./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.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_83642631-6764-4df9-b0b9-1822e6a71cbe/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83642631-6764-4df9-b0b9-1822e6a71cbe/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_83642631-6764-4df9-b0b9-1822e6a71cbe/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83642631-6764-4df9-b0b9-1822e6a71cbe/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83642631-6764-4df9-b0b9-1822e6a71cbe/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_83642631-6764-4df9-b0b9-1822e6a71cbe/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 c5e11c32abc44e06be1403f1da490e5e9ddc476b4dd1edb72148385c1e2a0b21 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:08:07,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:08:07,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:08:07,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:08:07,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:08:07,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:08:07,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:08:07,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:08:07,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:08:07,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:08:07,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:08:07,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:08:07,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:08:07,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:08:07,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:08:07,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:08:07,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:08:07,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:08:07,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:08:07,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:08:07,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:08:07,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:08:07,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:08:07,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:08:07,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:08:07,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:08:07,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:08:07,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:08:07,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:08:07,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:08:07,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:08:07,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:08:07,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:08:07,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:08:07,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:08:07,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:08:07,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:08:07,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:08:07,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:08:07,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:08:07,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:08:07,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83642631-6764-4df9-b0b9-1822e6a71cbe/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 07:08:07,663 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:08:07,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:08:07,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:08:07,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:08:07,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:08:07,665 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:08:07,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:08:07,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:08:07,667 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:08:07,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:08:07,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:08:07,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:08:07,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:08:07,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:08:07,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:08:07,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:08:07,669 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:08:07,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:08:07,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:08:07,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:08:07,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:08:07,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:08:07,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:08:07,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:08:07,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:08:07,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:08:07,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:08:07,671 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:08:07,672 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:08:07,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:08:07,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:08:07,672 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_83642631-6764-4df9-b0b9-1822e6a71cbe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83642631-6764-4df9-b0b9-1822e6a71cbe/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5e11c32abc44e06be1403f1da490e5e9ddc476b4dd1edb72148385c1e2a0b21 [2021-11-20 07:08:07,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:08:08,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:08:08,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:08:08,024 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:08:08,025 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:08:08,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83642631-6764-4df9-b0b9-1822e6a71cbe/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-11-20 07:08:08,149 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83642631-6764-4df9-b0b9-1822e6a71cbe/bin/uautomizer-DQz5hQGWxF/data/188b9b6ec/213a7eec7c374159a2b1573706e758c4/FLAG701b17339 [2021-11-20 07:08:09,282 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:08:09,283 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83642631-6764-4df9-b0b9-1822e6a71cbe/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-11-20 07:08:09,355 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83642631-6764-4df9-b0b9-1822e6a71cbe/bin/uautomizer-DQz5hQGWxF/data/188b9b6ec/213a7eec7c374159a2b1573706e758c4/FLAG701b17339 [2021-11-20 07:08:09,522 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83642631-6764-4df9-b0b9-1822e6a71cbe/bin/uautomizer-DQz5hQGWxF/data/188b9b6ec/213a7eec7c374159a2b1573706e758c4 [2021-11-20 07:08:09,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:08:09,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:08:09,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:08:09,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:08:09,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:08:09,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:08:09" (1/1) ... [2021-11-20 07:08:09,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dcb4f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:09, skipping insertion in model container [2021-11-20 07:08:09,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:08:09" (1/1) ... [2021-11-20 07:08:09,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:08:09,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:08:14,786 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_83642631-6764-4df9-b0b9-1822e6a71cbe/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.ko-entry_point.cil.out.i[382358,382371] [2021-11-20 07:08:15,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:08:15,139 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:08:15,646 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_83642631-6764-4df9-b0b9-1822e6a71cbe/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.ko-entry_point.cil.out.i[382358,382371] [2021-11-20 07:08:15,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:08:15,978 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:08:15,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:15 WrapperNode [2021-11-20 07:08:15,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:08:15,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:08:15,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:08:15,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:08:15,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:15" (1/1) ... [2021-11-20 07:08:16,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:15" (1/1) ... [2021-11-20 07:08:16,456 INFO L137 Inliner]: procedures = 664, calls = 4061, calls flagged for inlining = 272, calls inlined = 262, statements flattened = 9806 [2021-11-20 07:08:16,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:08:16,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:08:16,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:08:16,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:08:16,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:15" (1/1) ... [2021-11-20 07:08:16,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:15" (1/1) ... [2021-11-20 07:08:16,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:15" (1/1) ... [2021-11-20 07:08:16,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:15" (1/1) ... [2021-11-20 07:08:16,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:15" (1/1) ... [2021-11-20 07:08:16,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:15" (1/1) ... [2021-11-20 07:08:16,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:15" (1/1) ... [2021-11-20 07:08:16,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:08:16,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:08:16,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:08:16,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:08:16,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:15" (1/1) ... [2021-11-20 07:08:16,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:08:16,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83642631-6764-4df9-b0b9-1822e6a71cbe/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:08:16,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83642631-6764-4df9-b0b9-1822e6a71cbe/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:08:16,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83642631-6764-4df9-b0b9-1822e6a71cbe/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:08:16,913 INFO L130 BoogieDeclarations]: Found specification of procedure resize_cache_dev [2021-11-20 07:08:16,914 INFO L138 BoogieDeclarations]: Found implementation of procedure resize_cache_dev [2021-11-20 07:08:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure block_size_is_power_of_two [2021-11-20 07:08:16,914 INFO L138 BoogieDeclarations]: Found implementation of procedure block_size_is_power_of_two [2021-11-20 07:08:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-20 07:08:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-20 07:08:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_manager_destroy [2021-11-20 07:08:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_manager_destroy [2021-11-20 07:08:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2021-11-20 07:08:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2021-11-20 07:08:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_sm_root [2021-11-20 07:08:16,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_sm_root [2021-11-20 07:08:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure bio_writes_complete_block [2021-11-20 07:08:16,916 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_writes_complete_block [2021-11-20 07:08:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-20 07:08:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_pre_commit [2021-11-20 07:08:16,917 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_pre_commit [2021-11-20 07:08:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2021-11-20 07:08:16,917 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2021-11-20 07:08:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure cache_map [2021-11-20 07:08:16,917 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_map [2021-11-20 07:08:16,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 07:08:16,918 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 07:08:16,918 INFO L130 BoogieDeclarations]: Found specification of procedure process_migrations [2021-11-20 07:08:16,918 INFO L138 BoogieDeclarations]: Found implementation of procedure process_migrations [2021-11-20 07:08:16,918 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_origin_clear_discard [2021-11-20 07:08:16,918 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_origin_clear_discard [2021-11-20 07:08:16,919 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_checksum [2021-11-20 07:08:16,919 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_checksum [2021-11-20 07:08:16,919 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-20 07:08:16,919 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-20 07:08:16,919 INFO L130 BoogieDeclarations]: Found specification of procedure put_policy [2021-11-20 07:08:16,920 INFO L138 BoogieDeclarations]: Found implementation of procedure put_policy [2021-11-20 07:08:16,920 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_tick_bio_needed [2021-11-20 07:08:16,920 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_tick_bio_needed [2021-11-20 07:08:16,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 07:08:16,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 07:08:16,920 INFO L130 BoogieDeclarations]: Found specification of procedure update_flags [2021-11-20 07:08:16,921 INFO L138 BoogieDeclarations]: Found implementation of procedure update_flags [2021-11-20 07:08:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure calc_discard_block_range [2021-11-20 07:08:16,921 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_discard_block_range [2021-11-20 07:08:16,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2021-11-20 07:08:16,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2021-11-20 07:08:16,922 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release_no_holder [2021-11-20 07:08:16,922 INFO L130 BoogieDeclarations]: Found specification of procedure free_bitset [2021-11-20 07:08:16,922 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bitset [2021-11-20 07:08:16,922 INFO L130 BoogieDeclarations]: Found specification of procedure commit_if_needed [2021-11-20 07:08:16,923 INFO L138 BoogieDeclarations]: Found implementation of procedure commit_if_needed [2021-11-20 07:08:16,923 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-20 07:08:16,923 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-20 07:08:16,923 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-20 07:08:16,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-20 07:08:16,924 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data [2021-11-20 07:08:16,924 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data [2021-11-20 07:08:16,924 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_then_cache [2021-11-20 07:08:16,925 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_then_cache [2021-11-20 07:08:16,925 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-20 07:08:16,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-20 07:08:16,926 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_remove_mapping [2021-11-20 07:08:16,927 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_remove_mapping [2021-11-20 07:08:16,927 INFO L130 BoogieDeclarations]: Found specification of procedure dblock_to_oblock [2021-11-20 07:08:16,927 INFO L138 BoogieDeclarations]: Found implementation of procedure dblock_to_oblock [2021-11-20 07:08:16,927 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 07:08:16,927 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 07:08:16,927 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin [2021-11-20 07:08:16,928 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin [2021-11-20 07:08:16,928 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bitset [2021-11-20 07:08:16,928 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bitset [2021-11-20 07:08:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain_range [2021-11-20 07:08:16,929 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain_range [2021-11-20 07:08:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure from_cblock [2021-11-20 07:08:16,929 INFO L138 BoogieDeclarations]: Found implementation of procedure from_cblock [2021-11-20 07:08:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure writethrough_mode [2021-11-20 07:08:16,929 INFO L138 BoogieDeclarations]: Found implementation of procedure writethrough_mode [2021-11-20 07:08:16,930 INFO L130 BoogieDeclarations]: Found specification of procedure write_dirty_bitset [2021-11-20 07:08:16,930 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dirty_bitset [2021-11-20 07:08:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 07:08:16,931 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 07:08:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure writeback_mode [2021-11-20 07:08:16,931 INFO L138 BoogieDeclarations]: Found implementation of procedure writeback_mode [2021-11-20 07:08:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure cache_postsuspend [2021-11-20 07:08:16,932 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_postsuspend [2021-11-20 07:08:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_migration [2021-11-20 07:08:16,932 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_migration [2021-11-20 07:08:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure issue_copy_or_discard [2021-11-20 07:08:16,932 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_copy_or_discard [2021-11-20 07:08:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure cache_dtr [2021-11-20 07:08:16,933 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_dtr [2021-11-20 07:08:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-20 07:08:16,933 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-20 07:08:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-20 07:08:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_prison_cell [2021-11-20 07:08:16,934 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_prison_cell [2021-11-20 07:08:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_version [2021-11-20 07:08:16,934 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_version [2021-11-20 07:08:16,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 07:08:16,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 07:08:16,936 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 07:08:16,936 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 07:08:16,936 INFO L130 BoogieDeclarations]: Found specification of procedure __create_persistent_data_objects [2021-11-20 07:08:16,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_persistent_data_objects [2021-11-20 07:08:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:08:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data_size [2021-11-20 07:08:16,937 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data_size [2021-11-20 07:08:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_resize [2021-11-20 07:08:16,938 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_resize [2021-11-20 07:08:16,938 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 07:08:16,938 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 07:08:16,938 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_request [2021-11-20 07:08:16,938 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_request [2021-11-20 07:08:16,938 INFO L130 BoogieDeclarations]: Found specification of procedure pack_value [2021-11-20 07:08:16,939 INFO L138 BoogieDeclarations]: Found implementation of procedure pack_value [2021-11-20 07:08:16,939 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-20 07:08:16,939 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-20 07:08:16,939 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2021-11-20 07:08:16,940 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2021-11-20 07:08:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 07:08:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure clear_discard [2021-11-20 07:08:16,941 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_discard [2021-11-20 07:08:16,943 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_cell [2021-11-20 07:08:16,944 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_cell [2021-11-20 07:08:16,944 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 07:08:16,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 07:08:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure process_deferred_flush_bios [2021-11-20 07:08:16,947 INFO L138 BoogieDeclarations]: Found implementation of procedure process_deferred_flush_bios [2021-11-20 07:08:16,947 INFO L130 BoogieDeclarations]: Found specification of procedure cell_defer [2021-11-20 07:08:16,947 INFO L138 BoogieDeclarations]: Found implementation of procedure cell_defer [2021-11-20 07:08:16,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 07:08:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_commit [2021-11-20 07:08:16,954 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_commit [2021-11-20 07:08:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure sb_check [2021-11-20 07:08:16,955 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_check [2021-11-20 07:08:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_destroy [2021-11-20 07:08:16,955 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_destroy [2021-11-20 07:08:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure cache_device_name [2021-11-20 07:08:16,955 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_device_name [2021-11-20 07:08:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:08:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure get_policy_once [2021-11-20 07:08:16,956 INFO L138 BoogieDeclarations]: Found implementation of procedure get_policy_once [2021-11-20 07:08:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure issue [2021-11-20 07:08:16,956 INFO L138 BoogieDeclarations]: Found implementation of procedure issue [2021-11-20 07:08:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 07:08:16,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 07:08:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure inc_and_issue [2021-11-20 07:08:16,956 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_and_issue [2021-11-20 07:08:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure write_discard_bitset [2021-11-20 07:08:16,957 INFO L138 BoogieDeclarations]: Found implementation of procedure write_discard_bitset [2021-11-20 07:08:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure sync_metadata [2021-11-20 07:08:16,957 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_metadata [2021-11-20 07:08:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-20 07:08:16,957 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-20 07:08:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard_range [2021-11-20 07:08:16,958 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard_range [2021-11-20 07:08:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure policy_unchanged [2021-11-20 07:08:16,958 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_unchanged [2021-11-20 07:08:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-20 07:08:16,958 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-20 07:08:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure set_config_value [2021-11-20 07:08:16,958 INFO L138 BoogieDeclarations]: Found implementation of procedure set_config_value [2021-11-20 07:08:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure stop_worker [2021-11-20 07:08:16,959 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_worker [2021-11-20 07:08:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_19 [2021-11-20 07:08:16,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_19 [2021-11-20 07:08:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-20 07:08:16,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-20 07:08:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure policy_force_mapping [2021-11-20 07:08:16,960 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_force_mapping [2021-11-20 07:08:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_clear_discard [2021-11-20 07:08:16,960 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_clear_discard [2021-11-20 07:08:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure __save_sm_root [2021-11-20 07:08:16,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __save_sm_root [2021-11-20 07:08:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:08:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-11-20 07:08:16,961 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-11-20 07:08:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure blocks_are_unmapped_or_clean [2021-11-20 07:08:16,961 INFO L138 BoogieDeclarations]: Found implementation of procedure blocks_are_unmapped_or_clean [2021-11-20 07:08:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-20 07:08:16,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-20 07:08:16,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:08:16,962 INFO L130 BoogieDeclarations]: Found specification of procedure do_worker [2021-11-20 07:08:16,962 INFO L138 BoogieDeclarations]: Found implementation of