-20 07:08:51,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108335 states to 108335 states and 162306 transitions. [2021-11-20 07:08:51,174 INFO L78 Accepts]: Start accepts. Automaton has 108335 states and 162306 transitions. Word has length 59 [2021-11-20 07:08:51,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:08:51,175 INFO L470 AbstractCegarLoop]: Abstraction has 108335 states and 162306 transitions. [2021-11-20 07:08:51,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 07:08:51,175 INFO L276 IsEmpty]: Start isEmpty. Operand 108335 states and 162306 transitions. [2021-11-20 07:08:51,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-20 07:08:51,187 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:08:51,187 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:08:51,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:08:51,187 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:08:51,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:08:51,188 INFO L85 PathProgramCache]: Analyzing trace with hash -2076365237, now seen corresponding path program 1 times [2021-11-20 07:08:51,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:08:51,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727460128] [2021-11-20 07:08:51,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:08:51,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:08:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:51,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:08:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:51,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:08:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:51,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 07:08:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:51,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:08:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:51,726 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 07:08:51,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:08:51,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727460128] [2021-11-20 07:08:51,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727460128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:08:51,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:08:51,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:08:51,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862691783] [2021-11-20 07:08:51,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:08:51,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:08:51,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:08:51,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:08:51,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:08:51,730 INFO L87 Difference]: Start difference. First operand 108335 states and 162306 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 07:08:55,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:08:59,878 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:01,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:03,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:08,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:11,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:14,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:20,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:28,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:31,512 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:34,676 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:36,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:40,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:43,368 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:46,589 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:52,658 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:56,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:09:58,570 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 []