procedure do_worker [2021-11-20 07:08:16,962 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-11-20 07:08:16,962 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-11-20 07:08:16,962 INFO L130 BoogieDeclarations]: Found specification of procedure build_key [2021-11-20 07:08:16,962 INFO L138 BoogieDeclarations]: Found implementation of procedure build_key [2021-11-20 07:08:16,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 07:08:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 07:08:16,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 07:08:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure write_hints [2021-11-20 07:08:16,963 INFO L138 BoogieDeclarations]: Found implementation of procedure write_hints [2021-11-20 07:08:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-11-20 07:08:16,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-11-20 07:08:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure __find_policy [2021-11-20 07:08:16,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_policy [2021-11-20 07:08:16,964 INFO L130 BoogieDeclarations]: Found specification of procedure policy_tick [2021-11-20 07:08:16,964 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_tick [2021-11-20 07:08:16,964 INFO L130 BoogieDeclarations]: Found specification of procedure cache_resume [2021-11-20 07:08:16,964 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_resume [2021-11-20 07:08:16,964 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-11-20 07:08:16,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-11-20 07:08:16,965 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_close [2021-11-20 07:08:16,965 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_close [2021-11-20 07:08:16,965 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_hint_size [2021-11-20 07:08:16,965 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_hint_size [2021-11-20 07:08:16,965 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-20 07:08:16,965 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-20 07:08:16,965 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_pop [2021-11-20 07:08:16,966 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_pop [2021-11-20 07:08:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure free_migration [2021-11-20 07:08:16,966 INFO L138 BoogieDeclarations]: Found implementation of procedure free_migration [2021-11-20 07:08:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-20 07:08:16,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-20 07:08:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure passthrough_mode [2021-11-20 07:08:16,966 INFO L138 BoogieDeclarations]: Found implementation of procedure passthrough_mode [2021-11-20 07:08:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure get_cache_mode [2021-11-20 07:08:17,044 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cache_mode [2021-11-20 07:08:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure to_cblock [2021-11-20 07:08:17,044 INFO L138 BoogieDeclarations]: Found implementation of procedure to_cblock [2021-11-20 07:08:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure cache_iterate_devices [2021-11-20 07:08:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_iterate_devices [2021-11-20 07:08:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure to_oblock [2021-11-20 07:08:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure to_oblock [2021-11-20 07:08:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-11-20 07:08:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-11-20 07:08:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure block_div [2021-11-20 07:08:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure block_div [2021-11-20 07:08:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-20 07:08:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-20 07:08:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 07:08:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 07:08:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure oblocks_per_dblock [2021-11-20 07:08:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure oblocks_per_dblock [2021-11-20 07:08:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure policy_set_dirty [2021-11-20 07:08:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_set_dirty [2021-11-20 07:08:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_size [2021-11-20 07:08:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_size [2021-11-20 07:08:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure cache_message [2021-11-20 07:08:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_message [2021-11-20 07:08:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-20 07:08:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-20 07:08:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure inc_ds [2021-11-20 07:08:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_ds [2021-11-20 07:08:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:08:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:08:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure inc_hit_counter [2021-11-20 07:08:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_hit_counter [2021-11-20 07:08:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-20 07:08:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-20 07:08:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_visit_release [2021-11-20 07:08:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cell_visit_release [2021-11-20 07:08:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure commit [2021-11-20 07:08:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure commit [2021-11-20 07:08:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-11-20 07:08:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-11-20 07:08:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure cache_io_hints [2021-11-20 07:08:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_io_hints [2021-11-20 07:08:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure cache_end_io [2021-11-20 07:08:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_end_io [2021-11-20 07:08:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_begin [2021-11-20 07:08:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_begin [2021-11-20 07:08:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 07:08:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 07:08:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 07:08:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 07:08:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_abort [2021-11-20 07:08:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_abort [2021-11-20 07:08:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure read_superblock_fields [2021-11-20 07:08:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure read_superblock_fields [2021-11-20 07:08:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_min [2021-11-20 07:08:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_min [2021-11-20 07:08:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure inc_miss_counter [2021-11-20 07:08:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_miss_counter [2021-11-20 07:08:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure migration_failure [2021-11-20 07:08:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_failure [2021-11-20 07:08:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure dm_hook_bio [2021-11-20 07:08:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_hook_bio [2021-11-20 07:08:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_set_value [2021-11-20 07:08:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_set_value [2021-11-20 07:08:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure free_io_migration [2021-11-20 07:08:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure free_io_migration [2021-11-20 07:08:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure do_waker [2021-11-20 07:08:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure do_waker [2021-11-20 07:08:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_18 [2021-11-20 07:08:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_18 [2021-11-20 07:08:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure get_dev_size [2021-11-20 07:08:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dev_size [2021-11-20 07:08:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure is_discarded_oblock [2021-11-20 07:08:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure is_discarded_oblock [2021-11-20 07:08:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bitset [2021-11-20 07:08:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bitset [2021-11-20 07:08:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 07:08:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 07:08:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure __setup_mapping_info [2021-11-20 07:08:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __setup_mapping_info [2021-11-20 07:08:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 07:08:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 07:08:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-20 07:08:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-20 07:08:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure bitset_size_in_bytes [2021-11-20 07:08:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure bitset_size_in_bytes [2021-11-20 07:08:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-20 07:08:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-20 07:08:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 07:08:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 07:08:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_is_read_only [2021-11-20 07:08:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_is_read_only [2021-11-20 07:08:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 07:08:17,057 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 07:08:17,057 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_location [2021-11-20 07:08:17,057 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_location [2021-11-20 07:08:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg_group [2021-11-20 07:08:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg_group [2021-11-20 07:08:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dirty [2021-11-20 07:08:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dirty [2021-11-20 07:08:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-20 07:08:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-20 07:08:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure dm_kcopyd_copy [2021-11-20 07:08:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_kcopyd_copy [2021-11-20 07:08:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-20 07:08:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-20 07:08:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure quiesce_migration [2021-11-20 07:08:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure quiesce_migration [2021-11-20 07:08:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2021-11-20 07:08:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2021-11-20 07:08:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_opt [2021-11-20 07:08:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_opt [2021-11-20 07:08:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2021-11-20 07:08:17,059 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2021-11-20 07:08:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-20 07:08:17,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-20 07:08:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:08:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 07:08:17,059 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 07:08:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-11-20 07:08:17,059 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-11-20 07:08:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure free_prison_cell [2021-11-20 07:08:17,059 INFO L138 BoogieDeclarations]: Found implementation of procedure free_prison_cell [2021-11-20 07:08:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 07:08:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure __format_metadata [2021-11-20 07:08:17,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __format_metadata [2021-11-20 07:08:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-11-20 07:08:17,059 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-11-20 07:08:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure discard_or_flush [2021-11-20 07:08:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure discard_or_flush [2021-11-20 07:08:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_data_structs [2021-11-20 07:08:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_data_structs [2021-11-20 07:08:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-11-20 07:08:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-11-20 07:08:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure unpack_value [2021-11-20 07:08:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure unpack_value [2021-11-20 07:08:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_destroy [2021-11-20 07:08:17,061 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_destroy [2021-11-20 07:08:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_read_lock [2021-11-20 07:08:17,061 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_read_lock [2021-11-20 07:08:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 07:08:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_data [2021-11-20 07:08:17,061 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_data [2021-11-20 07:08:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure from_dblock [2021-11-20 07:08:17,062 INFO L138 BoogieDeclarations]: Found implementation of procedure from_dblock [2021-11-20 07:08:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 07:08:17,062 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 07:08:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-20 07:08:17,062 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-20 07:08:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-20 07:08:17,062 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-20 07:08:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure cache_bvec_merge [2021-11-20 07:08:17,063 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_bvec_merge [2021-11-20 07:08:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-20 07:08:17,063 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-20 07:08:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure is_dirty [2021-11-20 07:08:17,063 INFO L138 BoogieDeclarations]: Found implementation of procedure is_dirty [2021-11-20 07:08:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure __open_or_format_metadata [2021-11-20 07:08:17,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __open_or_format_metadata [2021-11-20 07:08:17,064 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2021-11-20 07:08:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2021-11-20 07:08:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-11-20 07:08:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-11-20 07:08:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_get_value [2021-11-20 07:08:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_get_value [2021-11-20 07:08:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_empty [2021-11-20 07:08:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_empty [2021-11-20 07:08:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure set_dirty [2021-11-20 07:08:17,066 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dirty [2021-11-20 07:08:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2021-11-20 07:08:17,067 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2021-11-20 07:08:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_walk [2021-11-20 07:08:17,067 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_walk [2021-11-20 07:08:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 07:08:17,068 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 07:08:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_cache [2021-11-20 07:08:17,068 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_cache [2021-11-20 07:08:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure oblock_to_dblock [2021-11-20 07:08:17,068 INFO L138 BoogieDeclarations]: Found implementation of procedure oblock_to_dblock [2021-11-20 07:08:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure wake_worker [2021-11-20 07:08:17,068 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_worker [2021-11-20 07:08:17,069 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_free_structs [2021-11-20 07:08:17,069 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_free_structs [2021-11-20 07:08:17,069 INFO L130 BoogieDeclarations]: Found specification of procedure dm_disk_bitset_init [2021-11-20 07:08:17,069 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_disk_bitset_init [2021-11-20 07:08:17,069 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard [2021-11-20 07:08:17,069 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard [2021-11-20 07:08:17,069 INFO L130 BoogieDeclarations]: Found specification of procedure get_bio_block [2021-11-20 07:08:17,070 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bio_block [2021-11-20 07:08:17,070 INFO L130 BoogieDeclarations]: Found specification of procedure destroy [2021-11-20 07:08:17,070 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy [2021-11-20 07:08:17,070 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_read_lock [2021-11-20 07:08:17,070 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_read_lock [2021-11-20 07:08:17,070 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 07:08:17,070 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 07:08:17,071 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release [2021-11-20 07:08:17,071 INFO L130 BoogieDeclarations]: Found specification of procedure is_quiescing [2021-11-20 07:08:17,071 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quiescing [2021-11-20 07:08:17,071 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 07:08:17,071 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 07:08:17,071 INFO L130 BoogieDeclarations]: Found specification of procedure abort_transaction [2021-11-20 07:08:17,071 INFO L138 BoogieDeclarations]: Found implementation of procedure abort_transaction [2021-11-20 07:08:17,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:08:17,072 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_mode [2021-11-20 07:08:17,072 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_mode [2021-11-20 07:08:17,072 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_info_init [2021-11-20 07:08:17,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_info_init [2021-11-20 07:08:17,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 07:08:17,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 07:08:17,072 INFO L130 BoogieDeclarations]: Found specification of procedure from_oblock [2021-11-20 07:08:17,073 INFO L138 BoogieDeclarations]: Found implementation of procedure from_oblock [2021-11-20 07:08:17,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-20 07:08:17,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-20 07:08:17,073 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_lock [2021-11-20 07:08:17,073 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_lock [2021-11-20 07:08:17,073 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_copy [2021-11-20 07:08:17,073 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_copy [2021-11-20 07:08:17,074 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-20 07:08:17,074 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-20 07:08:17,074 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_name [2021-11-20 07:08:17,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_name [2021-11-20 07:08:17,074 INFO L130 BoogieDeclarations]: Found specification of procedure spare_migration_bandwidth [2021-11-20 07:08:17,074 INFO L138 BoogieDeclarations]: Found implementation of procedure spare_migration_bandwidth [2021-11-20 07:08:17,074 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_add [2021-11-20 07:08:17,074 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_add [2021-11-20 07:08:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_cache_dirty [2021-11-20 07:08:17,075 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_cache_dirty [2021-11-20 07:08:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_put_cell [2021-11-20 07:08:17,075 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_put_cell [2021-11-20 07:08:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-11-20 07:08:17,075 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-11-20 07:08:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure defer_bio [2021-11-20 07:08:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure defer_bio [2021-11-20 07:08:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_operation_failed [2021-11-20 07:08:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_operation_failed [2021-11-20 07:08:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_table_lock [2021-11-20 07:08:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_table_lock [2021-11-20 07:08:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-20 07:08:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-20 07:08:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure dm_shift_arg [2021-11-20 07:08:17,077 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_shift_arg [2021-11-20 07:08:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_requests [2021-11-20 07:08:17,077 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_requests [2021-11-20 07:08:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_table_lock [2021-11-20 07:08:17,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_table_lock [2021-11-20 07:08:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-20 07:08:17,077 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-20 07:08:17,078 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2021-11-20 07:08:17,078 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2021-11-20 07:08:17,078 INFO L130 BoogieDeclarations]: Found specification of procedure policy_remove_mapping [2021-11-20 07:08:17,078 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_remove_mapping [2021-11-20 07:08:17,078 INFO L130 BoogieDeclarations]: Found specification of procedure to_dblock [2021-11-20 07:08:17,078 INFO L138 BoogieDeclarations]: Found implementation of procedure to_dblock [2021-11-20 07:08:17,078 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-11-20 07:08:17,079 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-11-20 07:08:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain [2021-11-20 07:08:17,079 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain [2021-11-20 07:08:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-11-20 07:08:17,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-11-20 07:08:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure at_least_one_arg [2021-11-20 07:08:17,079 INFO L138 BoogieDeclarations]: Found implementation of procedure at_least_one_arg [2021-11-20 07:08:17,080 INFO L130 BoogieDeclarations]: Found specification of procedure __queue_quiesced_migration [2021-11-20 07:08:17,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __queue_quiesced_migration [2021-11-20 07:08:17,080 INFO L130 BoogieDeclarations]: Found specification of procedure inc_io_migrations [2021-11-20 07:08:17,080 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_io_migrations [2021-11-20 07:08:17,080 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2021-11-20 07:08:17,080 INFO L130 BoogieDeclarations]: Found specification of procedure policy_map [2021-11-20 07:08:17,080 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_map [2021-11-20 07:08:17,080 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bio_prison_free_cell [2021-11-20 07:08:17,081 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bio_prison_free_cell [2021-11-20 07:08:17,081 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_destroy [2021-11-20 07:08:17,081 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_destroy [2021-11-20 07:08:17,081 INFO L130 BoogieDeclarations]: Found specification of procedure complete_migration [2021-11-20 07:08:17,081 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_migration [2021-11-20 07:08:17,081 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 07:08:17,081 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 07:08:17,082 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 07:08:17,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 07:08:17,085 INFO L130 BoogieDeclarations]: Found specification of procedure __destroy_persistent_data_objects [2021-11-20 07:08:17,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __destroy_persistent_data_objects [2021-11-20 07:08:17,086 INFO L130 BoogieDeclarations]: Found specification of procedure lookup [2021-11-20 07:08:17,086 INFO L138 BoogieDeclarations]: Found implementation of procedure lookup [2021-11-20 07:08:17,086 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_request [2021-11-20 07:08:17,086 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_request [2021-11-20 07:08:17,086 INFO L130 BoogieDeclarations]: Found specification of procedure migration_success_pre_commit [2021-11-20 07:08:17,087 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_success_pre_commit [2021-11-20 07:08:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:08:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure cache_status [2021-11-20 07:08:17,087 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_status [2021-11-20 07:08:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_unlock [2021-11-20 07:08:17,087 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_unlock [2021-11-20 07:08:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2021-11-20 07:08:17,087 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2021-11-20 07:08:17,088 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-20 07:08:17,088 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2021-11-20 07:08:17,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2021-11-20 07:08:17,088 INFO L130 BoogieDeclarations]: Found specification of procedure process_cell [2021-11-20 07:08:17,089 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cell [2021-11-20 07:08:18,455 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:08:18,463 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:08:19,278 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 07:08:31,752 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:08:31,782 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:08:31,783 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:08:31,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:08:31 BoogieIcfgContainer [2021-11-20 07:08:31,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:08:31,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:08:31,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:08:31,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:08:31,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:08:09" (1/3) ... [2021-11-20 07:08:31,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c8bfd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:08:31, skipping insertion in model container [2021-11-20 07:08:31,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:08:15" (2/3) ... [2021-11-20 07:08:31,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c8bfd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:08:31, skipping insertion in model container [2021-11-20 07:08:31,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:08:31" (3/3) ... [2021-11-20 07:08:31,798 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-11-20 07:08:31,804 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:08:31,804 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:08:31,869 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:08:31,875 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 07:08:31,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:08:31,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 3883 states, 2503 states have (on average 1.2744706352377146) internal successors, (3190), 2589 states have internal predecessors, (3190), 1134 states have call successors, (1134), 245 states have call predecessors, (1134), 244 states have return successors, (1128), 1099 states have call predecessors, (1128), 1128 states have call successors, (1128) [2021-11-20 07:08:31,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-20 07:08:31,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:08:31,987 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:08:31,988 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:08:31,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:08:31,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1010070639, now seen corresponding path program 1 times [2021-11-20 07:08:32,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:08:32,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047687184] [2021-11-20 07:08:32,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:08:32,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:08:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:32,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:08:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:32,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:32,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:32,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:08:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:32,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:32,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:32,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:08:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:32,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:32,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:32,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:08:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:32,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:32,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:32,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:08:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:08:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:08:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:08:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:08:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:08:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:08:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:08:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:08:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:08:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:08:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:08:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:08:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:33,585 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-20 07:08:33,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:08:33,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047687184] [2021-11-20 07:08:33,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047687184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:08:33,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:08:33,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:08:33,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111807502] [2021-11-20 07:08:33,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:08:33,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:08:33,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:08:33,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:08:33,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:08:33,656 INFO L87 Difference]: Start difference. First operand has 3883 states, 2503 states have (on average 1.2744706352377146) internal successors, (3190), 2589 states have internal predecessors, (3190), 1134 states have call successors, (1134), 245 states have call predecessors, (1134), 244 states have return successors, (1128), 1099 states have call predecessors, (1128), 1128 states have call successors, (1128) Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:08:48,770 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 07:08:50,139 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 07:08:51,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:08:51,138 INFO L93 Difference]: Finished difference Result 8452 states and 12355 transitions. [2021-11-20 07:08:51,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:08:51,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 253 [2021-11-20 07:08:51,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:08:51,248 INFO L225 Difference]: With dead ends: 8452 [2021-11-20 07:08:51,249 INFO L226 Difference]: Without dead ends: 4553 [2021-11-20 07:08:51,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:08:51,310 INFO L933 BasicCegarLoop]: 4927 mSDtfsCounter, 4301 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 2285 mSolverCounterSat, 5068 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4410 SdHoareTripleChecker+Valid, 7101 SdHoareTripleChecker+Invalid, 7354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5068 IncrementalHoareTripleChecker+Valid, 2285 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:08:51,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4410 Valid, 7101 Invalid, 7354 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5068 Valid, 2285 Invalid, 1 Unknown, 0 Unchecked, 16.6s Time] [2021-11-20 07:08:51,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4553 states. [2021-11-20 07:08:51,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4553 to 3862. [2021-11-20 07:08:51,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 2490 states have (on average 1.2690763052208835) internal successors, (3160), 2568 states have internal predecessors, (3160), 1128 states have call successors, (1128), 244 states have call predecessors, (1128), 243 states have return successors, (1122), 1093 states have call predecessors, (1122), 1122 states have call successors, (1122) [2021-11-20 07:08:51,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 5410 transitions. [2021-11-20 07:08:51,731 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 5410 transitions. Word has length 253 [2021-11-20 07:08:51,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:08:51,734 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 5410 transitions. [2021-11-20 07:08:51,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:08:51,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 5410 transitions. [2021-11-20 07:08:51,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-20 07:08:51,751 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:08:51,753 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:08:51,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:08:51,754 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:08:51,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:08:51,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1808246337, now seen corresponding path program 1 times [2021-11-20 07:08:51,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:08:51,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98471703] [2021-11-20 07:08:51,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:08:51,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:08:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:08:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:08:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:08:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:08:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:08:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:08:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:08:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:08:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:08:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:08:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:08:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:08:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:08:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:08:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:08:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:08:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:08:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:08:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:08:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:08:52,770 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-20 07:08:52,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:08:52,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98471703] [2021-11-20 07:08:52,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98471703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:08:52,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:08:52,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:08:52,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714767241] [2021-11-20 07:08:52,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:08:52,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:08:52,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:08:52,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:08:52,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:08:52,782 INFO L87 Difference]: Start difference. First operand 3862 states and 5410 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:08:56,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:07,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:09,445 WARN L515 Checker$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 07:09:11,511 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 07:09:11,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:09:11,955 INFO L93 Difference]: Finished difference Result 4555 states and 6593 transitions. [2021-11-20 07:09:11,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:09:11,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 253 [2021-11-20 07:09:11,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:09:12,012 INFO L225 Difference]: With dead ends: 4555 [2021-11-20 07:09:12,012 INFO L226 Difference]: Without dead ends: 4552 [2021-11-20 07:09:12,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:09:12,018 INFO L933 BasicCegarLoop]: 4828 mSDtfsCounter, 8981 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 6148 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9625 SdHoareTripleChecker+Valid, 6981 SdHoareTripleChecker+Invalid, 8501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6148 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:09:12,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9625 Valid, 6981 Invalid, 8501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6148 Valid, 2351 Invalid, 2 Unknown, 0 Unchecked, 18.5s Time] [2021-11-20 07:09:12,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4552 states. [2021-11-20 07:09:12,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4552 to 3861. [2021-11-20 07:09:12,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3861 states, 2490 states have (on average 1.2686746987951807) internal successors, (3159), 2567 states have internal predecessors, (3159), 1127 states have call successors, (1127), 244 states have call predecessors, (1127), 243 states have return successors, (1122), 1093 states have call predecessors, (1122), 1122 states have call successors, (1122) [2021-11-20 07:09:12,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3861 states to 3861 states and 5408 transitions. [2021-11-20 07:09:12,347 INFO L78 Accepts]: Start accepts. Automaton has 3861 states and 5408 transitions. Word has length 253 [2021-11-20 07:09:12,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:09:12,349 INFO L470 AbstractCegarLoop]: Abstraction has 3861 states and 5408 transitions. [2021-11-20 07:09:12,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:09:12,349 INFO L276 IsEmpty]: Start isEmpty. Operand 3861 states and 5408 transitions. [2021-11-20 07:09:12,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-20 07:09:12,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:09:12,356 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:09:12,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:09:12,357 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:09:12,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:09:12,358 INFO L85 PathProgramCache]: Analyzing trace with hash -223027263, now seen corresponding path program 1 times [2021-11-20 07:09:12,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:09:12,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319768481] [2021-11-20 07:09:12,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:09:12,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:09:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:09:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:09:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:09:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:09:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:09:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:09:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:09:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:09:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:09:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:09:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:12,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:09:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:09:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:09:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:09:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:09:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:09:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:09:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:13,192 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-20 07:09:13,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:09:13,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319768481] [2021-11-20 07:09:13,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319768481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:09:13,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:09:13,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:09:13,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279065622] [2021-11-20 07:09:13,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:09:13,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:09:13,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:09:13,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:09:13,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:09:13,198 INFO L87 Difference]: Start difference. First operand 3861 states and 5408 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:09:17,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:23,176 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:32,485 WARN L515 Checker$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 07:09:33,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:35,122 WARN L515 Checker$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 07:09:37,105 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:37,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:09:37,598 INFO L93 Difference]: Finished difference Result 4554 states and 6591 transitions. [2021-11-20 07:09:37,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:09:37,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 254 [2021-11-20 07:09:37,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:09:37,644 INFO L225 Difference]: With dead ends: 4554 [2021-11-20 07:09:37,645 INFO L226 Difference]: Without dead ends: 4551 [2021-11-20 07:09:37,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:09:37,649 INFO L933 BasicCegarLoop]: 4821 mSDtfsCounter, 7810 mSDsluCounter, 3710 mSDsCounter, 0 mSdLazyCounter, 3645 mSolverCounterSat, 4577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8457 SdHoareTripleChecker+Valid, 8531 SdHoareTripleChecker+Invalid, 8222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4577 IncrementalHoareTripleChecker+Valid, 3645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2021-11-20 07:09:37,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8457 Valid, 8531 Invalid, 8222 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4577 Valid, 3645 Invalid, 0 Unknown, 0 Unchecked, 23.9s Time] [2021-11-20 07:09:37,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4551 states. [2021-11-20 07:09:37,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4551 to 3860. [2021-11-20 07:09:37,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3860 states, 2490 states have (on average 1.2682730923694778) internal successors, (3158), 2566 states have internal predecessors, (3158), 1126 states have call successors, (1126), 244 states have call predecessors, (1126), 243 states have return successors, (1122), 1093 states have call predecessors, (1122), 1122 states have call successors, (1122) [2021-11-20 07:09:37,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3860 states to 3860 states and 5406 transitions. [2021-11-20 07:09:37,959 INFO L78 Accepts]: Start accepts. Automaton has 3860 states and 5406 transitions. Word has length 254 [2021-11-20 07:09:37,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:09:37,962 INFO L470 AbstractCegarLoop]: Abstraction has 3860 states and 5406 transitions. [2021-11-20 07:09:37,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:09:37,963 INFO L276 IsEmpty]: Start isEmpty. Operand 3860 states and 5406 transitions. [2021-11-20 07:09:37,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-11-20 07:09:37,969 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:09:37,970 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:09:37,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:09:37,970 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:09:37,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:09:37,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1674128642, now seen corresponding path program 1 times [2021-11-20 07:09:37,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:09:37,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724979345] [2021-11-20 07:09:37,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:09:37,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:09:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:09:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:09:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:09:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:09:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:09:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:09:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:09:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:09:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:09:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:09:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:09:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:09:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:09:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:09:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:09:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:09:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:09:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:09:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:09:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:38,792 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-20 07:09:38,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:09:38,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724979345] [2021-11-20 07:09:38,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724979345] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:09:38,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:09:38,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:09:38,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899196504] [2021-11-20 07:09:38,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:09:38,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:09:38,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:09:38,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:09:38,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:09:38,796 INFO L87 Difference]: Start difference. First operand 3860 states and 5406 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:09:43,554 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:47,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:09:49,899 WARN L515 Checker$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 07:09:52,159 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:10:02,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:10:03,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:10:03,862 INFO L93 Difference]: Finished difference Result 4553 states and 6589 transitions. [2021-11-20 07:10:03,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:10:03,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 255 [2021-11-20 07:10:03,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:10:03,902 INFO L225 Difference]: With dead ends: 4553 [2021-11-20 07:10:03,902 INFO L226 Difference]: Without dead ends: 4550 [2021-11-20 07:10:03,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:10:03,907 INFO L933 BasicCegarLoop]: 4838 mSDtfsCounter, 7419 mSDsluCounter, 3936 mSDsCounter, 0 mSdLazyCounter, 3660 mSolverCounterSat, 4373 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8052 SdHoareTripleChecker+Valid, 8774 SdHoareTripleChecker+Invalid, 8035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4373 IncrementalHoareTripleChecker+Valid, 3660 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:10:03,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8052 Valid, 8774 Invalid, 8035 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4373 Valid, 3660 Invalid, 2 Unknown, 0 Unchecked, 24.6s Time] [2021-11-20 07:10:03,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2021-11-20 07:10:04,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 3859. [2021-11-20 07:10:04,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3859 states, 2490 states have (on average 1.2678714859437752) internal successors, (3157), 2565 states have internal predecessors, (3157), 1125 states have call successors, (1125), 244 states have call predecessors, (1125), 243 states have return successors, (1122), 1093 states have call predecessors, (1122), 1122 states have call successors, (1122) [2021-11-20 07:10:04,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 5404 transitions. [2021-11-20 07:10:04,191 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 5404 transitions. Word has length 255 [2021-11-20 07:10:04,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:10:04,192 INFO L470 AbstractCegarLoop]: Abstraction has 3859 states and 5404 transitions. [2021-11-20 07:10:04,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:10:04,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 5404 transitions. [2021-11-20 07:10:04,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-11-20 07:10:04,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:10:04,198 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:10:04,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:10:04,198 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:10:04,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:10:04,198 INFO L85 PathProgramCache]: Analyzing trace with hash 356424420, now seen corresponding path program 1 times [2021-11-20 07:10:04,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:10:04,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117413482] [2021-11-20 07:10:04,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:10:04,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:10:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:10:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:10:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:10:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:10:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:10:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:10:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:10:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:10:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:10:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:10:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:10:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:10:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:10:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:10:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:10:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:10:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:10:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-20 07:10:04,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:10:04,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117413482] [2021-11-20 07:10:04,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117413482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:10:04,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:10:04,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:10:04,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434219621] [2021-11-20 07:10:04,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:10:04,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:10:04,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:10:04,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:10:04,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:10:04,802 INFO L87 Difference]: Start difference. First operand 3859 states and 5404 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:10:11,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:10:15,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:10:27,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:10:29,303 WARN L515 Checker$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 07:10:31,326 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 07:10:34,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:10:34,148 INFO L93 Difference]: Finished difference Result 4563 states and 6596 transitions. [2021-11-20 07:10:34,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:10:34,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 256 [2021-11-20 07:10:34,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:10:34,238 INFO L225 Difference]: With dead ends: 4563 [2021-11-20 07:10:34,239 INFO L226 Difference]: Without dead ends: 4550 [2021-11-20 07:10:34,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:10:34,244 INFO L933 BasicCegarLoop]: 4838 mSDtfsCounter, 7419 mSDsluCounter, 5508 mSDsCounter, 0 mSdLazyCounter, 4969 mSolverCounterSat, 4398 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8021 SdHoareTripleChecker+Valid, 10346 SdHoareTripleChecker+Invalid, 9369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4398 IncrementalHoareTripleChecker+Valid, 4969 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time [2021-11-20 07:10:34,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8021 Valid, 10346 Invalid, 9369 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4398 Valid, 4969 Invalid, 2 Unknown, 0 Unchecked, 28.9s Time] [2021-11-20 07:10:34,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2021-11-20 07:10:34,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 3859. [2021-11-20 07:10:34,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3859 states, 2489 states have (on average 1.2667738047408599) internal successors, (3153), 2562 states have internal predecessors, (3153), 1123 states have call successors, (1123), 247 states have call predecessors, (1123), 246 states have return successors, (1122), 1093 states have call predecessors, (1122), 1122 states have call successors, (1122) [2021-11-20 07:10:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 5398 transitions. [2021-11-20 07:10:34,497 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 5398 transitions. Word has length 256 [2021-11-20 07:10:34,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:10:34,498 INFO L470 AbstractCegarLoop]: Abstraction has 3859 states and 5398 transitions. [2021-11-20 07:10:34,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:10:34,498 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 5398 transitions. [2021-11-20 07:10:34,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2021-11-20 07:10:34,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:10:34,510 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:10:34,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:10:34,510 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:10:34,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:10:34,511 INFO L85 PathProgramCache]: Analyzing trace with hash -126581329, now seen corresponding path program 1 times [2021-11-20 07:10:34,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:10:34,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755219482] [2021-11-20 07:10:34,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:10:34,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:10:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:10:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:10:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:10:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:10:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:10:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:10:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:10:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:10:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:10:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:10:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:10:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:10:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:10:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:10:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:34,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:35,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:10:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:35,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:35,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:10:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:35,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:35,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:10:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:35,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:35,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:10:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:35,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:10:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:35,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-20 07:10:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:35,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-11-20 07:10:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:35,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-20 07:10:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:10:35,111 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-20 07:10:35,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:10:35,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755219482] [2021-11-20 07:10:35,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755219482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:10:35,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:10:35,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:10:35,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257838856] [2021-11-20 07:10:35,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:10:35,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:10:35,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:10:35,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:10:35,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:10:35,115 INFO L87 Difference]: Start difference. First operand 3859 states and 5398 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-20 07:10:39,404 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 07:10:49,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:11:07,212 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:11:09,387 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:11:11,408 WARN L515 Checker$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 07:11:13,247 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:11:14,580 WARN L515 Checker$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 07:11:16,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:11:20,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:11:20,037 INFO L93 Difference]: Finished difference Result 12793 states and 18484 transitions. [2021-11-20 07:11:20,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 07:11:20,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 288 [2021-11-20 07:11:20,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:11:20,098 INFO L225 Difference]: With dead ends: 12793 [2021-11-20 07:11:20,098 INFO L226 Difference]: Without dead ends: 8973 [2021-11-20 07:11:20,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-20 07:11:20,126 INFO L933 BasicCegarLoop]: 5321 mSDtfsCounter, 12299 mSDsluCounter, 7757 mSDsCounter, 0 mSdLazyCounter, 12571 mSolverCounterSat, 12125 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13094 SdHoareTripleChecker+Valid, 13078 SdHoareTripleChecker+Invalid, 24698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12125 IncrementalHoareTripleChecker+Valid, 12571 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:11:20,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13094 Valid, 13078 Invalid, 24698 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12125 Valid, 12571 Invalid, 2 Unknown, 0 Unchecked, 43.8s Time] [2021-11-20 07:11:20,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8973 states. [2021-11-20 07:11:20,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8973 to 6577. [2021-11-20 07:11:20,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6577 states, 4212 states have (on average 1.255460588793922) internal successors, (5288), 4356 states have internal predecessors, (5288), 1905 states have call successors, (1905), 460 states have call predecessors, (1905), 459 states have return successors, (1904), 1846 states have call predecessors, (1904), 1904 states have call successors, (1904) [2021-11-20 07:11:20,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6577 states to 6577 states and 9097 transitions. [2021-11-20 07:11:20,609 INFO L78 Accepts]: Start accepts. Automaton has 6577 states and 9097 transitions. Word has length 288 [2021-11-20 07:11:20,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:11:20,609 INFO L470 AbstractCegarLoop]: Abstraction has 6577 states and 9097 transitions. [2021-11-20 07:11:20,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-20 07:11:20,610 INFO L276 IsEmpty]: Start isEmpty. Operand 6577 states and 9097 transitions. [2021-11-20 07:11:20,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-11-20 07:11:20,627 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:11:20,628 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:11:20,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 07:11:20,628 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:11:20,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:20,629 INFO L85 PathProgramCache]: Analyzing trace with hash 568969091, now seen corresponding path program 1 times [2021-11-20 07:11:20,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:20,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967272029] [2021-11-20 07:11:20,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:20,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:11:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:11:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:11:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:11:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:11:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:11:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:20,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:11:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:11:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:11:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:11:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:11:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:11:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:11:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:11:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:11:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:11:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:11:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-20 07:11:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-20 07:11:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-20 07:11:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:11:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:11:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-20 07:11:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-20 07:11:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-20 07:11:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:21,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2021-11-20 07:11:21,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:11:21,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967272029] [2021-11-20 07:11:21,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967272029] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:11:21,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:11:21,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:11:21,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48334582] [2021-11-20 07:11:21,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:11:21,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 07:11:21,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:11:21,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 07:11:21,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:11:21,306 INFO L87 Difference]: Start difference. First operand 6577 states and 9097 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-20 07:12:04,108 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:06,136 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:08,163 WARN L515 Checker$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 07:12:09,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:11,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:13,705 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:15,496 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:17,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:19,125 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:21,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:24,474 WARN L515 Checker$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 07:12:26,820 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:27,838 WARN L515 Checker$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 07:12:29,884 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:31,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:34,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:36,235 WARN L515 Checker$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 07:12:37,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:38,497 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:40,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:12:40,942 INFO L93 Difference]: Finished difference Result 20212 states and 29230 transitions. [2021-11-20 07:12:40,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 07:12:40,943 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 341 [2021-11-20 07:12:40,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:12:41,022 INFO L225 Difference]: With dead ends: 20212 [2021-11-20 07:12:41,022 INFO L226 Difference]: Without dead ends: 13674 [2021-11-20 07:12:41,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-11-20 07:12:41,068 INFO L933 BasicCegarLoop]: 7140 mSDtfsCounter, 10939 mSDsluCounter, 12996 mSDsCounter, 0 mSdLazyCounter, 21175 mSolverCounterSat, 11097 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11875 SdHoareTripleChecker+Valid, 20136 SdHoareTripleChecker+Invalid, 32275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 11097 IncrementalHoareTripleChecker+Valid, 21175 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:12:41,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11875 Valid, 20136 Invalid, 32275 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [11097 Valid, 21175 Invalid, 3 Unknown, 0 Unchecked, 78.3s Time] [2021-11-20 07:12:41,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13674 states. [2021-11-20 07:12:41,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13674 to 9647. [2021-11-20 07:12:41,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9647 states, 6200 states have (on average 1.252741935483871) internal successors, (7767), 6417 states have internal predecessors, (7767), 2761 states have call successors, (2761), 686 states have call predecessors, (2761), 685 states have return successors, (2760), 2673 states have call predecessors, (2760), 2760 states have call successors, (2760) [2021-11-20 07:12:41,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9647 states to 9647 states and 13288 transitions. [2021-11-20 07:12:41,859 INFO L78 Accepts]: Start accepts. Automaton has 9647 states and 13288 transitions. Word has length 341 [2021-11-20 07:12:41,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:12:41,861 INFO L470 AbstractCegarLoop]: Abstraction has 9647 states and 13288 transitions. [2021-11-20 07:12:41,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-20 07:12:41,861 INFO L276 IsEmpty]: Start isEmpty. Operand 9647 states and 13288 transitions. [2021-11-20 07:12:41,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-11-20 07:12:41,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:12:41,878 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:41,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 07:12:41,879 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:12:41,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:41,879 INFO L85 PathProgramCache]: Analyzing trace with hash 367447164, now seen corresponding path program 1 times [2021-11-20 07:12:41,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:12:41,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163293519] [2021-11-20 07:12:41,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:12:41,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:12:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:12:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:12:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 07:12:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 07:12:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:12:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 07:12:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:12:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 07:12:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 07:12:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:12:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:12:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:12:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:12:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:12:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-20 07:12:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-20 07:12:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:12:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 07:12:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-20 07:12:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-20 07:12:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-20 07:12:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-20 07:12:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-11-20 07:12:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:12:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-20 07:12:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-11-20 07:12:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-20 07:12:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-11-20 07:12:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:42,719 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-20 07:12:42,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:12:42,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163293519] [2021-11-20 07:12:42,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163293519] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:12:42,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:12:42,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:12:42,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386639307] [2021-11-20 07:12:42,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:12:42,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:12:42,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:12:42,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:12:42,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:12:42,722 INFO L87 Difference]: Start difference. First operand 9647 states and 13288 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (39), 7 states have call predecessors, (39), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-20 07:12:47,611 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:49,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:12:51,854 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:13:11,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:13:13,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:13:14,855 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:13:17,250 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:13:18,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:13:19,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:13:21,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:13:22,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:13:24,922 WARN L515 Checker$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 07:13:26,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:13:26,378 INFO L93 Difference]: Finished difference Result 13298 states and 19409 transitions. [2021-11-20 07:13:26,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 07:13:26,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (39), 7 states have call predecessors, (39), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 343 [2021-11-20 07:13:26,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:13:26,382 INFO L225 Difference]: With dead ends: 13298 [2021-11-20 07:13:26,382 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 07:13:26,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:13:26,444 INFO L933 BasicCegarLoop]: 4494 mSDtfsCounter, 5562 mSDsluCounter, 7706 mSDsCounter, 0 mSdLazyCounter, 11940 mSolverCounterSat, 5798 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6147 SdHoareTripleChecker+Valid, 12200 SdHoareTripleChecker+Invalid, 17739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5798 IncrementalHoareTripleChecker+Valid, 11940 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:13:26,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6147 Valid, 12200 Invalid, 17739 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5798 Valid, 11940 Invalid, 1 Unknown, 0 Unchecked, 42.7s Time] [2021-11-20 07:13:26,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 07:13:26,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 07:13:26,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:13:26,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 07:13:26,449 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 343 [2021-11-20 07:13:26,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:13:26,450 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:13:26,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (39), 7 states have call predecessors, (39), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-20 07:13:26,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:13:26,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 07:13:26,453 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:13:26,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 07:13:26,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.